Answer:
The volume would be 44.8 L
Explanation:
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Bond Polarity and Mixing
4. Both gasoline and olive oil are largely made of carbon atoms bonded to hydrogen atoms. In these bonds, the
electrons are shared fairly equally by the atoms. Why do you think these two substances are able to mix?
The polarity of a compound or a substance is defined as the separation of charges or the two ends of the molecule have a positive or negative end. Gasoline and oil are non-polar compounds, which dissolve in each other.
Based on the law of solubility, it can be explained as:
Polarity is defined as the ability of a compound to dissolve in water or have the dipole moment. The law suggests that, for a molecule to be polar, it can only dissolve polar substances. For example, methanol dissolves in water. Also, the non-polar compound will dissolve the non-polar compound, such that gasoline will be dissolved in the oil.The polar and non-polar substances do not mix and are not able to dissolve, for example, water and oil.Thus, the polarity of the compound and its solubility is dependent on the dipole moment or electronegativity.
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What is the major cause of erosion and weathering that affects coastline features?
Answer:
Image result for What is the major cause of erosion and weathering that affects coastline features?
Coastal erosion, which is the wearing away of coastal land or beaches, is mainly caused by the impact of waves along the shoreline. This is accentuated during storms when waves are large and crash on shore with a lot of energy. ... As the sand and rocks crash into the coast, they grind away land and rock.
Explanation:
Final answer:
The major cause of erosion and weathering affecting coastline features is the action of ocean waves which crash against coastal landscapes, leading to wear and the transport of rock fragments. Water is a key weathering agent and topographical features as well as climate influence the rate of erosion.
Explanation:
The major cause of erosion and weathering that affects coastline features is the action of ocean waves. These waves, through their persistent energy, crash against beaches and coastal cliffs, leading to erosion and the eventual collapse of land masses. Water is a significant weathering agent in the lithosphere, where it contributes to the breakdown of rock into fragments, which can be transported and redeposited elsewhere, shaping various earth surfaces, including river valleys and rocky beach coastlines. Erosion and weathering are influenced by a number of factors including climate, topography, and the presence of water, which promotes biological activity and affects soil characteristics.
Erosion by rivers, glaciers, or ocean waves can create over-steepened slopes that are prone to collapse under certain conditions, such as heavy rains, earthquakes, or the weight of accumulated materials. The role of water in weathering processes is also important for the ecosystem, as it increases the content of dissolved minerals crucial for plants and animals living in water bodies.
what type of bonding is shown in the diagram
Answer:
Covalent Bond
Explanation:
In the diagram Carbon and each of the 4 Hydrogens are sharing electrons. They are also both non metals. Both of these are characteristics of Covalent Bonds.
The type of bonding shown in the diagram is a Covalent bond. Covalent
bonding involves sharing of electrons between two elements.
Covalent bonding is necessary in the formation of new compounds and in
their attainment of a stable configuration.
In this scenario, the compound is known as methane (CH₄). The carbon atom
shares electrons with the Hydrogen atoms which helps them form the
compound CH₄ .
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How many molecules are in 49.0 g of H2SO4? Answer in units of molec.
Answer:
= 3.01× [tex]10^{23}[/tex] molecules.
Explanation:
1 mole of [tex]H_{2}SO_{4}[/tex] - 98g
? moles of [tex]H_{2}SO_{4}[/tex] - 49g
= 49 ÷ 98 = 0.5 moles of O2 in 49g.
But 1 mole of any substance = 6.023 × [tex]10^{23}[/tex] molecules
∴ 0.5 moles = 0.5 × 6.023 × [tex]10^{23}[/tex] molecules
= 3.01× [tex]10^{23}[/tex] molecules.
Of the following groups, which was the last to receive the right to vote?
A. Women
B. Hispanit men
C. African-American men
D. White men
Please select the best answer from the choices provided
Answer:
a.
Explanation:
why does mars take 462.3 earth days more than venus to revolve around the sun A.mars is cooler then Venus B. Mars is lighter then Venus C. the sun is closer to Venus then it is to mars D. the diameter of mars is less then that of Venus
Answer:
Explanation:because The Sun is closer to Venus than it is to Mars. The distance between the Sun and Mars is approximately little more than twice the distance between the Sun and Venus. Mars has to cover a longer distance in its orbit than Venus. Hence, Mars takes about 462.3 Earth days more than Venus to revolve around the Sun.
Mars takes longer to revolve around the Sun than Venus because it is farther from the Sun, as described by Kepler's third law of planetary motion, which relates orbital period to distance from the Sun.So,option C is correct.
The reason why Mars takes 462.3 Earth days more than Venus to revolve around the Sun is because the Sun is closer to Venus than it is to Mars. This is directly related to Kepler's third law of planetary motion, which states that the square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit. In simpler terms, this means that planets farther from the Sun take longer to complete an orbit.
Venus is much closer to the Sun, with an orbital period of approximately 225 Earth days. On the other hand, Mars is farther away from the Sun, resulting in a significantly longer orbital period of about 687 Earth days. The difference in orbital periods is a consequence of their respective distances from the Sun rather than their physical characteristics, such as temperature, mass, or diameter.
define chemical equation
Answer:
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.
Explanation:
Final answer:
A chemical equation represents a chemical reaction, listing reactants on the left and products on the right, separated by an arrow, and must be balanced to reflect conservation of mass.
Explanation:
A chemical equation is a concise representation of a chemical reaction. It uses formulas to denote the reactants and products involved in the reaction, as well as symbols to convey additional information. The reactants, which are the starting materials, are written on the left-hand side of the equation. An arrow separates these from the products, which are the end result of the reaction, listed on the right-hand side. This arrow can be read as "yields" or "produces". To properly reflect the conservation of mass, a chemical equation must be balanced, ensuring that the same number and type of atoms are present on both sides of the equation. For example, the combustion of methane is represented by a specific chemical equation showing methane reacting with oxygen to produce carbon dioxide and water.
What pressure in kPa is exerted by 2.150 mol of Co, at 57.00 °C in 0.7500 L?!
Find the volume. *
1)
6 in
11 in
Volume =
Known :
r = 6 in
h = 11 in
Asked :
Volume = ...?
Answer :
V = πr²h
= 3.14 × 6² × 11
= 3.14 × 36 × 11
= 3.14 × 396
= 1,243.44 in³
So, the volume is 1,243.44 in³ (2nd choice)
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What ecosystem is being described in the passage?
Answer:were is the passage
Explanation:
We’re the pasagee
In most animals, combinations of various tissues make up
functional units
called
Answer:
Animal tissues are grouped into four basic types: connective, muscle, nervous, and epithelial. Collections of tissues joined in units to serve a common function compose organs.
Explanation:
Final answer:
In multicellular animals, tissues such as epithelial, connective, muscle, and nervous form organs with specific functions, which then contribute to various organ systems maintaining life processes within the organism.
Explanation:
In the biological organization of multicellular animals, the combinations of various tissues make up functional units known as organs. These tissues include groups of similar cells that perform related functions. There are four main types of animal tissues: epithelial, connective, muscle, and nervous tissues. Epithelial tissue covers the body surfaces and lines body cavities, connective tissue supports and binds other tissues, muscle tissue is responsible for movement, and nervous tissue is involved in receiving and transmitting nerve impulses.
Each of these tissues contributes to the formation of organs, which are essential structures with specialized functions necessary for the survival of the organism. These organs are then organized into systems such as the digestive, circulatory, and nervous systems, all cooperating to maintain the life processes within the animal body.
Which is an example of a natural disaster limiting population growth?
Answer:
A hurricane wiping out a new species of flower in the tropical rain forests of Brazil.
Explanation:
The gas sample has a volume of 69.0 μL at 24.2 °C . What is the volume of the gas after the sample is cooled to 8.3 °C at constant pressure? V = μL Which tube represents the gas after the sample is cooled at constant pressure? A
At the constant pressure, the volume of the gas was equal to 65.31 μL at a temperature of 8.3ºC.
What is Charles's law?Charles's law can be described as that when pressure is kept constant, the volume of gas is directly proportional to its temperature.
Therefore, V ∝ T
[tex]\frac{V_1}{T_1} =\frac{V_2}{T_2}[/tex] ..................(1)
Given, the initial temperature of the gas, T₁ = 24.2 ºC
T₁ = 24.2 + 273 = 297.2 K
The final temperature of the gas, T₂ = 8.3ºC
T₂ = 8.3 ºC + 273 = 281.3 K
Given, the initial volume of gas, V₁ = 69.0 μL then the final volume of the gas can be determined as:
Put the value of V₁, T₁, and T₂ in equation (1), and we get:
[tex]\frac{69}{297.2} =\frac{V_2}{281.3}[/tex]
[tex]V_2=\frac{69\times 281.3}{297.2}[/tex]
V₂ = 65.31 μL
Therefore, the volume of the gas was equal to 65.31 μL at a temperature of 8.3ºC. The volume of the gas will decrease when the final temperature is lowered as the pressure remains constant.
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A hydrogen ion, H+, is the same as a....
PLEASEEE
It is the same as a proton. That is why, if hydrogen was a molecule not an ion, one electron is needed to 'cancel' out the proton.
A hydrogen ion, H+, is essentially a proton and in an aqueous solution, it is better represented as a hydronium ion, H3O+, showing its association with water molecules.
Explanation:A hydrogen ion, H+, is often referred to as a proton because it is a hydrogen atom that has lost its lone electron. However, we do not find bare protons in an aqueous solution since they are typically attracted to water molecules, forming hydronium ions (H3O+). The representation of H3O+ is more accurate for how a hydrogen ion exists in water. While in many chemical reactions, H+ and H3O+ are treated equivalently, the latter shows our understanding that protons are associated with water molecules, and not free-floating.
Salt and water are the general products of which type of reaction?
A. Decomposition
B. Combustion
C. Single-displacement
D. Acid-base
Answer:
Acid Base
Explanation:
Acid base reactions produce water by combining H+ from acids and OH- from bases and the remaining spectator ions form salts
Answer:
Acid-based
Explanation:
Acid base reactions produce water by combining H+ from acids and OH- from bases and the remaining spectator ions form salts
What do the symbols tell you about the conditions of the reactions shown to the right? Check all of the boxes that apply.
-The products and reactants of both reactions are gases.
-Reaction 1 occurs at high pressure.
-Reaction 2 makes a small amount of an additional product.
-A catalyst is used for reaction 2.
Answer:
A and D
Explanation:
thank me later
Answer:
A and D
A. The products and reactants of both reactions are gases.
D. A catalyst is used for reaction 2.
Explanation: got it right on edge
What is the net force acting on the box
Answer: 65 N
Explanation:
I just did the question
The modern periodic table is different from Mendeleevs in several ways. In which way are the two tables the same?
Mendeleev's and the modern periodic table are both organized by increasing atomic number, grouped into periods and groups showing reactivity and physical properties. Both tables also divide into metals, nonmetals and accommodation for chemical families.
Explanation:Both Mendeleev's periodic table and the modern periodic table are organized based on increasing atomic number and have a structure that groups elements into periods (horizontal rows) and groups (vertical columns). This arrangement shows patterns of chemical reactivity and physical properties. Furthermore, both tables accommodate the division into metal and nonmetals, and have provisions for chemical families, such as the alkali metals, alkaline earth metals, halogens, and noble gases.
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Time (s) [NO2] (mol/L) 0 0.500 1,200 0.444 3,000 0.381 4,500 0.340 9,000 0.250 (Note: The rate law only depends on the concentration of NO2.) Consider the reaction NO2(g) + CO(g) → NO(g) + CO2(g). The data in the table was obtained by observing the reaction. What is the order of this reaction? A. zero order B. first order C. second order D. third order
Answer:
C on plato good luck
Explanation:
Why is the C-14/C-12 ratio used to date once-living organisms?
The C-14/C-12 ratio is used to date once-living organisms because C-12 is fixed value of any organisms but the value of C-14 is constantly decreasing by time and so every organism have their specific ratio of C14/C12 .
What do you mean by C-14 and C-12 isotope ?Carbon-12 and carbon-14 are two isotopes of the element carbon. The difference between carbon-12 and carbon-14 is the number of neutrons in each of their atoms.
Because of the different number of neutrons, carbon-12 and carbon-14 differ in terms of radioactivity. Carbon-12 is a stable isotope carbon-14, on the other hand, undergoes radioactive decay:
146C → 147N + 0-1e
C-12 is fixed value of any organisms but the value of C-14 is constantly decreasing by time and so every organism have their specific ratio of C14/C12 ,hence due to this reason the C-14/C-12 ratio used to date once-living organisms .
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Final answer:
The C-14/C-12 ratio is used to date once-living organisms by comparing the ratios in living and deceased organisms to calculate the age.
Explanation:
The C-14/C-12 ratio is used to date once-living organisms because after death, the C-14 isotope decays at a known rate, leading to a decrease in the ratio. By comparing this ratio to the ratio in living organisms, scientists can determine the age of the once-living organism by calculating the number of half-lives that have passed.
How many grams of C6H12O6 are needed to be dissolved in water to make 100. grams of a 250. ppm solution?
Answer:
0.025 g C6H12O6
Explanation:
ppm = (g solute/ g solution)* 10^6
g solute= (ppm * g solution)/ 10^6
g solute = (250 ppm * 100 g)/10^6
g solute=0.025 g C6H12O6
Mass of C₆H₁₂O₆ needed to be dissolved in water to make 100g of a 250ppm solution is 0.025g.
What is Parts Per Million?Parts per million or ppm mean out of a million. Usually describes the concentration of solute in the solvent. One ppm is equivalent to 1 milligram of something per liter of water (mg/l).
This could be used to describe contents in water, a supplier's defective rate, etc.
It is technically a dimensionless measure illustrated as a percentage, and is better suited to describing smaller concentrations of substances in gases, liquids, or solids.
Given,
Mass of solution = 250ppm = 250 × 10⁶ g
a 250 ppm solution would be 250 g of solute per 1,000,000 g solution. To make 100 g of this solution would require:
(250 × 100) ÷ 10⁶ = 0.025g
Therefore, Mass of C₆H₁₂O₆ needed to be dissolved in water to make 100g of a 250ppm solution is 0.025g.
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Calculate the pOH of a solution if the concentration of hydroxide ions (OH-) is 1.9 x 10-5M?
Answer:
9.28
Explanation:
pOH refers to a measure of hydroxide ions concentration. pOH tells about the alkalinity of a solution. If pOH is less than 7 then aqueous solutions are alkaline, acidic if pOH is greater than 7 and neutral if pOH is equal to 7.
Concentration of the hydroxide ions = 1.9 x 10-5 M
pH = [tex]-log(1.9\times 10^{-5})=4.72[/tex]
pOH = 14 - pH
=14 - 4.72 = 9.28
Erosion piles up in low places to form:
soil and sand
lava and soil
magma and silt
sand and lava
Answer:
suck dryeeeeeeeeeeeeeeeeeeeeeeeeeeeewwkkffjfkv3kmc,kflr
Explanation:
Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm
vertical distance from the bottom of the trough to the top of the crest.
Which statement best describes the energy in Henri and Geri's waves?
Answer:
I'm thinking Henri's wave and Geri's wave have the same amplitude and energy, but i'm not %100 sure
Explanation:
Answer:
B: Henri’s wave and Geri’s wave have the same amplitude and the same energy.
Explanation:
on edge2021!! hope this helps!!
Which of the following forms a water solution that will conduct electricity?
F. CaCl2
G. CO2
H. NO2
J. SiF4
Answer: F. CaCl2
Explanation:
Calcium Chloride (CaCl2) is an ionic compound. In an aqueous state,this compound is a good conductor of electricity.
What is the correct order of steps to determine the mass of product created, given a certain mass of reactant?
I. Convert given mass to moles
II. Determine mole ratio between given mass and substance being solved for
III. Balance the equation
IV. Convert moles of substance being solved for to mass
Answer: 3, 1, 2, 4
Explanation:
The correct order of steps to determine the mass of product created, given a certain mass of reactant are 3, 1, 2, 4.
What is mass?The quantity of matter that makes up every item or body is the greatest way to understand mass. Everything that we can see has mass. Examples of objects with mass include a table, a seat, your bed, a ball, a glass, or even air. The mass of a thing determines whether it is light or heavy.
The correct order of steps to determine the mass of product created, given a certain mass of reactant are
Balance the equation
Convert given mass to moles
Determine mole ratio between given mass and substance being solved for
Convert moles of substance being solved for to mass
Therefore, the correct order of steps to determine the mass of product created, given a certain mass of reactant are 3, 1, 2, 4.
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an NaOH solution contains 1.90 mol of NaOH, and its concentration is 0.555 M. What is the volume of the solution?
Answer:
The volume of solution that contains 1.9 moles of NaOH is 3.42 L
Explanation:
To solve the question, we note that the solution contains 1.9 moles of 0.555 M NaOH
Therefore, 1000 mL contains 0.555 moles of NaOH
1000/0.555 mL contains 1 mole of NaOH
1.9 × 1000/0.555 mL contains 1.9 moles of NaOH
Therefore, the volume of solution that contains 1.9 moles of NaOH is 1.9 × 1000/0.555 mL or 3423.42342 mL = 3.42 L.
How many joules of heat are needed to raise the temperature of 5.0 g of aluminum from 22°C to 32°C, if the specific heat of aluminum is 0.90 J/g°C .
Answer:
Heat, Q = 45 J
Explanation:
We have,
Mass of aluminium is 5 g
The temperature is raised from 22°C to 32°C.
The specific heat of aluminium is 0.90 J/g°C.
It is required to find the heat are needed to raise the temperature.
The heat required to raise the temperature is given by :
[tex]Q=mc\Delta T\\\\Q=5\times 0.9\times (32-22)\\\\Q=45\ J[/tex]
So, 45 J of heat are needed to the temperature of 5.0 g of aluminum from 22°C to 32°C.
Which half-reaction correctly represents reduction? *
a. S²⁻+2e⁻ ⇒ S⁰
b. S²⁻⇒S⁰ + 2e⁻
c.Mn⁷⁺+3e⁻⇒Mn⁴⁺
d.Mn⁷⁺⇒Mn⁴⁺₊3e⁻
Answer:
C
Explanation:
Reduction can be seen through addition (gaining) of electrons, addition of Hydrogen or removal of Oxygen
Mn7+ is reduced to Mn4+ by the addition of 3 electrons.
What can you predict from an element's location on the periodic table?
it's properties
it's chemical name
it's chemical symbol
when it was discovered
Answer:
properties
Explanation:
the location on the periodic table can indicate periodic trends such as electronegativity, ionization energy and also the proton amount of the element.
Final answer:
The periodic table allows predictions about an element's properties and behavior based on its location. The group number indicates valence electrons and chemical reactivity, and elements in the same group share similar chemical properties. The periodic table also provides insights into atomic radius, ionization energies, electron affinities, and electronegativity.
Explanation:
The periodic table provides valuable information about an element's properties and behavior. The number of valence electrons, which determines an element's reactivity, can be determined by its group number on the periodic table. Elements in the same group often have similar chemical properties. Additionally, the location of an element on the periodic table can provide insights into its atomic radius, ionization energies, electron affinities, and electronegativity.