compare chemical weathering to mechanical weathering
Chemical weathering and mechanical weathering are two types of weathering processes that break down rocks through different mechanisms. Chemical weathering involves chemical reactions, while mechanical weathering involves physical forces. Both types of weathering can occur simultaneously and work together.
Explanation:Chemical weathering and mechanical weathering are two types of weathering processes that break down rocks, but they involve different mechanisms. Chemical weathering occurs when rocks are broken down through chemical reactions, such as oxidation or dissolution. Mechanical weathering, on the other hand, involves physical forces, such as ice wedging, abrasion, or root growth, that break rocks into smaller pieces.
An example of chemical weathering is the rusting of iron, where iron reacts with oxygen in the presence of moisture to form iron oxide. An example of mechanical weathering is the freeze-thaw cycle, where water seeps into cracks in rocks, freezes, expands, and causes the rocks to break apart.
Both types of weathering can occur simultaneously and contribute to the overall weathering process. They can also work together, as in the case of tree roots growing into cracks in rocks and exerting physical force while also releasing acids that chemically break down the rocks.
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In order for oxygen gas, nitrogen gas, and carbon dioxide to have the same volume, they must have the same ______. (Check all answers that are true. There may be one or more than one.) Question 1 options:
1.temperature 2.pressure 3. mass 4.number of molecules 5. formula
Which type of clouds are tall and very dark on the bottom;usually gray black
Options:
1.)Cirrus
2.)Stratus
3.)Cumulus
4.)Cumulonimbus
Two descriptions for a sub-atomic particle are listed below: Description 1: Non-charged particle Description 2: Located inside the nucleus of an atom Which sub-atomic particle or particles fit these descriptions? Electrons only Neutrons only Electrons and protons Protons and neutrons
Description 2: Located inside the nucleus of an atom fits neutrons only.
Electrons are not located inside the nucleus of an atom. They are found in electron orbitals or electron clouds surrounding the nucleus. Therefore, Description 2 does not apply to electrons.
Protons are positively charged particles located inside the nucleus of an atom. However, Description 1 states "Non-charged particle," which does not fit protons since protons are positively charged.
Neutrons are particles located inside the nucleus of an atom, and they are electrically neutral, meaning they have no net charge. Therefore, Description 2 fits neutrons.
Electrons are negatively charged particles located outside the nucleus of an atom. Description 1, "Non-charged particle," does not apply to electrons.
So, based on the descriptions provided:
Description 1 does not fit any of the sub-atomic particles listed.
Description 2 fits neutrons only, as they are located inside the nucleus of an atom and are non-charged particles.
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At STP, which sample contains the same number of molecules as 3.0 liters of H2(g)?
A) 1.5 L of NH3(g)
B) 2.0 L of CO2(g)
C) 3.0 L of CH4(g)
D) 6.0 L of N2(g)
Answer is: C) 3.0 L of CH4(g).
Vm = 22.4 L/mol; molar volume at STP (Standard Temperature and Pressure).
At STP one mole of gas occupies 22.4 liters of volume.
In this question all substances are gases, amount of substance depends on volume of the gas.
Same volume, same number of molecules.
So 3 liters of hydrogen gas (H₂) has the same number of molecules as 3 liters of methane gas (CH₄).
The movement of food substances from the stems to growing tissues and storage tissues is called:
which of the following statements about DNA of gametes is true?
B) Gametes result in new combinations of genes and have one half of the DNA of somatic cells.
Because gametes are formed through a type of cell division called meiosis.
Meiosis results in cells with half the number of chromosomes as the parent cell. Since DNA is organized into chromosomes, gametes end up with half the DNA content of somatic cells.
Additionally, meiosis shuffles and recombines genetic material, creating new combinations of genes in the gametes. This contributes to genetic diversity in offspring.
The main difference between the internal combustion engine and the Diesel engine is that the Diesel engine
The main difference between the internal combustion engine and the diesel engine is that the diesel engine is that air that it has is being compressed in the beginning and the fuel is later injected after the air has been compressed. Whereas the internal combustion engine generates its power by having fuel to be burn in which the air is compiled with the engine in which the gas that became hot is used to drive to do their particular work as it started to expand.
The primary difference between gasoline and Diesel engines is the fuel ignition method. Gasoline engines use a spark plug, while Diesel engines use hot compressed air. Diesel engines are more efficient, longer-lasting but also heavier and more expensive.
The main difference between an internal combustion engine and a Diesel engine lies in the method of igniting the fuel. In gasoline engines, a spark plug ignites the fuel-air mixture when the piston reaches the top of the cylinder. In contrast, Diesel engines do not use spark plugs. Instead, they rely on the heat generated by the compression of air in the cylinder to ignite the fuel. The Diesel cycle involves admitting only air into the cylinder, compressing it adiabatically to very high pressures, and then injecting the fuel into the now-hot air for ignition.
Due to their different ignition mechanisms, Diesel engines tend to be more efficient and durable. They can operate at higher thermal efficiencies, allowing for more miles per gallon in vehicle applications. The ability to use a variety of fuels, including biodiesel, also makes Diesel engines versatile in terms of energy sources.
____ indicate a bal of .10 % or higher
Intoxication with most people, attention and control are impaired, slow reflexes, thinking and coordination are slowed, and driving skills are extremely impaired
solutions of sodium fluoride and dilute hydrochloric acid are mixed
How can you tell if two objects are in thermal equilibrium?
A. The objects are touching each other.
B. The object's temperatures are changing.
C. The object's are the same size.
D. The object's have the same temperature.
4. In a chemical reaction, mass is conserved. This means that (1 Point)
a) The mass of the reactants stays the same during a chemical reaction
b) The mass of the products stays the same during a chemical reaction
c) The type and number of atoms in the reactants equals the type and number of atoms in the products
d) The mass of the products is always twice the mass of the reactants.
In a chemical reaction, the number of atoms that remained conserved is the same in the products and the reactants. Thus, option C is correct.
The law of conservation of mass states that during the chemical reaction the mass has not been lost, it has been converted from one form to another.
The law of conservation states that the mass of the reactant and products have been similar in a chemical reaction. The mass has been expressed in terms of the number of atoms for each type of atom.
Thus, in a chemical reaction, the number of atoms that remained conserved is the same in the products and the reactants. Thus, option C is correct.
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a chemical reaction produces .884 mols of H2S gas. what volume will the gas occupy at STP? Knowing the molar mass is 32.0 g/mol, what is the density of this gas?
The Culpepper basin in Virginia, as well as some smaller basins near Richmond, have many rocks filled with fish fossils and dinosaur tracks. These rocks are MOST LIKELY A) igneous. B) intrusive. C) sedimentary. D) metamorphic.
Answer:
c- Sedimentary
Explanation:
What organisms get their energy from eating other things
Which of the following was not included in the bill of rights
Answer:
voting rights
Explanation:
There is nothing specifically written in the Bill of Rights regarding voting rights.
P = ? in kPa
V= 0.602 L
n = 0.00801 mol
T = 311 K
R = 8.314 L-kPa/mol-K
Use numbers as written to calculate. Round to nearest hundredth.
Which type of element seeks to lose electrons
A circuit is shown in the picture above. Energy is transferred first from the battery to the circuit wire and then from the circuit wire to the light. What energy transformations occur between these two transfers? A. Energy is transformed first from chemical energy to light and heat energy and then from light and heat energy to electrical energy. B. Energy is transformed first from mechanical energy to chemical energy and then from chemical energy to light and heat energy. C. Energy is transformed first from chemical energy to mechanical energy and then from mechanical energy to light and heat energy. D. Energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat energy.
D? I'm aware that I'm late
Sorry but the answer may be right
Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance. Therefore, the correct option is option D that is energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat energy.
What is Enthalpy?Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.
Energy is transferred first from the battery to the circuit wire and then from the circuit wire to the light. Here, energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat energy.
Therefore, the correct option is option D.
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What is the experimental molar heat of combustion
how much heat is required to convert 74 grams of ice at -4 C into 74 grams of water at 52 C
Hf=334 j/g
To convert 74 grams of ice at -4°C into 74 grams of water at 52°C, we need to calculate the heat required for temperature change and phase change. First, we heat the ice from -4°C to 0°C, then calculate the heat required to convert the ice at 0°C to water at 0°C, and finally heat the water from 0°C to 52°C. The total heat required is 41341.36 J.
Explanation:To calculate the heat required to convert 74 grams of ice at -4°C into 74 grams of water at 52°C, we need to consider the temperature change and the phase change. First, we need to heat the ice from -4°C to its melting point of 0°C. The heat required can be calculated using the equation Q = mCpΔT, where Q is the heat, m is the mass, Cp is the specific heat capacity and ΔT is the change in temperature.
Q = 74 g x 2.06 J/g°C x (0°C - (-4°C)) = 607.04 J
Next, we need to calculate the heat required to convert the ice at 0°C into water at 0°C. This is the heat of fusion, which is 334 J/g. Therefore, the heat required is given by:
Q = 74 g x 334 J/g = 24716 J
Lastly, we need to heat the water from 0°C to 52°C. Using the same equation as before:
Q = 74 g x 4.18 J/g°C x (52°C - 0°C) = 16018.32 J
To find the total heat required, we sum up the heat calculated above: 607.04 J + 24716 J + 16018.32 J = 41341.36 J.
how many significant figures are in the measurement 0.0020100 kilograms
explain how cells, proteins, deoxyribonucleic acid (DNA) molecules, chromosomes, and genes are related to each other.
What is it called when energy transfers between objects until they reach the same temperature and their particles move at the same rate? Kinetic Energy Thermal energy Thermal equilibrium Movement
Answer:The correct answer is option Thermal equilibrium.
Explanation:
Thermal equilibrium: When the two objects with with difference in temperature comes in contact with each other. Object with higher temperature transfer its heat to the an object with lower temperature.This transfer will last until the temperature of both the objects becomes equal.
At this point objects are said to be in Thermal equilibrium.
PLEASE HELP! 50 POINTS IF CORRECT!
Choose which diagram best represents season changes on Earth caused by the relationship between the Earth and Sun.
the molecules if DNA produced in replication are
Answer:
They Are Connected
please!
mdndjfjfhdjcjff
Hydrogen and oxygen bond together due to the number of electrons in their orbitals. So it would be labeled two hydrogen and one oxygen.
Which of the following is the best defense against all germs?
cleanliness
vaccination
antibiotics
isolation
Answer:
The best defense against all germs would be vaccination.
Vaccines are specifically designed to stimulate the immune system to recognize and defend against specific pathogens (bacteria, viruses, etc.). They are a highly effective way to prevent many infectious diseases and provide immunity against a wide range of germs. Vaccination helps protect individuals and can also contribute to herd immunity, reducing the spread of diseases within communities.
Cleanliness is essential for preventing the spread of germs but may not protect against all germs, as some are highly contagious or can survive in various environments. Antibiotics are effective against bacterial infections but do not work against viruses or other pathogens. Isolation can help prevent the spread of germs in certain situations, but it is not a comprehensive defense against all germs, and it may not be practical or necessary in many cases.
How are fossil fuels used in the harvesting of fresh apples from an apple tree?
A. Fossil fuels power the rainwater used by the tree.
B. Fossil fuels power the ripening of the apples.
C. Fossil fuels power the person picking up apples from the ground.
D. Fossil fuels power the machine that shakes the tree so that the apples to the ground.
Answer: The correct answer is : D. Fossil fuels power the machine that shakes the tree so that the apples to the ground.
Explanation: The use of fossil fuels has been incorporated into food production since 1950 in the form of kinetic energy, pesticides, and other products used in production. Fossil fuels are non-renewable materials such as petroleum (oil and gas) and coal.
If a mass that weighs 8 kg is held at a height of 10 m, what is its potential energy?
The potential energy of an 8 kg mass held at a height of 10 meters is 784 joules, calculated using the formula for gravitational potential energy: PE = m * g * h.
Explanation:The question is related to the concept of Gravitational Potential Energy in physics. The formula to calculate the potential energy, PE, of an object is PE = m * g * h, where m represents the mass, g the acceleration due to gravity, and h the height of the object above ground level.
Given that the mass is 8 kg and the height is 10 m, the potential energy is calculated by inserting these values into the formula. Given that the acceleration due to gravity on Earth is roughly 9.8 m/s², we find the potential energy PE = 8 kg * 9.8 m/s² * 10 m.
Therefore, the potential energy of this 8 kg mass held at a height of 10 m is 784 joules.
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