Which statement is true about the Milky Way? It is a big planet. It contains the universe. It has an irregular shape. It has several billion stars.

Answer:

The answer is A- Jimmer is on a fixed-interval schedule of reinforcement.

Explanation:

Final answer:

Jimmer is on a fixed interval reinforcement schedule, as he loses the ball every 24 seconds, which is a predictable and set amount of time after he initially gets possession.

Explanation:

Jimmer, in the scenario provided, loses the ball after 24 seconds each time he gets the ball because he refuses to pass or shoot, thus triggering the shot clock.

Jimmer is on fixed interval reinforcement schedule.

This is because his behavior (holding onto the ball) is being 'rewarded' with the loss of the ball at a predictable and set amount of time after he first acquires it, which is every 24 seconds.

A fixed interval schedule of reinforcement is when reinforcement is received after a certain fixed period of time has passed, as opposed to variable interval schedules where the period of time varies, and the ratio schedules where reinforcement is based on the number of responses rather than the passage of time.

Final answer:

NaCl, I2, HCl, and KF have different types of bonds: NaCl and KF have ionic bonds, while I2 and HCl have covalent bonds.

Explanation:

The compounds NaCl, I2, HCl, and KF have different types of bonds.

NaCl, sodium chloride, has an ionic bond. In an ionic bond, one atom donates electrons to another atom to form ions with opposite charges.

I2, iodine, has a covalent bond. In a covalent bond, atoms share electrons to fill their valence shells.

HCl, hydrogen chloride, also has a covalent bond.

KF, potassium fluoride, has an ionic bond. The metal atom donates electrons to the non-metal atom.

(2.45 x 10^13) x (4.00 x 10^12) = 9.8 x 10^25

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Alkanes are hydrocarbons with only single bonds between the carbon atoms, therefore, they do not contain any double bonds.

In chemistry, an alkane is a type of hydrocarbon where all of the carbon-carbon bonds are single bonds, meaning they share just one pair of electrons. Double bonds share two pairs of electrons and are typically found in alkenes, a different type of hydrocarbon. Therefore, an alkane does not have any double bonds.

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Answer:

Molar mass of the gas is 64.3 g/mol

Explanation:

Given:

Temperature of gas, T = 301 K

Pressure of gas, P = 1.5 atm

Density of gas, D = 3.90 g/L

To determine:

The molar mass, M of the gas

Explanation

Based on the ideal gas equation

[tex]PV = nRT[/tex]

where P = pressure, V = volume ; R = gas constant, T = temperature

n = moles of the gas

[tex]n = \frac{mass(m)}{molar\ mass(M)}[/tex]

substituting for n in the ideal gas equation:

[tex]PV = \frac{m}{M} *RT\\\\M = (\frac{m}{V})*\frac{RT}{P}  \\\\density , d = \frac{mass(m)}{Volume(V)} \\\\Therefore:\\\\M = d*\frac{RT}{P} = 3.90 g/L *\frac{.0821Latm/mol-K*301K}{1.5atm} =64.3 g/mol[/tex]