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blondinia [14]
3 years ago
13

Which of the following statements is true?

Chemistry
2 answers:
lisabon 2012 [21]3 years ago
6 0

Answer:

D. Displacement and distance traveled are the same if the direction does not change.

zmey [24]3 years ago
6 0

Answer:

D

Explanation:

if a person in a single direction, then that person may travel certain distance and if the direction is not changed then its displecemengt remains same sa that person travelled distance.

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What is the difference between a solution and a heterogeneous mixture? What are some examples?
liubo4ka [24]

A solution is a homogenous mixture meaning it has a uniform appearance throughout. (example: salt water)

heterogeneous mixture is visibly composed of different things. (example: chicken noodle soup)


8 0
3 years ago
A 4 L sample of gas at 298 K and 2 atm contains 0.250 mol of gas. If we add another 0.250 mol of gas at the same pressure and te
andrey2020 [161]

Answer:

V_2=8L

Explanation:

Hello there!

In this case, considering the Avogadro's gas law, which treats the volume and moles in a directly proportional way via:

\frac{V_1}{n_1}=\frac{V_2}{n_2}

Which can be solved for the final volume, V2, as shown below:

V_2=\frac{V_1n_2}{n_1}

Thus, by plugging in the given data, we obtain:

V_2=\frac{4L*(0.250mol+0.250mol)}{0.250mol}\\\\V_2=8L

Regards!

4 0
3 years ago
Observe: Change the Surface area from Minimum to Maximum. You can imagine that a
NeX [460]

Answer:

Changing the surface area from minimum to maximum increases the number of reactants in a chemical reaction.

An increase in surface area of a solid reactant means more of its particles are exposed to attack by the other Particle. This results in an increased chance of collisions between reactant particles, so there are more collisions in any given time and the rate of reaction increases.

3 0
3 years ago
Write a short note on detection of nitrogen in the organic compound​
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8 0
3 years ago
Describe an experiment that can be done to prove the law of conservation of mass?
Dennis_Churaev [7]

Explanation:

<h3>Given alka - seltzer and a flash, students design and conduct an experiment to prove the law of conservation of mass.</h3>

4 0
3 years ago
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