QUESTION 4

Chemistry

1 answer:

Nikolay [14]3 years ago

3 0

Answer:

False

Explanation:

According to kinetic molecular theory, all collisions are perfectly elastic and energy is conserved.

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5. What kind of model is represented in the image below?"

Advocard [28]

Answer:

virtual

Explanation:

because we cannot touch or sense it

4 0

3 years ago

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Write a balanced chemical equation for the following reactions:

ivann1987 [24]

The balanced chemical equation for the following equation is:

Ca(OH)
2

+CO
2

⟶CaCO
3

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O

7 0

2 years ago

Use Q = mcAT

mr Goodwill [35]

Answer:

1).....for the specific heat capacity(c) of water is 4200kg/J°C..

....guven mass(m)=320g(0.32kg)

...change in temperature(ΔT) =35°C

from the formula

Q=mcΔT

Q=0.32Kg x 4200kg/J°C x 35°C

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3 years ago

Determine the volume of distilled water that should be added to 20.0 mL of 12.0 M HCl(aq) in order to prepare a 0.500 M HCl(aq)

BARSIC [14]

Answer:

$V_{H_2O}=460 mL$

Explanation:

Hello!

In this case, in a dilution process, water is added to a solute in order to decrease its concentration but increase the volume of the solution. It means that if we have 20.0 mL of a 12.0-M solution of HCl and we want a 0.500-M solution, we need to apply the following formula considering that the moles remain unchanged:

$M_1V_1=M_2V_2$