3 years ago

PLS HELP ASAP ON BOTH

Chemistry

2 answers:

NNADVOKAT [17]3 years ago

7 0

19. Mesosphere I think

20. True not sure though

lesya692 [45]3 years ago

3 0

Answer:

mesosphere

I hope this helps a little bit.

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What is the law of conservation of mass

a_sh-v [17]

The law of conservation of mass States that mass in an isolation system is neither created nor destroyed by chemical reactions or physical transformations and the mass of the products in a chemical reaction must equal the mass of the reactants.

4 0

3 years ago

against at -20 degree centigrade occupied the volume of one 40 ml calculate the temperature at which the volume of cash pickup 6

worty [1.4K]

The final temperature :T₂=411.125 K = 138.125 °C

<h3>Further explanation</h3>

Given

T₁=-20 °C+273 = 253 K

V₁=40 ml

V₂=65 ml

Required

Final temperature

Solution

Charles's Law

When the gas pressure is kept constant, the gas volume is proportional to the temperature

$\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$

Input the value :

T₂=(V₂.T₁)/V₁

T₂=(65.253)/40

T₂=411.125 K = 138.125 °C

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3 years ago

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Alekssandra [29.7K]

Answer:

A.), as it will decrease.

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3 years ago

Write the electron configuration

ycow [4]

Answer:

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5

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-Which of the following best explains how human activities can directly contribute to landslides?

Alborosie

Humans disturb the earth and because of this, the earth is weakened

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