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3 years ago

Consider the procedures in a simple experiment used to demonstrate the behavior of gases

Chemistry

1 answer:

Agata [3.3K]3 years ago

7 0

Answer:

B, C, E

Explanation:

did usatestprep

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Help me on this thing

suter [353]

1 linear

2 tetrahedral

3 trigonal pyramidal

4 bent

good luck

5 0

3 years ago

An 8.24 gram sample of a hydrated salt is heated until it has a constant mass of 6.20 grams. What was the percent by mass of wat

Iteru [2.4K]

Answer:

32.9%

Explanation:

The mass of water present in the original sample can be calculated by the substraction:

m H₂O = sample mass before heating - sample mass after heating

m H₂O = 8.24 g - 6.20 g = 2.04 g

The percent by mass of water can be calculated with the formula:

Water Mass / Original Sample Mass * 100 %

$\frac{2.04}{6.20}$ * 100% = 32.9%

3 0

3 years ago

PLEASE HELPP!!!!

Natasha_Volkova [10]

Answer:

The combined law is:

$\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}$

See the derivation below.

Explanation:

1. Boyle's law:

$PV=constant\\\\P_1V_1=P_2V_2$

2. Charles' law:

$\dfrac{V}{T}=constant\\\\\\\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$

3. Gay-Lussac’s law

$\dfrac{P}{T}=constant\\\\\\\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}$

4. Summary:

PV = K

V/T = K'

P/T = K''

Mulitply PV by V/T and P/T

$PV\times \dfrac{V}{T}\times \dfrac{P}{T}=K\times K'\times K''\\\\\\\dfrac{P^2V^2}{T^2}=constant\\\\\\\sqrt{\dfrac{P^2V^2}{T^2}}=\sqrt{constant}\\\\\\\dfrac{PV}{T}=constant$

Thus:

$\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}$

Which is the combined law.

4 0

4 years ago

What does OC mean internet slang? I see it all the time on funny junk, like OC this is OC, What is it? 5 stars for best answer.

Lisa [10]

I think oc means 'original character' but it can be 'of course' as well

6 0

3 years ago

Read 2 more answers

The viscosities of several liquids are being compared. All the liquids are poured down a slope with equal path lengths. The liqu

boyakko [2]

Explanation:

The property of a substance to resist the flow of motion is known as viscosity. And, more is the density of a substance more will be its viscosity.

Whereas, lesser is the density of a substance then it is easy for the substance to move.

This means that more is the viscosity of a substance least will be its flow and when a substance has lesser viscosity then it will readily flow from one point to another.

Thus, we can conclude that the viscosities of several liquids are being compared. All the liquids are poured down a slope with equal path lengths. The liquid with the highest viscosity will reach the bottom last.

8 0

3 years ago