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Ray Of Light [21]
3 years ago
10

Yea I need help plzzz!

Chemistry
2 answers:
DENIUS [597]3 years ago
6 0
Shape is the answer!!!
kirill115 [55]3 years ago
4 0
The right answer is shape
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If 20 mL of gas is subjected to a temperature change from 10°C to 100°C and a pressure change from 1 atm to 10 atm,
Evgesh-ka [11]

Answer:

E. None of these

Explanation:

We know, By GAS laws,

PV = NRT, where p- pressure, v- volume, n- number of moles, R- gas constant ,and T- temperature

Now, In the question, the number of moles remains the same as the gas is the same. so n is constant so we can compare n before and after a temperature change.

\frac{P1V1}{RT1} = \frac{P2V2}{RT2}

where P1= 1 atm, P2 = 10 atm, V1= 20 mL, T1= 10°C and T2= 100°C

We don't have to worry about the standard units as they are present equally on both the sides and get cut, same goes for R( gas constant)

So putting values, we get

\frac{1*20}{R*10} = \frac{10*V2}{R*100}

Cutting, R on both sides and moving contents to the right so that only V2 is left on the left.

\frac{1*20*100}{10*10} = V2

∴ V2 = \frac{2000}{100}

∴ V2 = 20mL

3 0
2 years ago
Classify the items based on whether they are or are not matter.
Phantasy [73]

Answer:

Matter:

toothpaste

gasoline

bacteria

cell

Not matter:

happiness

sound

Explanation:

Matter is something that has mass and volume. Happiness is just a feeling, it doesn't exist in 3d world. Sound is a wave or just the movement of matter (particles of matter). Others have masses and volumes.

6 0
3 years ago
Which of the following conclusions might a scientist make when fossils of two different species of very similar organisms are fo
nata0808 [166]

Answer:

if its multiple, C and D, if not, C

Explanation:

brainliesttt?

5 0
3 years ago
Explain why constructive and destructive forces are considered competing forces.
rodikova [14]
Used mainly in the context of Geography a Constructive force is involved in making new land while a Destructive force breaks the land. As they are carrying opposite functions to one another they are considered as competing forces.
4 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
Sophie [7]

Answer:

Explanation:

A pink rose- in codominance

Genes IA, IN, and IB.- Multiple alleles

Equal proportions- incomplete dominance

5 0
3 years ago
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