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Soloha48 [4]
3 years ago
12

When changing lanes, you should:

Chemistry
1 answer:
Greeley [361]3 years ago
5 0
The correct answer is A. Adjust your speed to match traffic in the new lane

they want me to use 20 characters haha ignore this down here  
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To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.6-L bulb, then filled
aleksandrvk [35]

Answer:

The gas was N₂

Explanation:

V = 3.6L

P = 2.0 atm

T = 24.0°C = 297K

R = 0.0821 L.atm/K.mol

m = 8.3g

M = molar mass = ?

Using ideal gas equation;

PV = nRT

n = no. Of moles = mass / molar mass

n = m/M

PV = m/M * RT

M = mRT / PV

M = (8.3*0.0821*297) / (2.0*3.6)

M = 28.10

Since X is a diatomic molecule

M = 28.10 / 2 = 14.05 g/mol

M = Nitrogen

X = N₂

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2 years ago
Why is paper chromatography used for amino acids
vivado [14]

<em>Paper chromatography is especially useful in characterizing amino acids. The different amino acids move at differing rates on the paper because of differences in their R groups.</em>

5 0
1 year ago
Why is the sun's renewable energy important to animals?
shepuryov [24]

Answer:

2. they eat plants that get their energy from the sun

Explanation:

Based on the way energy flows through an ecosystem, animals could not survive if they did not have the source of plants. So, the sun's renewable energy is important to animals because the sun helps them grow their food.

I hope this helps and makes sense!

5 0
2 years ago
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A low ph scale would indicate that the water is A. Neutral B. Basic C. Acidic
tatyana61 [14]
I think the answer is C. acidic
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2 years ago
In which state of matter do particles have the least amount of energy
kogti [31]

Answer:

solid

Explanation:

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