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masha68 [24]
3 years ago
9

Which of the following is not a greenhouse gas

Chemistry
1 answer:
Vinil7 [7]3 years ago
4 0
A- water. It’s the only one that isn’t a gas
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Chemistry acids and bases
Ket [755]

Answer:

Imma just say acids have more acidity and bases have lower acidity...

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3 years ago
How much potassium chloride is needed to make 0.500 m solution with 1.50 L of water?
Andrew [12]

Answer:

55.9 g KCl.

Explanation:

Hello there!

In this case, according to the definition of molality for the 0.500-molar solution, we need to divide the moles of solute (potassium chloride) over the kilograms of solvent as shown below:

m=\frac{mol}{kilograms}

Thus, solving for the moles of solute, we obtain:

mol=m*kilograms

Since the density of water is 1 kg/L, we obtain the following moles:

mol=0.500mol/kg*1.50kg\\\\mol=0.75mol

Next, since the molar mass of KCl is 74.5513 g/mol, the mass would be:

0.75mol*\frac{74.5513g}{1mol}\\\\55.9g \ KCl

Regards!

4 0
3 years ago
Which of the following pH numbers are basic? (Choose 2)<br> 11<br> 5<br> 7<br> 9
timama [110]

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7 is the only basic number on a pH scale

8 0
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MYTH OR FACT? Eating disorders occur only in fernales. *
sdas [7]

Answer:

myth

Explanation:

3 0
3 years ago
Which water is most suitable to remove dirt in clothes well
8090 [49]

Answer:

Explanation:

The second best answer is likely well water. But it is possible that well water can be contaminated as well with soluble minerals.

See water would have salt in it which would make it hard to use.

River water could be containing dirt which would make washing hard to do.

Rain water is likely the best water to use.

4 0
3 years ago
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