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Nitella [24]
3 years ago
6

Evaporation causes what?

Chemistry
2 answers:
storchak [24]3 years ago
8 0

Answer:

Evaporation is when water becomes a vapor or a gas. It helps the surface of the Earth from getting too hot and causes the Earths natural greenhouse effect. Hopes this helps! <3

d1i1m1o1n [39]3 years ago
6 0

Answer:

Evaporation is when liquid water droplets become water vapor, a gas.

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What is the total number of moles represented by 20 grams of CACO3
Nutka1998 [239]

Answer:

B. 0.2.

Explanation:

  • We can use the relation:

<em>n = mass/molar mass</em>

mass of CaCO₃ = 20 g, molar mass of CaCO₃ = 100.0869 g/mol.

<em>∴ n = mass/molar mass = </em>(20 g)/(100.0869 g/mol) <em>= 0.1998 ≅ 0.2 mol.</em>

<em></em>

<em>So, the right choice is: B. 0.2.</em>

8 0
3 years ago
Below is a picture of two blocks made of different materials. Block A Block B grams grams If Block A is located on the Moon and
AURORKA [14]

Answer:

A

Explanation:

this is because density is the mass per unit volume of an object

4 0
2 years ago
What causes differences in air pressure
shtirl [24]
Unequal heating of the atmosphere
5 0
3 years ago
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6. A student is using colored beads to make a model of aluminum sulfate, Al2(SO4)3. Aluminum atoms are represented by blue beads
avanturin [10]

Answer:

H. 2 blue, 3 yellow, and 12 green

Explanation:

Aluminium atoms (Al) = Blue Beads

Oxygen Atoms (O) = Green Beads

Sulfur (S) = Yellow beads

From the compound Al2(SO4)3, the number of atoms present are;

Al = 2

S = 3

O = 12

This means the model would contain;

2 Blue beads

12 Green beads

3 Yellow beads

The correct option is; H. 2 blue, 3 yellow, and 12 green

7 0
3 years ago
Which metal can replace another metal in a reaction?
deff fn [24]

Answer:

O A. A metal higher on the activity series list will replace one that is

lower.

4 0
3 years ago
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