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sladkih [1.3K]
3 years ago
12

Catherine has some seawater. She wants to separate pure water from the seawater.

Chemistry
2 answers:
Vikentia [17]3 years ago
8 0
Answer:

water can be separated from salt solution by simple distillation. This method works because water has a much lower boiling point than salt. When the solution is heated, the water evaporates. It is then cooled and condensed into a separate container.

This can be distillation/evaporation.
expeople1 [14]3 years ago
4 0

Answer:

the change is evaporation

Explanation:

the water heats up at the surface of the water and evaporates

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How many grams of water are produced if we react 3 moles of hydrogen with 3 moles of oxygen?
Thepotemich [5.8K]

Answer:

About 60 grams

Explanation:

The balanced equation of the reaction is given as;

2H2(g) + O2(g) → 2H2O(l)

From the equation;

2 mol of H2 reacts with 1 mol of O2

3 mol of H2 would require 3/2 mol of O2 (considering the 2:1 ratio)

The limiting reactant is H2 as it would be used up before H2. It determines the amount of product that would be formed.

2 mol of H2 produces 2 mol of H2O

3 mol of H2 would produce 3 mol of H2O (Considering the 1 : 1 ratio)

Converting moles to mass;

Mass = Molar mass * Number of moles

Mass = 18 * 3 = 54 g

The correct option is; About 60 grams

4 0
2 years ago
which energy source do you think has or could have the greatest positive impact on earth? explain your answer
wel

Answer:

All energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions

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2 years ago
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Describe the relationship between gravitational force and distance<br> as shown in the diagram.
aev [14]

Answer:

as you move away from a planet the gravitational force gets weaker. just think, if you get close towards a sun then the gravitational force will be stronger.

3 0
3 years ago
Hey do you guys have any ideas for a science fair project
Ierofanga [76]
You could do how different liquids affect plant growth. Take 3 SAME plant seeds and plant them in the SAME environment. For plant A use juice, for plant B, use milk, and for planting C, use coffee.
3 0
2 years ago
How is the strength of an acid affected by the number of hydrogen ions it contains​
adell [148]

More the no. of hydrogen ions more is the solution acidic.

pH means the power of hydrogen that determines the concentration of hydrogen ions or the level of acidiy or basicity of a solution.

so more the hydrogen ions more will be the Power of Hydrogen (pH) and thus more wil be the acidity.

8 0
2 years ago
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