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statuscvo [17]
3 years ago
13

True or false condensation occurs when liquid is converted to a solid

Chemistry
2 answers:
Snowcat [4.5K]3 years ago
5 0

Answer:

If you cool a gaseous substance, you can watch the phase changes that occur. The phase changes are: Condensation — going from a gas to a liquid. Freezing — going from a liquid to a solid.

<u>Do what you please with that answer.</u>

ikadub [295]3 years ago
4 0

Answer:

False.

Explanation:

When a liquid turns into a solid it is called melting, what you are referring is when gas turns into liquid.

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How many grams of magnesium oxide forms when 8.0g of magnesium are burned?
AfilCa [17]
Magnesium burns with oxygen to give magnesium oxide based on the following reaction:
2M<span>g</span>+<span>O<span>2 </span></span>........> 2Mg<span>O<span>(s)</span></span>+<span>energy
</span>From the periodic table:
molecular mass of magnesium = 24.3 grams
molecular mass of oxygen = 16 grams

From the reaction:
2 x 24.3 = 48.6 grams of magnesium are required to produce 2(24.3+16) = 80.6 grams of magnesium oxide.
We can know the amount of magnesium oxide produced from 8 grams of magnesium by simply doing cross multiplication as follows:
amount of magnesium oxide = (8 x 80.6) / 48.6 = 13.267 grams

7 0
3 years ago
Is carbon dioxide a pure substance
iVinArrow [24]

Answer:

It is not a pure substance.

6 0
3 years ago
How many nonreactive elements are there in the periodic table??
pochemuha

Answer:

6

Explanation:

All noble gases are nonreactive, these include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).

5 0
3 years ago
Read 2 more answers
Calculate AH°rxn from AH°7 values (use table in textbook appendix) a) Cl2 (g) + 2 Na (s) -› 2 NaCl (s) EITHER -411.1kJ/mol b) 2
MrMuchimi

To find AH°rxn, we use the following equation:

What we're going to do is to sum the enthalpy of the products and then substract with the enthalpy of the reactives:

As you can see, we need to multiply by the coefficients of the reaction.

Now, just replace the values of the table:

So the answer is -822.2kJ/mol.

For b:

Now, just replace the values of the table:

The answer for b is -1036kJ/mol.

4 0
1 year ago
Select the most likely product for this reaction: upper a g upper n upper o subscript 3 (a q) plus upper n a upper o upper h (a
Mamont248 [21]

One of the most likely products for the reaction would be Ag_2O

<h3>Chemical reactions</h3>

The reaction between AgNO_3 and NaOH yields 3 products which are Ag_2O (a precipitate), NaNO_3, and H_2O as shown by the equation below:

2 AgNO_3 + 2 NaOH --- > Ag_2O + 2 NaNO_3 + H_2O

One of the products precipitates out of the solution to give the reaction a precipitation reaction look.

More on precipitation reaction can be found here: brainly.com/question/24158764

#SPJ4

5 0
2 years ago
Read 2 more answers
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