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Fudgin [204]
3 years ago
13

Which of the following happened first?

Chemistry
2 answers:
Liono4ka [1.6K]3 years ago
7 0
What do you mean which of the following happened first. You have to give the example
Alexxandr [17]3 years ago
4 0
Im sorry ma'am or sir you need to be more specific


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Question 3
Dmitrij [34]

Answer:

snow and very low temperatures are predicted for tomorrow.

Explanation:

snow and very low temperatures are associated with average weather condition of a place thus making it a statement about climate.

4 0
3 years ago
If 225 grams of propane are burned in the presence of 125 grams of oxygen, how many grams of water should be expected?
Travka [436]
150 grams of water because if 225 grams of propane are burned with 125 grams of oxyegen then there will be 150 grams of water

5 0
2 years ago
2HCl+Ca(OH)2⟶CaCl2+2H2O
RUDIKE [14]
Isn’t it just 3 mols?
5 0
2 years ago
Compound formula: MgCl2
umka2103 [35]

Answer:

please where are the questions and also make your questions clear.

7 0
2 years ago
Read 2 more answers
How much potassium chloride, KCI, is produced during the decomposition of 100.0 grams of potassium chlorate KCIO3? Please show s
Ne4ueva [31]
Answer: the reaction will produce 15.3 g of
KCl.

explanation:
1. write the balanced equation.
2KClO
3
→
2KCl
+
3O
2

2. calculate the moles of
KClO
3
.
Moles of KClO
3
=
25.0
g KClO
3
×
1 mol KClO
3
122.55
g KClO
3
=
0.2046 mol KClO
3

3. calculate the moles of
KCl
.
Moles of KCl
=
0.2046
mol KClO
3
×
2 mol KCl
2
mol KClO
3
=
0.2046 mol KCl

4. calculate the mass of
KCl
.
Mass of KCl
=
0.2046
mol KCl
×
74.55 g KCl
1
mol KCl
=
15.3 g KCl
4 0
3 years ago
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