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Alja [10]
3 years ago
15

Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition react

ions in the table.
Chemistry
2 answers:
Luda [366]3 years ago
8 0

Answer:

Hi! I need to talk to u asap

Explanation:

Sloan [31]3 years ago
8 0

Answer:

1

Explanation:

A decomposition reaction is a chemical reaction in which one product is decomposed to form two or more products. In chemistry, decomposition is primarily achieved by heating the substance at high temperature.

Chlorates normally are decomposed when they are reached at a significant high temperature and are normally used for oxidation purposes. In the given examples from the table:

Sodium chlorate is decomposed to Sodium chloride and oxygen. Potassium chlorate follow the same principle and so will Lithium.

So, the reaction becomes:

2LiClO₃ ----> 2LiCl + 3O₂

You can see that both Sodium chlorate (NaClO3) and Potassium chlorate (KClO3) gave exactly the same products. i.e. a chloride and oxygen.

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The theory of continental drift was widely unaccepted until scientists started using ________ the map the ocean floor.
Bumek [7]

Answer:

B. SONAR (Sound Navigation Ranging)

Explanation:

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4 0
3 years ago
Read 2 more answers
How do you calculate mass using density and volume?
skad [1K]
Example:

Mass = ?

Density = 25 g/mL

Volume = 5 mL

therefore:

d = m / V

25 = m / 5

m = 25 x 5

m = 125 g

hope this helps!

7 0
3 years ago
Calculate the molar mass of Co2
olga nikolaevna [1]

Answer:

44.01 g/mol

Explanation:

Add each elements atomic mass. For oxygen you will do that twice because their is two oxygens.

- Hope that helps! Please let me know if you need further explanation.

8 0
3 years ago
What is the main idea of the kinetic theory of heat?
Goshia [24]
 – liquids, solids or gases – are made up of atoms and molecules that are in constant motion.<span> The theory also states that collisions between atoms and molecules are elastic</span>
5 0
3 years ago
Sn + 2 H2SO4 → SnSO4 + SO2 + 2 H2O If 219.65 grams of SnSO4 are produced, how many moles of H2SO4 were reacted?​
anygoal [31]

Answer:

2.05moles

Explanation:

The balanced chemical equation in this question is as follows;

Sn + 2H2SO4 → SnSO4 + SO2 + 2H2O

Based on the above equation, 2 moles of H2SO4 reacted to produce 1 mole of SnSO4

However, the mass of SnSO4 produced is 219.65 grams. Using mole = mass/molar mass, we can find the number of moles of SnSO4 produced.

Molar mass of SnSO4 where Sn = 118.7, S = 32, O = 16

= 118.7 + 32 + 16(4)

= 150.7 + 64

= 214.7g/mol

mole = 219.65/214.7

mole = 1.023mol

Therefore, if 2 moles of H2SO4 reacted to produce 1 mole of SnSO4

1.023 mol of SnSO4 produced will cause: 1.023 × 2/1

= 2.046moles of H2SO4 to react.

8 0
3 years ago
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