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IceJOKER [234]
3 years ago
7

If you could help it would be awsome!!!!!

Chemistry
2 answers:
n200080 [17]3 years ago
8 0

Answer:

1. 2 and 1=2

2. 2 and 1=2

3. 2 and 1=2

4. 4 and 1=2

5. 2=2 and 1

6. 2 and 3=2

7. 2=4 and 1

8. 3 and 1 =2

MArishka [77]3 years ago
3 0

Answer:

1. _2_H2 + ___ O2 → _2_ H2O

2. _2_ Mg + ___ O2 → _2_ MgO

3. _2_ Li + ___ F2 → _2_ LiF

4. _4_ K + ___ O2 → _2_ K2O

5. _2_ H2O2 → _2_ H2O + ___ O2

6. _2_ Al + _3_ Cl2 → _2_ AlCl3

7. _2_ Ag2O → _4_ Ag + ___ O2

8. _3_ H2 + ___ N2 → _2_ NH3

Explanation:

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Trace amounts of sulfur (S) in coal are burned in the presence of diatomic oxygen (O2) to form sulfur dioxide (SO2). Determine t
Mashcka [7]

Answer:

0.99 kg O₂

1.9 kg SO₂

Explanation:

Let's consider the reaction between sulfur and oxygen to form sulfur dioxide.

S + O₂ → SO₂

The mass ratio of S to O₂ is 32.07:32.00. The mass of oxygen required to react with 1 kg of sulfur is:

1 kg S × (32.00 kg O₂/32.07 kg S) = 0.998 kg O₂

The mass ratio of S to SO₂ is 32.07:64.07. The mass of sulfur dioxide formed when 1 kg of sulfur is burned is:

1 kg S × (64.07 kg SO₂/32.07 kg S) = 1.99 kg SO₂

3 0
3 years ago
Which of the following is an example of erosion?
Drupady [299]

Answer:

Glaciers moving rocks and soil through a valley

Explanation:

The definition of Erosion is "the process of eroding or being eroded by wind, water, or other natural agents". Which in turn means the movement of glaciers is causing erosion on the local valley.

6 0
3 years ago
Read 2 more answers
What is true of a compound? . a. It does not retain the properties of the substances that make it up. b. It retains the properti
LekaFEV [45]
A. It does not retain the properties of the substances that make it up
8 0
3 years ago
Use the value of the Avogadro constant (6.02 × 1023 mol–1) to calculate the total number of atoms in 7.10 g of chlorine atoms. (
kolbaska11 [484]

The total number of atoms in 7.10g of chlorine is 1.204 × 10²³atoms.

HOW TO CALCULATE NUMBER OF ATOMS:

  • The number of atoms in a substance can be calculated by multiplying the number of moles in that substance by Avogadro's number as follows:

  • no. of atoms = no. of moles × 6.02 × 10²³ mol-¹

  • The number of moles in 7.10g of Cl is calculated as follows:

no. of moles = mass ÷ molar mass

no. of moles = 7.10g ÷ 35.5g/mol

no. of moles = 0.2mol

no of atoms = 0.2mol × 6.02 × 10²³

no. of atoms = 1.204 × 10²³atoms.

  • Therefore, the total number of atoms in 7.10g of chlorine is 1.204 × 10²³atoms.

Learn more: brainly.com/question/15488332?referrer=searchResults

6 0
2 years ago
Is it called when a substance enters a gaseous phase without boiling?
Helen [10]

Answer:

its called sublimation

3 0
3 years ago
Read 2 more answers
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