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Oksanka [162]
3 years ago
10

The diagram below shows Earth, four different positions of the Moon, and the direction of incoming sunlight.

Chemistry
1 answer:
Allisa [31]3 years ago
7 0

Answer:

im 99% sure its 2

Explanation:

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30. How many types of chemical reactions are there?
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Answer:

B. Five

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12.
Veronika [31]

Answer:

Nonbonding pairs of electrons.

Explanation:

Both oxygen atoms in the diatomic molecule have two nonbonding pairs. This results in the oxygen molecule having a planar geometric shape. This is because nonbonding pairs repel each other are significant in determining the shape of a molecule.

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What atom has 35 protons and 47 neutrons ?
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Bromine

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How many mL of 3.0M HCl are needed to make 300.0 mL of a 0.10M HCl?
nalin [4]

Answer:

V₁  = 10 mL

Explanation:

Given data:

Initial volume of HCl = ?

Initial molarity = 3.0 M

Final molarity = 0.10 M

Final volume = 300.0 mL

Solution:

Formula:

M₁V₁  =  M₂V₂

M₁ = Initial molarity

V₁  =  Initial volume of HCl

M₂ =Final molarity

V₂ = Final volume

Now we will put the values.

3.0 M ×V₁  =  0.10 M×300.0 mL

3.0 M ×V₁  = 30 M.mL

V₁  = 30 M.mL /3.0 M

V₁  = 10 mL

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3 years ago
Please help me i will give brain list​ tap the question
mr_godi [17]

Answer:

molecular formulas of the hydrocarbons

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