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zubka84 [21]
3 years ago
11

Digesting a candy bar is a physical change or chemical change? why?​

Chemistry
2 answers:
Slav-nsk [51]3 years ago
7 0

Answer:

Chemical Change

Explanation:

Because it dissolves with the help of saliva , then into stomach and excreted in a different form

aleksley [76]3 years ago
6 0

Answer:

Yess its a chemical change

:*

Explanation:

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Which of the following elements has the largest electronegativity? A) Bismuth B) Nitrogen C) Potassium D) Arsenic​
algol [13]
Hey :)


The answer is B) Nitrogen, which has an electronegativity of 3.04

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6 0
3 years ago
HELP ASAP!!!
Alborosie

Answer:

The law of conservation of mass states that mass cannot be created or destroyed only transfered. So when a size change takes place the mass is being transfered into something else. During a state change the mass is being transfered into another state of matter. When a substance dissolves into another liquid the mass is still their just into another state.

Explanation:

6 0
3 years ago
How many moles of hydrogen are needed to completely react with 2 moles of nitrogen
Natali5045456 [20]
Assuming ammonia is the product of this reaction:

N2+3H2--->2NH3

2 mole N2 * (3 mol H2)/(1 mol N2)= 6 mol H2

You would need 6 mol of hydrogen gas to completely react with 2 mol of nitrogen. 
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3 years ago
Koi Hain Jo bat kr le mujh se :/​
Studentka2010 [4]

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7 0
3 years ago
Read 2 more answers
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Vadim26 [7]

Answer:

Explanation:

Discussion

When Pressure increases  equilibrium shifts to the side with the smallest number of moles. But which side is that?

N2(g) + 3H2(g) ⇌ 2NH3(g)

The left side has 1 mol of nitrogen (N2) and 3 moles of Hydrogen = 4 mols

on the left side.

The right side has 2 mols of NH3 = 2 mols on the right.

Conclusion: You tell the number of mols by the Balance numbers to the left of each chemical in an equation.

Since the left side N2 + 3H2 = 4 mols, the equilibrium does NOT shift left.

2NH3 is only two mols.

The equilibrium shifts Right

Answer

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7 0
2 years ago
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