When a candle burns what form of energy does the chemical energy in the candle change

1 answer:

soldier1979 [14.2K]3 years ago

8 0

The energy transforms from chemical energy to heat and light energy. Because when the candle burns a chemical reaction occurs, and produces heat and light.

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how does atomic radius change as you move down a group/family and as you move across a period/row on the periodic table? what ca

Juliette [100K]

When going down a group the no of orbits increases. That is n value increases (n=principle quantum number). When the number of atomic orbitals increases, the radius gradually increases. (going down the group means the number of obits that electrons can fill will increase)

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3 0

2 years ago

According to the molecular orbital (mo) treatment of the no molecule, what are the bond order and the number of unpaired electro

mojhsa [17]

Attached is the MOT of NO molecule.

1. Bond order is calculated is $\frac{\text{number of e- in bonding orbital - number of e- in antibonding molecular orbital }}{2}$

In present case, number of e- in bonding orbital = 6
number of e- in anti-bonding orbital = 1
∴ Bond-order = $\frac{\text{6-1 }}{2}$ = 2.5

2. From the attached figure, it can be seen that NO has one unpaired electron in π* orbital.

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2 years ago

Which of the following are elements nd which are compounds H2,HCI,Na,Al2O3,H2O

stepan [7]

H2-element
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Na-element
Al2O3-compound
H2O-compound

6 0

3 years ago

How many electrons does calcium hace?

Alja [10]

The number of electrons is 20. hope this helps

4 0

2 years ago

Please explainnnnnnnnnn

zysi [14]

The answer is 15g
The mass of a substance when given the density and volume can be found by using the formula
Mass = Density x Volume
From the question
Density of chloroform=1.5 g/ml
Volume=10mL
We have
Mass=1.5x10
We have the final answer as
15g

5 0

2 years ago

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