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3 years ago

The summer is caused by __________.

Chemistry

1 answer:

Shkiper50 [21]3 years ago

5 0

Answer:

direct sunlight striking earth

Explanation:

The seasons are caused by Earth's axis of rotation. The poles are farther away from the direct beam of sunlight, so they are normally much colder than the equator.

When a part of the globe is in direct sunlight, it gets hotter, logically, and we call that season summer.

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How do I solve this?

Xelga [282]

Answer:

Explanation:

When you divide exponentials, you subtract the powers. For the numbers infront, just use a basic calculator for.

7.95/6.02 = 1.32

10^22/10^23 = 10^-1

1.32 x 10^-1 is your answer

7 0

2 years ago

2 A certain gas of 25 g at 25°c and 0.65 atm occupies a volume of 23.52L Determine the molecule mass of the gas.

denpristay [2]

Answer:

${ \bf{PV= \frac{m}{M} RT}} \\ \\ { \tt{(0.65 \times 23.52) = \frac{25}{M} \times 0.081 \times (25 + 273)}} \\ \\ M = 39.5 \: g$

8 0

3 years ago

Why are metals good conductors of heat?

loris [4]

Answer: A. The free-moving electrons transmit heat quickly.

Explanation:

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2 years ago

Write the molecular formula for the following compound.

Sholpan [36]

Answer : The molecular formula of the compound is, $C_8H_9O_3N$

Explanation :

Molecular formula : It is the representation of substance by the symbols and it denotes the number of atoms of each element present in the compound.

Now count the number of carbon, hydrogen, nitrogen and oxygen atoms present in the given compound.

As we see that in the given compound, there are 8 atoms of carbon element, 3 atoms of oxygen element, 1 atom of nitrogen element, 9 atoms of hydrogen element.

Thus, the molecular formula of the compound will be $C_8H_9O_3N$

7 0

2 years ago

After a covalent bond has stabilized an atom, the atom will have

Dafna1 [17]

Answer:

The atom have a full valence electron shell.

Explanation:

My question is that why covalent bonds take place?

Every atoms tends to from bond with another atoms in order to get nearest electronic configuration of nobel gases. They become stable when their valence shell become complete. So when covelant bond forms between atoms, share electrons to each other and stabilize themselves.

5 0

2 years ago

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