Answer:
B. Coal
Explanation: Coal is mined to produce energy.
Answer:
3.45 moles Li contains 2.08
×
10
(to the power of)24 atoms
.
Explanation:
The relationship between atoms and moles is:
1 mole atoms
=
6.022
×
10
(to the power of)23
atoms
In order to determine how many atoms occupy a given number of moles, multiply the given moles by
6.022
×
10
(to the power of)23
atoms/mole
.
In the case of 3.45 moles lithium (Li):
3.45
mol Li
×
6.022
×
10
(to the power of)23 atoms Li/
1
mol Li
=
2.08
×
10
(to the power of)24
atoms Li rounded to three
The sodium-potassium pump (NaK) is very important for the function of the most cellular process in the body, It's responsible for the movement of the K ions into the cell and the movement of the Na ions outside the cell at the same time.
It's important for excitable cells such as a nerve cell, the pump helps it with transmitting pluses. It also important in controls cardiac contractions and control blood pressure. It plays an important role in maintaining the sodium and potassium balance in the body in the kidneys.So the Cell function will be affected badly if there was no sodium-potassium pump.
Ionic compounds are between metals and non metals, otherwise if it’s a nonmetal with a nonmetal it’s molecular
I would say Na. Oxygen has 2 valence electrons and when reacting with other molecules, the ones with the fullest or emptiest shells will react the least. Both H2 and Na are in the Alkali Metals in the first row, but since H2 has 2 molecules, it would use more oxygen than Ana
