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shepuryov [24]
3 years ago
10

The chemical force for which of the following ions is directed into the cell? The chemical force for which of the following ions

is directed into the cell? calcium only potassium only both sodium and calcium sodium only both potassium and sodium
Chemistry
1 answer:
Over [174]3 years ago
5 0

Answer:

Both sodium and calcium.

Explanation:

The membrane potential is maintained inside and outside of the cell due to the unequal distribution of the different ions. This membrane potential difference is important for the generation of action potential.

The resting membrane potential is around +30 mV. This is due to the presence of potassium ions. The sodium and calcium ions must enter in the cell to change this membrane potential and generates the action potential in the body.

Thus, the correct answer is option (3).

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Ome fire extinguishers contain liquid carbon dioxide Suggest how carbon dioxide​
melisa1 [442]

Answer:

The CO2 Extinguisher Cannisters contain carbon dioxide in liquid form, and when the extinguisher is let off the liquid is released into the air neutralising the oxygen that the fire is feeding on, disabling the fires ability to spread.

8 0
3 years ago
starting with methane ,name all the steps and write the equations involved in tetrachlorination.Remember all arrows sharing move
anygoal [31]

Answer:

See Explanation and image attached

Explanation:

Methane is an alkane. The commonest chemical reaction that alkanes undergo is substitution. During a substitution reaction, one or more atoms of hydrogen is/are replaced in the alkane.

In methane, in the presence of sunlight and molecular chlorine gas, a homolytic fission of Cl2 occurs to yield chlorine radicals in an initiation step.

The propagation steps involve reaction of the methane with chlorine radicals. Certain intermediates continue to be formed along the way until the tetrachlorination product is finally obtained.

4 0
3 years ago
A___________ consists of a mixture of graphite powder (a form of carbon) and clay that is baked and hardened and encased in wood
Harlamova29_29 [7]

Answer:

A_____PENCIL______ consists of a mixture of graphite powder (a form of carbon) and clay that is baked and hardened and encased in wood or paper. a. silverpoint b. pencil c. charcoal d. chalk e. paste

Explanation:

A pencil is a writing material, where the graphite is what gives the black color to the writing stroke.

5 0
3 years ago
Write the name and formula of the compound made of magnesium and fluorine
Alexxx [7]

Answer:

Name : Magnesium Fluoride

Formula : MgF2

Explanation:

Give me brainliest

8 0
3 years ago
How many oxygen molecules are needed to make 10 carbon dioxide molecules according to the following balanced chemical equation?
11Alexandr11 [23.1K]
<h2 /><h2 /><h2>answer.</h2>

five oxygen molecules

step by step explanation.

according to the equation,one molecule of oxygen is enough to react with two carbon molecules thus 10 carbon molecules need 5oxygen molecules

6 0
3 years ago
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