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murzikaleks [220]
3 years ago
15

3.

Chemistry
1 answer:
Anastasy [175]3 years ago
7 0

Answer:

I think it's letter B

Explanation:

Hope it helps correct if I'm wrong

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How does oxidation differ from reduction
Dima020 [189]

Answer:

See the explanation below, please.

Explanation:

In redox reactions (oxide reduction) the transfer of electrons between compounds occurs.

 In oxidation, electrons are lost (positive charge increases). Example:

Mg ---> Mg2 + + 2 e- (passes from Mg ° to Mg 2+)

On the other hand in the reduction, electrons are gained (negative charge increases or the positive one increases). Example:

Cl2 + 2e- ---> 2 Cl- + 2 e- (passes from Cl ° to Cl-)

6 0
3 years ago
4. A serving of cereal contains about<br> of protein<br> 9 mg<br> 9 g<br> 90 g<br> 9 kg
aleksandrvk [35]

Answer:

probably 90 g

Explanation:

7 0
3 years ago
Practice: How many protons, neutrons and electrons are in the following?
Nata [24]

Answer:

The answer to your question is below

Explanation:

When we have the number of an element followed by a number, that number is the atomic mass.

Atomic mass is the number of protons plus neutrons.

                              Protons                    Neutrons

Carbon-13                  6                            13 - 6 = 7

Chromium-51            24                          51- 24 = 27

Strontium-88             38                           88 - 38 = 50

Boron-10                     5                            10 - 5 = 5

6 0
3 years ago
Read 2 more answers
How many moles of helium are 8.84×10^24 atoms of He?
viva [34]

Answer:

14.77 mol.

Explanation:

  • It is known that every 1.0 mole of compound or element contains Avogadro's number (6.022 x 10²³) of molecules or atoms.

<u><em>Using cross multiplication:</em></u>

1.0 mole of He contains → 6.022 x 10²³ atoms.

??? mole of He contains → 8.84 x 10²⁴ atoms.

<em>∴ The no. of moles of He contains (8.84 x 10²⁴ atoms) </em>= (1.0 mol)(8.84 x 10²⁴ atoms)/(6.022 x 10²³ atoms) =<em> 14.77 mol.</em>

8 0
3 years ago
All scientists try to base their conclusions on?
Rama09 [41]
All scientists try to base their conclusions on data and measurements.
5 0
3 years ago
Read 2 more answers
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