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lesantik [10]
4 years ago
9

URGENT!!!!*****

Chemistry
1 answer:
MatroZZZ [7]4 years ago
4 0
Chemical should be the answer hope I helped
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What would changing the number of electrons in a atom change
aksik [14]

Answer:

The mass of the atom will change

Explanation:

The mass of the atom will alter if the changing the amount of electrons in an atom charge would result in being positively or negatively charged  (Correct me if I'm incorrect sorry If I got this wrong)

3 0
3 years ago
HOW TO KEEP YOU'RE IMUNE SYSTEM HEALTY 5 QUESTIONS<br><br><br><br> NO LINKS
Ludmilka [50]

Answer:

1= wash your hands

2 Eat a diet high in fruits and vegetables.

3 Exercise regularly.

4 Maintain a healthy weight..

5 Get adequate sleep.

6 Take steps to avoid infection, such as washing your hands frequently and cooking meats thoroughly.

Explanation:

6 0
2 years ago
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Select the reagent that will separate the pairs of ions listed.
daser333 [38]

1 - a, 2-b, 3-d, 4 - e

<u>Explanation:</u>

<u></u>A g^{+} \text {and } A l^{3+} - Separated by 6M HCl

Silver and aluminum ions can be separated using the acid, 6M HCl.

C u^{2+} \text { and } C a^{2+}- Separated by H₂S

Copper and Calcium ions can be separated by the reagent hydrogen sulfide, H₂S.

M g^{2+} \text { and } K^{+} - Separated by (NH₄)₂HPO₄ in NH₃

Magnesium and Potassium ions can be separated by the reagent Ammonium hydrogen phosphate in ammonia.

N i^{2+} \text { and } C o^{2+}- cannot be separated

Nickel and Cobalt ion cannot be separated by the reagents given at all.

8 0
3 years ago
What are the products of the following combustion reaction?<br><br> 2C2H2(g) + 5O2(g) →
kakasveta [241]
A combustion reaction of an  will generally produce CO2 and H20 -- carbon dioxide and water and/or an oxide

looking at the combustion material C2H2, you know that the end products will be CO2 and H20, so the question is how much of each will you get

well, look at the total amount of carbon atoms, 2 C2, which means a total of 4 carbon atoms in this reaction, since only CO2 has carbon atoms, that means there must be 4 CO2 as an end product and 4 CO2 will use up 4 of 5 O2 molecule leaving only 1 O2 molecule for the H2 reaction.

now O2 has a total of 2 oxygen molecules whereas H20 has only a single oxygen molecule, hence the end product must have 2 H20

check that the H atoms balance out on both sides
4 0
3 years ago
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What causes warm air to rise?
8090 [49]
A. The fact that it's less dense than cold air.
8 0
3 years ago
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