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alexgriva [62]
3 years ago
13

What are the 4 major macromolecules

Chemistry
1 answer:
ANEK [815]3 years ago
8 0
Carbohydrates
Lipids
Protein
Nucleic acids
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1. Which of the following is a combination reaction?
DaniilM [7]

Answer:

The answer to your question is: letter A

Explanation:

A combination reaction is when there are two reactants that gives only one product.

a. 2SO2 + O2—> 2SO3                          This is a combination reaction,

                                                               2 reactants gives one product.

b. Zn + Cu(NO3)2–>Zn(NO3)2 + Cu     This is not a combination reaction,

                                                                it's a single replacement reaction.

c. 2H2O2–> 2H2O+O2                          This is a decomposition reaction

d. AgNO3 + NaCl → AgCl+NaNO3        THis is a double replacement reaction.

8 0
3 years ago
Why is Adam Driver hot? like I want him to step on me :)
3241004551 [841]

Answer:

AWWWWWWWWWWWWWWWW SOOO NICEEE

5 0
3 years ago
If you are given a 0. 31 g piece of sodium metal to react with water, how many moles of hcl would it take to neutralize the sodi
Sphinxa [80]

The moles of HCl to neutralize the sodium hydroxide produced is<u> 0.0135 mole.  </u>

Neutralization or neutralization is a chemical response wherein an acid and a base react quantitatively with each other. In a reaction in water, neutralization outcomes in there being no excess of hydrogen or hydroxide ions gift in the answer.

<u>calculation:-</u>

<u />

2Na + 2H₂O  -----> 2NaOH + H₂

2 mol or 46g of Na produces 80 grams of NaOH

∴ 0.31 g of Na will produce = 80/46 × 0.31

                                              =  0.54 gram of NaOH.

mol of NaOH = 0.54/40

                      = 0.0135

Since both Hcl and NaOH have the same valance factor,

1 mole NaOH is needed to neutralize 1 mol HCl

∴ 0.0135 mole of NaOH will need = 0.0135 mole of HCl

mass = 0.0135 × 36.5

         =<u> 0.493 grams of HCL.</u>

Learn more about neutralizing here:-brainly.com/question/23008798

#SPJ4

4 0
1 year ago
The atomic number is the same as the number of ________.
Zanzabum

Answer:

number of electrons

Explanation:

(happy to help)

5 0
3 years ago
Hi guys how is it going please dont report !
Simora [160]

Answer:

I'm doing fine

Explanation:

4 0
3 years ago
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