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KiRa [710]
3 years ago
5

If anyone knows please help ! ASAP

Chemistry
1 answer:
xeze [42]3 years ago
4 0

Answer:

The answer is B

Explanation:

I know this because its right.

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Which elements are the most abundant in living organisms? Select all that apply.
Nonamiya [84]

Answer:

batata

Explanation:)

4 0
3 years ago
I need help ASAP please
Andrej [43]

525L

Explanation:

Given parameters:

Volume to Temperature ratio = 1.75

Temperature = 300k

Unknown:

Volume of the gas = ?

Solution:

We must carefully analyze and comprehend the detailed description of this experiment:

 It was suggest that the gas could expand or shrink without changing the pressure of the gas inside.

This implies that the pressure in the vessel is constant

This similar to the postulate of the Charles's law: The volume of a fixed mass of gas is directly proportional to the absolute temperature if the pressure is constant.

 Mathematically;

                 \frac{V1}{T1}  = \frac{V2}{T2}

V and T are the volume and temperature

 Now we can solve the given problem;

           \frac{V}{T}  = 1.75

Since temperature is given as 300K

 Input the variables:

           \frac{V}{300}  =  1.75

          V = 1.75 x 300 = 525L

learn more:

Boyle's law brainly.com/question/8928288

#learnwithBrainly

3 0
3 years ago
Which of the following types of fossils is most commonly associated with wood?
DanielleElmas [232]
Petrified fossils, they are made of wood that becomes petrified from pressure and lack of oxygen.
5 0
4 years ago
If 8.2 L of hydrogen gas at STP are produced in this<br> reaction, how many atoms of sodium react?
kati45 [8]

The reaction is;

2Na + 2H2O → 2NaOH + H2

Answer:

4.4 × 10^(23) atoms

Explanation:

The reaction is;

2Na + 2H2O → 2NaOH + H2

2 moles of Na produces 1 mole of H2 from the equation reaction.

Thus, since 8.2 L of hydrogen gas at STP are produced. And we know that at STP, 1 mole of a gas will have a volume of 22.4 L, and also, We know according to avogadro's number that, 1 mol = 6.02 × 10^(23) atoms, Thus;

8.2 L of H2 × (1 mole of H2/22.4 L) × (2 mole of Na/1 mole of H2) × (6.02 × 10^(23) atoms/1 mole of Na) = 4.4 × 10^(23) atoms

5 0
3 years ago
11) An alkene x undergoes on ozonglysis and
steposvetlana [31]

Answer:

1)mix them

2)monomers and they function correctly that's why

3)chemical reaction

4)it slowly makes simple and useful substances and wait for it to sell that way we can know whether it is saturated or not.

3 0
3 years ago
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