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ad-work [718]
3 years ago
5

The formula for a chemical reaction is given. 2Na + 2H2O → 2NaOH + H2 Which of the following describes this reaction? Group of a

nswer choices It is a reaction between two elements that results in two compounds. It is a reaction between two compounds that results in two elements. It is a reaction between a compound and an element that results in a different compound and element. It is a reaction between two elements that results in a compound and a different element.
Chemistry
1 answer:
professor190 [17]3 years ago
5 0
It is a reaction between an element and a compound that results in a different element and compound
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Tina drew an animal cell in her science notebook. What's wrong with the cell?
Lisa [10]

I know for certain, that chloroplast does not belong on that list, chloroplast only belongs inside of plant cells to produce energy required for the plant. I  am not sure about the era or er, but chloroplast does not belong.

Hope this helps, if not, comment below please!

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4 years ago
Where are the most active nonmetals located?​
Viktor [21]

Answer:definition group 17, halogens top right on the periodic table

Explanation:

I’m looking at it

5 0
3 years ago
A 30.00 mL sample of HBr was titrated using 0.1756 M NaOH. Determine the concentration of the HBr sample if 17.52 mL of NaOH was
postnew [5]

<u>Answer:</u> The concentration of HBr sample is 0.1025 M

<u>Explanation:</u>

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HBr

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=1\\M_1=?M\\V_1=30.00mL\\n_2=1\\M_2=0.1756M\\V_2=17.52mL

Putting values in above equation, we get:

1\times M_1\times 30.00=1\times 0.1756\times 17.52\\\\M_1=\frac{1\times 0.1756\times 17.52}{1\times 30.00}=0.1025M

Hence, the concentration of HBr sample is 0.1025 M

5 0
3 years ago
So anyone know the answer to this
abruzzese [7]

Answer:

Exosphere

Explanation:

it’s the furthest away from the earths surfest which would make it furthest away from earths center.

4 0
3 years ago
What is the concentration of a solution when 50.0 mL of 0.436 M NH ₄NO ₃ is diluted to a new volume of 250.0 mL
Blababa [14]

Answer:

0.0872 M

Explanation:

Use the equation M1V1 = M2V2

0.436(50.0) = (x)(250.0)

21.8 = 250x

0.0872 = x

3 0
3 years ago
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