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3 years ago

Which of the following is a product when Na2O and H2O react together? (2 points)

Chemistry

2 answers:

EleoNora [17]3 years ago

8 0

Answer : The correct option is, (c) NaOH

Explanation :

Synthesis reaction : It is chemical reaction in which two or more reactants react together to form a single compound or a product.

$A+B\rightarrow AB$

For example : Formation of sodium chloride salt from sodium and chlorine.

The balanced chemical reaction will be,

$Na_2O+H_2O\rightarrow 2NaOH$

This reaction is a synthesis reaction.

Hence, the product form in this reaction is, NaOH.

TiliK225 [7]3 years ago

5 0

The correct answer is NaOH

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What type of experiment did the student in the passage perform?

Angelina_Jolie [31]

Answer:

controlled

Explanation:

awnser

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3 years ago

Lars is balancing equations with his study group. He is unsure about one equation because each member of the study group came up

Stells [14]

Answer:

3Ca(OH)2 + 2H3PO4 → Ca3(PO4)2 + 6H2O

Explanation:

This a proper way to balance the equation:

- Count the OH from the base (2)

- Count the H from the acid (3)

We can make 2 molecules of H₂O but we still have one more H

H₃PO₄ → dissociates in → 3H⁺ + PO₄³⁻

Ca(OH)₂ → dissociates in → Ca²⁺ + 2OH⁻

So, to form the salt, you must have 3 Ca²⁺ to react with 2 (PO₄³⁻) to make global charge of +6/-6

Therefore, if you have 3 Ca in the salt, you may have 3 Ca in the base.

So, if you have 2 phosphate in the salt, you must have 2 PO₄³⁻ in the acid.

Now you have 6 protons in the acid (6H) and 6 (OH) in the base; in conclussion you can make 6 H₂O.

Finally the ballance equation is:

3 Ca(OH)₂ + 2 H₃PO₄ → Ca₃(PO₄)₂ + 6H₂O

8 0

3 years ago

Read 2 more answers

How to calculate magnitude of k

olasank [31]

Use Arrhenius equation:
k = A*exp(-Ea/RT)
We have:
1.35x10^2/s = A*exp(-85600/(8.314*298.15))
or: A = 1.342x10^17/s
It is a piece of cake to calculate:
k = 1.342x10^17*exp(-85600/(8.314*348.15))
= 1.92x10^4/s

6 0

3 years ago

PLEASE HELP ITS MAJOR

Charra [1.4K]

Answer:

solid, liquid

Explanation:

solid liquid and gas are the three most common states of matter, my best guessstimation is that solid is the ¨normal form¨ with you having to then heat it up to get to gas or, change it to liquid... even though most of the earth is liquid soo it could also be liquid try your best and think it over

3 0

2 years ago

Read 2 more answers

Give the empirical formula for C↓8H↓8

mr_godi [17]

Answer:

Empirical formula of C₈H₈ = CH

Explanation:

Data Given:

Molecular Formula = C₈H₈

Empirical Formula = ?

Solution

Empirical Formula:

Empirical formula is the simplest ration of atoms in the molecule but not all numbers of atoms in a compound.

So,

tha ration of the molecular formula should be divided by whole number to get the simplest ratio of molecule

C₈H₈ Consist of Carbon (C), and Hydrogen (H)

Now

Look at the ratio of these two atoms in the compound

C : H

8 : 8

Divide the ratio by two to get simplest ratio

C : H

8/8 : 8/8

1 : 1

So for the empirical formula is the simplest ratio of carbon to hydrogen 1 : 1

So the empirical formula will be

Empirical formula of C₈H₈ = CH

4 0

3 years ago