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kotegsom [21]
3 years ago
14

Examine the reactants of the incomplete double-displacement reaction. 2NaCl + H2SO4 → __________. Which of the answer choices co

rrectly predicts the product of the double-displacement reaction?
A.Na2SO4Cl + H2
B.2NaClH2SO4
C. Na2SO4 + 2HCl
D.2Na + Cl + H2 + SO4
Chemistry
1 answer:
saw5 [17]3 years ago
8 0
C because the sodium (cation) bonds with the sulphate (anion) and then chloride (anion) and hydrogen (acting as a cation) bond together
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Please help me on this question
Nata [24]

Answer:

B

Explanation:

That seem the most locigal to me

3 0
3 years ago
Which statement explains what happens as magma rises inside a volcano
sp2606 [1]

Answer:

Pressure decreases

Explanation:

7 0
3 years ago
Read 2 more answers
A pure substance which can only be separated into two or more simpler substances using chemical changes is called
rosijanka [135]

Answer: Compound . Chemical reactions can divide elements into simpler substances, but they cannot separate elements into simpler substances. Physical or chemical characteristics of substances can be categorised.

Compounds and elements can be created from pure substances. A chemical reaction is required to break down pure substances (elements and compounds) into their component atoms or elements. This is known as the chemical separation process. Physical separation of pure substances is impossible.

Explanation:

What makes something pure substance?

One element or a small number of related compounds make up pure substances. Mixtures are assemblages of many components. Mixtures of two or more substances (or elements) that cannot be visually distinguished from one another are referred to as homogeneous mixtures.

What sort of compound would that be?

A substance made up of two or more components is called a compound. Table salt, water, and carbon dioxide are a few examples of compounds

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7 0
1 year ago
Two moles of a monatomic ideal gas are contained at a pressure of 1 atm and a temperature of 300 K; 34,166 J of heat are transfe
anygoal [31]

Answer:

Final temperature is 302 K

Explanation:

You can now initial volume with ideal gas law, thus:

V = \frac{n.R.T}{P}

Where:

n are moles: 2 moles

R is gas constant: 0,082 \frac{atm.L}{mol.K}

T is temperature: 300 K

P is pressure: 1 atm

V is volume, with these values: <em>49,2 L</em>

The work in the expansion of the gas, W, is: 1216 J - 34166 J = <em>-32950 J</em>

This work is:

W = P (Vf- Vi)

Where P is constant pressure, 1 atm

And Vf and Vi are final and initial volume in the expansion

-32950 J = -1 atm (Vf-49,2L) × \frac{101325 J}{1 atm.L}

Solving: <em>Vf = 49,52 L</em>

Thus, final temperature could be obtained from ideal gas law, again:

T = \frac{P.V}{n.R}

Where:

n are moles: 2 moles

R is gas constant: 0,082 \frac{atm.L}{mol.K}

P is pressure: 1 atm

V is volume: 49,52 L

T is final temperature: <em>302 K</em>

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I hope it helps!

4 0
3 years ago
Which of the following is a heterogeneous mixture
jeka57 [31]
Soil. 
Heterogeneous means is can be separated and soil can be taken apart and separated according to its contents. (Rocks, dirt, grass). <span />
7 0
3 years ago
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