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Verdich [7]
3 years ago
15

Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he is going to create

an experiment to find out if there is something better. What is his dependent variable?
A. amount of tissue
B. Kleenex
C. mass of the snots the tissue can hold
D. type of tissue
E. Justin
Chemistry
2 answers:
sergiy2304 [10]3 years ago
7 0
C. mass of the snot the tissue can hold
vladimir1956 [14]3 years ago
5 0

Answer: c

Explanation:

Dependent Variable is what you measure, he's measuring the amount of snot that can be held

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When silver nitrate reacts with copper, copper(II) nitrate and silver are produced. The balanced equation for this reaction is:
posledela

The question is incomplete, here is the complete question:

When silver nitrate reacts with copper, copper(II) nitrate and silver are produced. The balanced equation for this reaction is:

2AgNO_3+Cu\rightarrow Cu(NO_3)_2+2Ag

Suppose 6 moles of silver nitrate react. The reaction consumes___ moles of copper. The reaction produces __ moles of copper(II) nitrate and __ moles of silver.

<u>Answer:</u> The amount of copper metal reacted is 3 moles, amount of copper (II) nitrate produced is 3 moles and amount of silver metal produced is 6 moles.

<u>Explanation:</u>

We are given:

Moles of silver nitrate = 6 moles

For the given chemical reaction:

2AgNO_3+Cu\rightarrow Cu(NO_3)_2+2Ag

  • <u>For copper metal:</u>

By Stoichiometry of the reaction:

2 moles of silver nitrate reacts with 1 mole of copper metal

So, 6 moles of silver nitrate will react with = \frac{1}{2}\times 6=3mol of copper metal

Moles of copper reacted = 3 moles

  • <u>For copper(II) nitrate:</u>

By Stoichiometry of the reaction:

2 moles of silver nitrate produces 1 mole of copper(II) nitrate

So, 6 moles of silver nitrate will produce = \frac{1}{2}\times 6=3mol of copper(II) nitrate

Moles of copper(II) nitrate produced = 3 moles

  • <u>For silver metal:</u>

By Stoichiometry of the reaction:

2 moles of silver nitrate produces 2 moles of silver metal

So, 6 moles of silver nitrate will produce = \frac{2}{2}\times 6=6mol of silver metal

Moles of silver metal produced = 3 moles

Hence, the amount of copper metal reacted is 3 moles, amount of copper (II) nitrate produced is 3 moles and amount of silver metal produced is 6 moles.

6 0
3 years ago
What might a physicit choose to study?
AlekseyPX
Thermodynamics, Nuclear Physics, Quantum Physics, Astronomy and Astrophysics
7 0
3 years ago
Cuales son los compuestos químicos inorgánicos utilizados en la formación de huesos
Ilia_Sergeevich [38]

Answer:

Explanation:

?

5 0
3 years ago
What does Hess's law state about the total enthalpy change for a reaction?OA. It depends on the reaction pathway.B. It can only
Dimas [21]
<h2>Answer:</h2>

Option D is correct. It is independent of the reaction pathway.

<h2>Explanations:</h2><h2>What is Hess's law?</h2>

Hesslaw states that the enthalpy change of a reaction does not change regardless whether the reaction takes place in a single or multiple reaction pathways.

This shows that the total entalpy change of a reaction does not depend on the reaction pathway.

8 0
1 year ago
A substance undergoes a change. Which of the following indicates that the change
LekaFEV [45]

Answer:

change of color

Explanation:

when a substance undergoes a change of color it is an indication that it was chemical

5 0
3 years ago
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