CHEMISTRY HIGH SCHOOL

Define the law of conservation of charge and provide an example.Define opposite charges attract and like charges repel and provide an example.

Define Electricity along with an example.

Answers

Answer 1
Answer:

Answer:

Conservation of Charge is the principle that the total electric charge in an isolated system never changes. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved.

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The _____ rate is the number of particles that react in a given time to form products. a. le chantelier
b. reaction
c. dynamic
d. elementary

Answers

b. reaction rate is the answer
The correct ANWSER is b Mark me the brainliest anwser

How could you test the law of conservation of matter? ( No atoms can be created or destroyed when under physical or chemical change)

Answers

Answer:

By measuring the total mass of the matter before as well as after any physical or chemical change.

Explanation:

As mentioned, according to the law of conservation of matter, no atoms can be created or destroyed when under physical or chemical change.

Naturally, all the matters have some mass associated with it.

To verify the law of conservation of matter, at first, measure the mass of matter before it underwent any physical or chemical change. Then, again, measure the mass of the matter after the physical or chemical change.

Now, observe both the mass, both must be equal. This verifies the law of conservation of matter.

CuCl2 + 2NaNO3 mc023-1.jpg Cu(NO3)2 + 2NaCl What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl?

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The stoichiometric ratio of CuCl2 to NaCl is 1 is to 2. The stoichiometric ratio of 31.0 g CuCl2 is 26.95 grams of NaCl by converting the amount of CuCl2 to mole and multiplying by 0.5 and molar mass of NaCl.This amount is equal to 78.65% yield.

For every Pb+2 ion that is formed, how many Cl- ions are formed? (Refer to the reaction in the lesson above.) answer choices
1
3
2
4

Answers

2 is the right choice
hope it helps

Answer:

2 Works on OW 2021

Explanation:

How does an acid–base indicator react when placed in an acidic solution?It changes color.
It dissolves.
It increases the pH of the solution.
It releases hydroxide ions.

Answers

Answer: Option (a) is the correct answer.

Explanation:

An acid-base indicator is an indicator which changes color according to the pH of solution in which it is placed.

For example, phenolphthalein is an acid-base indicator.

Thus, we can conclude that out of the given options, an acid–base indicator react by changing color when placed in an acidic solution, is the correct option.
an indicator changes color when placed in an acidic solution

Is there a relationship between an elements atomic number and its first ionization energy (IE)?

Answers

yes, well kind of, as you travel across the a period  the first ionization energy increases). as you travel down a column the ionization energy decreases.  
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