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Mama L [17]
3 years ago
10

When reactants are not used to make new substances, are they destroyed?

Chemistry
1 answer:
valkas [14]3 years ago
3 0

In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

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Which is a disadvantage of using chemical indicators? they are expensive to use. they measure ph directly. they must be selected
dexar [7]

Chemical indicators are the chemical reagents that show the change in reaction by changing color. Chemical indicators must be chosen with a narrow pH range.

<h3>What are indicators?</h3>

Indicators are the solutions or the substances used for the qualitative and the quantitative measurement by a change in color because of the absence or the presence of the sample concentration.

The chemical indicators cannot detect the exact pH and should be used with a narrow range of pH.

Therefore, option C. the narrow range of pH is the disadvantage of chemical indicators.

Learn more about chemical indicators here:

brainly.com/question/15114406

4 0
2 years ago
2. How many moles of carbon dioxide, CO2, are in a 22 gram sample of the compound?
kotykmax [81]
To find the amount of moles in a molecule you divide the grams of the substance by the molar mass.
molar mass of CO2 = 44.01 g
22g / 44.01 = 0.50 moles CO2
4 0
3 years ago
What is the reaction rate for a chemical reaction?
lakkis [162]
Some are essentially instantaneous, while others may take years to reach equilibrium. The Reaction Rate for a given chemical reaction is the measure of the change in concentration of the reactants or the change in concentration of the products per unit time.
8 0
3 years ago
Read 2 more answers
Write a RACE paragraph to make and defend a claim about how salinity and temperature impact ocean density .
djverab [1.8K]

Answer:

Explanation:

Girl. No one is about to write a paragraph for you. Research, collect information and attempt it on your own. We are here to help, not to do your work for you.

7 0
4 years ago
ygyugygygggygygg................................................................................................................
Ahat [919]

please try to keep questions acedemic related

it does no good for questions like this to be on here when others need help, try to keep your questions..

  - Partained to the particular subject
  - presented in the correct language and maner
  - understandable and with all the information needed

no hard feelings, though this question and answer will be deleted by moderators soon so just keep all that in mind ^^

8 0
2 years ago
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