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Bezzdna [24]
3 years ago
12

What are the two rules for deciding the number of significant digits in the answer to a calculation?

Chemistry
1 answer:
8090 [49]3 years ago
8 0
<span>(1) For multiplication and division, you determine the number of significant digits in each number in your problem. The significant digits of your answer is determined by the number with fewer digits. (2) For addition and subtraction, you determine the place value of each number in your problem. The significant digits of the answer is determined by the number that is least precise.</span>
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Natalka [10]
If it has a metal and a nonmetal bonded together it is an ionic bond. you are looking for non-metal non-metal bond. those are all covalent bonds. answer is B
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3 years ago
What's catalyst. The properties of catalyst
AlexFokin [52]

Answer:

Catalyst is a substance that increases the rate of a chemical reaction but is chemically unchanged at the end of the reaction.

properties of catalyst :

1. A catalyst increases the speed of a reaction, and it also improves the yield of the intended product.

2. A catalyst actually takes part in the reaction even though it itself is not consumed or used up in the course of the reaction.

3. A catalyst makes the reaction faster by providing an alternative pathway with a lower activation energy.

4. A catalyst is reaction-specific. It may not be effective in another reaction even if the two reactions are of similar type.

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5 0
4 years ago
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Ilia_Sergeevich [38]

It is Dicopper sulfate

3 0
3 years ago
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Harman [31]

Answer:

HCl conc.= 6.0mol/L

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From the dissociation of HCl= 1 mole H+ and 1mol Cl-, which is equivalent stoichiometrically in concentration to that of 1 mol HCl,

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Identify the types of information that are necessary to communicate with emergency responders. Select one or more: Any chemicals
oksano4ka [1.4K]

Answer:

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