CHEMISTRY HIGH SCHOOL

Express in scientific notation. Make sure your answer has the same number of significant figures as the starting value. 0.01325 = _____

Answers

Answer 1
Answer:

0.01325 = 1.325x10^-2 or 13.25 x 10^-3 or 132.5 x 10^ - 4 or 1325 x 10^-5. Scientific notation is the standardized way to represent any number as the product of a real number and a power of ten.
Answer 2
Answer:

Final answer:

The number 0.01325 is expressed in scientific notation as 1.325 x 10^-2. The number of significant figures remains the same.

Explanation:

The starting value 0.01325 can be converted to scientificnotation by first moving the decimal place. In this case, the decimal moved to the right by 2 places, making the number 1.325. So the number in scientific notation becomes 1.325 x 10^-2. Notice that there are still the same 4 significant figures (1, 3, 2, 5) in the number 1.325 as in the original number 0.01325.

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An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. What other characteristic does the radiation have?some shielding required
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Answers

The radiation emitted is a beta particle with a -1 charge. Beta particles have a medium penetrating power. An emission of beta particles requires shielding because of the hazards it pose to humans. Thus, one characteristic of this radiation is that some shielding is required.

Another characteristic that this type of radiation have is that: A. some shielding required.

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a compound has an empirical formula of C2H303. if its molar mass is 300.20 g, what is its molecular formula?

Answers

2:3:3 is the correct answer

Na2S2O3 + KBrO3 + H2SO4 = Na2S4O6 + K2SO4 + Na2SO4 + Br2 + H2O

Answers

It helps writing it down on a piece of paper, and doing these problems with a pencil and good eraser. I like to make a grid at the bottom of my paper listing all the elements on the left side and the right side to see which part of the equation I need to balance. 

22 Na2S2O3 + 10 KBrO3 + 7 H2SO4 = 8 Na2S4O6 + 5 K2SO4 + 14 Na2HSO4 + 5 Br2

Measuring how quickly a reactant disappears is one way to measure the ______________of the reaction

Answers

Explanation:

More quickly a reactant will disappear, the more quickly it will result in the formation of products. This means that consumption or disappearance of reactants determines the rate of a reaction because only then products will be formed.

Thus, we can conclude that measuring how quickly a reactant disappears is one way to measure the rate of the reaction.

Measuring how quickly a reactant disappears is one way to measure the rate of the reaction. It is because the rate of reaction for product formation and reactants forming is the same. It came to a point where their reaction attains equilibrium.

The ph of a 0.001 m hcl solution is closest to

a. 1
b. 7
c. 3
d. 10

Answers

C 3 is the answer because its right

Which reactants would lead to a spontaneous reaction? Mn2+ and Al
Mn and Al3+
Al and Mn
Mn2+ and Al3+

Answers

The reactants that would lead to a spontaneous reaction are Mn2+ and Al3+. Al and Mn  are not because they are stable reactants. Mn and Al3+ are not because Mn is stable. Mn2+ and Al are not because Al is stable.

Answer:

ITS B

Explanation:

I took the test on edge
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