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alexgriva [62]
3 years ago
5

How do you express a number in scientific notation?

Chemistry
1 answer:
kykrilka [37]3 years ago
5 0

D. scientific notation is (insert decimal number) x10^(however many 0's there are)

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One of the isotopes of sulfur is represented as sulfur-35 or S-35. What does the number 35 signify?
Lina20 [59]
35 signifies the mass number of the element sulfur...or atomic mass
4 0
3 years ago
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soaps do not work well in hard waters. But they can still be effected it large quantities of soap are added to water. Explain wh
Nookie1986 [14]

They can still be effected it large quantities of soap are added to water

because more soap eliminates the effect the minerals in hard water has on

its cleaning capacity.

Hard water contains minerals such as

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They reduce the cleaning capacity of the soap. This is why soft water is

preferably used as it doesn't contain these minerals.

When more soap is added, the effect of the minerals reduces thereby

bringing about very little or no effect on the cleaning capacity of the soap.

Read more about Soap here brainly.com/question/1473301

6 0
2 years ago
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The half life of thallium 201 is 21.5 hours. We have 98 g of thallium 201 how many grams will be left after 10 half-lives?
Lynna [10]

Answer:

                     0.0957 g

Explanation:

                    Half life is the time required by the substance to decay to half of its initial mass. Most often exponential decays of radioactive substances are explained by half life. Half life remains constant throughout the life of decay.

It is given as;

<em>                                       N</em>(t)  =  N₀ (1/2)^t/t1/2

                                     

Where;

           <em>N</em>(t)  =  Amount remaining after certain time

           N₀  =  The starting initial amount

           t1/2  =  Half life of given substance

Putting values,

<em>                                       N</em>(t)  = 98 × (1/2)^215/21.5

<em>                                       N</em>(t)  = 0.0957 g

8 0
3 years ago
At another temperature, the rate constant is 3.25 M-2 s-1. What is the rate at this temperature for the
brilliants [131]

Answer:

It's 0.00015

Explanation:

got it right on edge 2021

4 0
3 years ago
What type of energy for a spring is compressed
Firlakuza [10]

Answer:

potential energy is answer

Explanation:

7 0
3 years ago
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