About how many molecules of water are in a swimming pool that holds 200 m^3 of water ? Write your answer in scientific notation . Please , I need your help !

Answers

Answer 1

Answer: metric is very conveinient
1gram=1cm^3 of water
1m^3=1,000,000,000 grams

water is 18.015 grams per mole
(1,000,000 grams water)/(18.015 grams/mole) = 55509.3 moles

there are 6.02e23 molecules in 1 mole of water so
55509.3 moles * (6.0221E23) = 3.3428E27 molecules of water in 1m^3 of water
so we have200 of those
200 times 3.3428E27=6.6856E29 molecules

answer is 6.6856 times 10^29 mlecules

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Answers

Answer:

See below

Step-by-step explanation:

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c) About 32% of autos should get more than 33 mpg.

d) The percentage of autos that should get between 33 and 37.8 mpg is 32%.

e) The best 2.5% of cars get more than 42.6 mpg.

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Answers

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Answers

Answer:

x= 1/a and a= 1/x

Step-by-step explanation:

A line is drawn so that it passes through the points (3, 4) and (2, 1) .What is the slope of the line?

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3

−3

13

Answers

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Answers

the prime factors of 700 = 2 x 2 x 5 x 5 x 7.

Answer:

The answer is 2 x 2 x 5 x 5 x 7. for Penn Foster students

Step-by-step explanation:

The set of integers contains whole numbers and their _____.

Answers

Answer – Opposites
The set of integers contains whole numbers and their opposites. In other words, integers are set of numbers which contains the positive whole numbers, the negative whole numbers (i.e. opposite of the positive whole numbers), and zero. Integers do not contain fractions and decimals.

The set of integers contains whole numbers and their opposites

How to complete the blank

From the question, we have the following parameters that can be used in our computation:

The statement

By definition, integers are set of numbers which contains the positive whole numbers, the negative whole numbers (i.e. opposite of the positive whole numbers), and zero.

Also, integers do not contain fractions and decimals

This means that the set of integers contains whole numbers and their opposites.