3 years ago

HEEEEeEELP PLEasE! IS SCIENCE

Chemistry

1 answer:

Fynjy0 [20]3 years ago

6 0

Gas and radio waves I’m pretty sure is correct

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Convert each of the measurements given to the new unit stated using the factor label method (dimensional analysis). Show all wor

KengaRu [80]

For cm to m, you need to divide by 100 to get m:
26cm/100= 0.26m

For hr to min, you need to multiply by 60 to get min:
4hr x 60= 240min

For km to m, you need to multiply by 1000 to get m:
3.25km x 1000= 3250m

For ft to in, you need to multiply by 12 to get in:
5ft x 12=60in

So we have:
0.26m
240min
3250m
60in

6 0

3 years ago

The temperature in a town started out at 55 degrees. By the end of the day the temperature dropped to -6 degrees.

garik1379 [7]

Answer:

The choice of the answer is fourth option that is -61 degrees.

Therefore the temperature drop is -61°Centigrade.

Explanation:

Given:

The temperature in a town started out at 55 degrees

Start temperature = 55°Centigrade. (Initial temperature)

End of the Day = -6°Centigrade. (Final temperature)

To Find:

How far did the temperature drop?

Solution:

We will have,

$\textrm{Temperature drop}=\textrm{Final temperature}-\textrm{Initial temperature}$

Substituting the above values in it we get

$\textrm{Temperature drop}=-6-55\\\\\therefore \textrm{Temperature drop}=-61\° centigrade$

Therefore the temperature drop is -61°Centigrade.

4 0

3 years ago

Find the molarity: 9.82 grams of lead (IV) nitrate are dissolved to make 465 mL of solution.

solmaris [256]

Molarity is moles per liter. Therefore you must covert grams->moles by dividing 9.82 by the molar mass of lead IV nitrate. Then convert mL->L. Once you have those two numbers you can plug them into the formula Molarity = mol/L.

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Every ________ will have its own unique set of quantum numbers.

yulyashka [42]

Answer:

D. individual electron

Explanation:

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The function of hydrochloric acid in the gastric juice.

irina [24]

The function of hydrochloric acid is to melt the food

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3 years ago