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3 years ago

All water is located in this layer

Chemistry

1 answer:

11111nata11111 [884]3 years ago

7 0

The troposphere because it is the closest to the earth

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What is the symbol for hydrogen

Kazeer [188]

The symbol for hydrogen is H

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3 years ago

Find the density of a substance that has a mass of 75 g and a volume of 35 mL. Don't forget your units!

Andrew [12]

Answer:

The density of a substance that has a mass of 75 g and a volume of 35 mL is 2.14 $\frac{g}{mL}$

Explanation:

Density is a characteristic property of a substance that relates to the amount of mass it has per unit volume. In other words, density is the property that matter, whether solid, liquid or gas, has to compress into a given space (it measures the amount of mass in a given volume of a substance). It is calculated as the quotient between the mass of a body and the volume it occupies:

$density=\frac{mass}{volume}$

In this case, you know:

mass= 75 g
volume= 35 mL

Replacing:

$density=\frac{75 g}{35 mL}$

Solving:

$density=2.14\frac{g}{mL}$

The density of a substance that has a mass of 75 g and a volume of 35 mL is 2.14 $\frac{g}{mL}$

5 0

3 years ago

WILL GIVE BRAINLIEST TO ANSWER

aleksklad [387]

Answer:

2.5 grams

Explanation:

you can see it on the graph

4 0

3 years ago

Describe and explain how petrol is separated from the mixture of hydrocarbons in crude oil.

lara31 [8.8K]

The crude oil is heated in a process of fractional distillation (note: you can research this online if you require more detail) and this process causes different hydrocarbons to condense at different heights up the distillation column. They will therefore run down the side of the column and into different areas depending on their boiling point.

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4 years ago

What would changing the number of electrons in a atom change

aksik [14]

Answer:

The mass of the atom will change

Explanation:

The mass of the atom will alter if the changing the amount of electrons in an atom charge would result in being positively or negatively charged (Correct me if I'm incorrect sorry If I got this wrong)

3 0

3 years ago