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labwork [276]
3 years ago
12

Why do people act like they are your friends, then talk and whisper behind your back to another?

Chemistry
2 answers:
Usimov [2.4K]3 years ago
8 0

Answer:

Because humans are cruel

Explanation:

If they act like you’re friend but talk behind you’re back, don’t waist your time with them. There are better people out there that want to be ur friend too. People that will actually care for you. Trust me.

Burka [1]3 years ago
7 0

Answer:

it's just the way of people, of course there are some that don't but a lot of us have a tendency to want to fit in. If there with a group of friends that don't like you most people will talk behind your back to fit in with that group. Either that or their just fake and simply never liked you to begin with

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Answer:

1

Explanation:

Ferric Hydroxide

3. 1

Fe. (OH)

Fe(OH)3

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What is the question here?

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You have a substance with a length of 2 cm, width of 3 cm, and a height of 4 cm. Its density is known to be .5 g/cm3. What is th
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Explanation:

They are related by the the density triangle.

Explanation:

They are related by the the density triangle.

mcdn1.teacherspayteachers.com

d =

m

V

m = d×V

V =

m

d

DENSITY

Density is defined as mass per unit volume.

d =

m

V

Example:

A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?

Step 1: Calculate the volume

V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³

Step 2: Calculate the density

d =

m

V

=

433

g

200

c

m

³

= 2.16 g/cm³

MASS

d =

m

V

We can rearrange this to get the expression for the mass.

m = d×V

Example:

If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?

m = d×V = 500 mL ×

1.11

g

1

m

L

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VOLUME

d =

m

V

We can rearrange this to get the expression for the volume.

V =

m

d

Example:

What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.

Step 1: Convert kilograms to grams.

14.83 kg ×

1000

g

1

k

g

= 14 830 g

Step 2: Calculate the volume.

V =

m

d

= 14 830 g ×

1

c

m

³

19.32

g

= 767.6 cm³

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