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melomori [17]
3 years ago
15

What is 0.0006250 L in scientific notation

Chemistry
2 answers:
marin [14]3 years ago
7 0
The answer would be 6.25 × 10-4
inn [45]3 years ago
5 0
6.250 * 10 to the negative 3

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2. How does friction effect speed?
elixir [45]

Answer:

It acts as a force upon it like in newtons first law of motion an object in motion will stay in motion until a force acts upon it So friction bascicallly slows it down or stops it completly

Explanation:

4 0
4 years ago
Mr. Stein builds a model of a molecule out of wooden beads and pegs. He uses the model to explain the shape of the molecule. Mr.
ZanzabumX [31]

Answer:

A

Explanation: The real molecule is too small so had to build a model to make it viewable

5 0
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A cooling of surface ocean waters in the eastern equatorial Pacific Ocean is known specifically as ________.
Eddi Din [679]

Answer:

La Nina

Explanation:

La Nina -

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8 0
4 years ago
2. A balloon full of air has a volume of 2.75 L at a temperature of 18°C. What is the balloon's volume
Sphinxa [80]

Answer:

3.01 L

Explanation:

V

1

: 2.75L

T

1

:  

18

∘

C

V

2

: ?

T

2

:  

45

∘

C

If you know your gas laws, you have to utilize a certain gas law called Charles' Law:

V

1

T

1

=

V

2

T

2

V

1

is the initial volume,  

T

1

is initial temperature,  

V

2

is final volume,  

T

2

is final temperature.

Remember to convert Celsius values to Kelvin whenever you are dealing with gas problems. This can be done by adding 273 to whatever value in Celsius you have.

Normally in these types of problems (gas law problems), you are given all the variables but one to solve. In this case, the full setup would look like this:

2.75

291

=

V

2

318

By cross multiplying, we have...

291

V

2

= 874.5

Dividing both sides by 291 to isolate  

V

2

, we get...

V

2

= 3.005...

In my school, we learnt that we use the Kelvin value in temperature to count significant figures, so in this case, the answer should have 3 sigfigs.

Therefore,  

V

2

= 3.01 L

5 0
4 years ago
33. Which element in Period 5 of the Periodic Table
Sveta_85 [38]
B) Ag because it’s in the middle of the periodic table.
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3 years ago
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