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erma4kov [3.2K]
3 years ago
11

Pls help me 20 points ty

Chemistry
2 answers:
qaws [65]3 years ago
6 0

Answer:

what do you need help with i cant see it

Explanation:

belka [17]3 years ago
6 0

Answer:

See the image for answer.

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How much power is used if a force of 54 newtons is used to pull a wagon a distance of 10 meters in 6 seconds? 3,240 W 90 W 32.4
timama [110]
Power is defined in a mathematical expression as P = F x v where F is in N and v is in m/s. From the given equation, the v = d/t which is v = 10/ 6, then substituting the answer to the power formula W = 54 N (10/6 m/s) = 90 Watts. 
3 0
3 years ago
Read 2 more answers
Test tubes are used mostly for _____. A. storing experimental samples B. making precise measurements of liquids C. containing ex
Annette [7]

Answer: A) Storing experimental samples

Explanation:

It is a common piece of laboratory glassware that can be made of glass or plastic and is opened at the top and closed at the bottom.

It cannot be used for measurements because there is no graduation indicating the volume.

Althought it can contain extra chemicals left over from an experiment, it is not the main proposal of the glassware that is to store samples.

It cannot be used in a microscope and the object for that is a microscope slide.

8 0
3 years ago
What is matter?
belka [17]
A Anything that has mass and takes up space
4 0
3 years ago
Read 2 more answers
How many moles of propane gas would be present in 11 grams<br> of the gas at standard conditions?
Akimi4 [234]
The molar mass is usually referred to with
M
, while the mass is referred to as
m
. The amount of substance is
n
. This gives you the following relationship:
=
M
=
m
n

Since you have given (C3H8)=11 g
m
(
C
3
H
8
)
=
11

g
and you already looked up (C3H8)=44.1 gmol−1
M
(
C
3
H
8
)
=
44.1

g
m
o
l
−
1
, you can use this formula to determine (C3H8)
n
(
C
3
H
8
)
.

In this question it is quite hard to explain the use of significant figures. Those are used to imply a certain inaccuracy. Not enough information is given by the question, as of how accurate the measurement is. It is a mere exercise of converting one property into another. Here you should not worry about it.
5 0
3 years ago
S]
Karolina [17]
Can you reword it im confused
6 0
3 years ago
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