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mario62 [17]
3 years ago
13

Experiments 11. What 2 factors increase the validity of a scientific experiment?

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
4 0

Answer:

evidince is one of them

Explanation:

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The bottom of a box has a surface area of 25.0 cm 2 . The mass of the box is 34.0 kilograms. Acceleration due to gravity at sea
Viktor [21]
Pressure given by: 
Pressure=(force)/(area)
Force=Mass*gravitational pull
Mass=34Kg
gravity=9.80

so,
force=34*9.8=333.2
thus;
pressure=333.2/25=13.328=13.3 N/cm^2

Hope this helped :)
5 0
3 years ago
A 2.87 g sample of carbon reacts with hydrogen to form 3.41 g of car fuel. What is the empirical formula for the car fuel?
olga_2 [115]

CH₇ is the empirical formula of the car fuel.

Explanation:

To find the empirical formula we use the following algorithm.

First divide each mass the the molar weight of each element:

for carbon 2.87 / 12 = 0.239

for hydrogen 3.41 / 2 = 1.705

And now divide each quantity by the lowest number which is 0.239:

for carbon 0.239 / 0.239 = 1

for hydrogen 1.705 / 0.239 = 7.13 ≈ 7

The empirical formula of the car fuel is CH₇.

I have to tell you that in reality this formula is wrong because is not possible to exist. However the algorithm for finding the empirical formula is right, the problem may reside in the amounts of carbon and hydrogen given.

Learn more about:

empirical formula

brainly.com/question/5297213

#learnwithBrainly

5 0
3 years ago
Please help me am stuck between "B" and "C"
balandron [24]

Answer: Trail Mix

Hope this helps :)

5 0
3 years ago
Read 2 more answers
Please answer
AURORKA [14]

Answer:

hi

Explanation:

1 east

2 the flower bud for cotton and for jute the leaves

plz mark me as a BRAINLIST

4 0
3 years ago
What happens when baking soda and vinegar are mixed together.
egoroff_w [7]

Answer: Mixing vinegar and baking soda initiates a chemical reaction that produces carbon dioxide and water.

Explanation:

8 0
2 years ago
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