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o-na [289]
3 years ago
15

_______ is the application of scientific knowledge to solve problems or create new products.

Chemistry
2 answers:
Yuri [45]3 years ago
5 0
Yes having resources works
astraxan [27]3 years ago
3 0
Having resources? i guess... 
maybe it is critical thinking?
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A total of 0.829 L of hydrogen gas is collected over water at 33.0°C. The total pressure is 794 torr.
Natalija [7]

Answer:

P(H₂) = 807.2 torr

Explanation:

According to the Dalton law, the pressure of mixture of a gas is sum of the partial pressure of its mixing component gases.

P(total) = P1 + P2 + P3 +....

In given problem,

Total pressure is = 794 torr

Partial pressure of water = 13.2 torr

Partial pressure of hydrogen = ?

Solution:

P(total) = P(H₂O)  + P(H₂)

P(H₂) = P(total) - P(H₂O)

P(H₂) = 794 torr - 13.2 torr

P(H₂) = 807.2 torr

5 0
3 years ago
2C6H14 + 19O2 → 12CO2 + 14H2O How many atoms, total, are reacting in this equation?
marin [14]
Answer is: seventy eight (78) atoms in this reaction.
In this balanced chemical reaction there are twelve carbon atoms (from two molecules of C₆H₁₄), twenty eight atoms of hydrogen (from two molecules of C₆H₁₄) and thirty eight atoms of oxygen (from nineteen molecules of oxygen):
12C + 28H + 38O = 78 atoms total.
7 0
3 years ago
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Name three types of energy associated with the microwave
Svet_ta [14]
Name three types of energy associated with the microwave Kinetic, radiation, and electricity
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3 years ago
A chemist adds a sample of an ideal gas to a balloon and measures its volume. The chemist removes some of the gas from the ballo
meriva

Answer:

The volume of the gas decreases also in a 21% based on the Avogadro's law

Explanation:

Based on Avogadro's law, the volume of a gas is directely proportional to the amount of moles of gas when temperature and pressure remain constants.

The formula is:

V1 / n1 = V2 / n2

<em>Where V is volume and n are moles in 1, initial state and 2, final state of the gas.</em>

<em />

At beginning, V1 = 100%, n1 = 100%,

As the chemist removes 21% of the gas, 79% of moles remain = n2.

Replacing:

100% / 100% = V2 / 79%

V2 = 79%, that means:

<h3>The volume of the gas decreases also in a 21% based on the Avogadro's law</h3>
8 0
2 years ago
What is use in measuring
Nutka1998 [239]

Answer:

a ruler or measuring cups are ways of measuring

Explanation:

6 0
2 years ago
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