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Hunter-Best [27]
3 years ago
10

Can someone tell me if I put this in the correct pairs???? Help please!!??

Chemistry
1 answer:
e-lub [12.9K]3 years ago
8 0
Yes i think so



hope i helped
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Expressed to the correct number of significant figures, what is the correct sum of (3.04g + 4.134g + 6.1g)?
Lera25 [3.4K]

Answer:

13.3g

Explanation:

3.04g + 4.134g + 6.1g = 13.274g

=13.3g

When expressing the correct number of significant figures in addition, you go to the last common decimal place. In this case that is 0.1 because all the numbers have this decimal place.

This is because your measurement can only be as precise as the least precise measurement. The more decimal places in the measurement, the more precise the measurement.

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Determine the density of CO2 gas at STP
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the density of CO2 gas at STP is 1.96 g/l.

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If 14c-labeled uracil is added to the growth medium of cells, what macromolecules will be labeled?
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When there are 14c-lable uracil that are added to the growth medium of cells, the macromolecules that will be labled are RNA. Uracil is a nucleobase that make up the DNA or the RNA. In RNA, uracil binds with other nucleobase (adenine) through hydrogen bonds.
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4 years ago
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A sealed container at 25oC contains a gas at a pressure of 104 kPa. What is the pressure of the gas when it is heated to 225oC?
seropon [69]

Answer:

174 kPa

Explanation:

Given that,

Initial temperature, T₁ = 25° C = 25+273 = 298 K

Final temperature, T₂ = 225°C = 225 + 273 = 498 K

Initial pressure, P₁ = 104 kPa

We need to find the new pressure. The relation between the temperature and pressure is given by :

\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}

So,

P_2=\dfrac{P_1T_2}{T_1}\\\\P_2=\dfrac{104\times 498}{298}\\\\P_2=173.79\ kPa

or

P₂ = 174 kPa

So, the new pressure is 174 kPa.

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3 years ago
How many moles of h are in 0.73 mole of c6h10s
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Answer:

7.3 mole

Explanation:

1 C6H10S gives 10H

0.73 mole of C6H10S gives X mole of Hydrogen

X= 0.73×10=7.3mole

7 0
4 years ago
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