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vodomira [7]
3 years ago
9

Which source is most likely an authority on the subject

Chemistry
2 answers:
german3 years ago
7 0
Please put the answers!
cestrela7 [59]3 years ago
4 0

Answer:

Dr. Patel, a cardiologist, presents her findings on heart disease

Explanation:

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How many grams are in 2.3 moles of calcium phosphate, Ca3(PO3)2
irina1246 [14]
Moles = mass/molar mass
moles = 2.3
molar mass = 278
=> mass = moles*molar mass = 639.4g
6 0
3 years ago
A gas occupies a volume of 1.00 L at 25.0°C. What volume will the gas occupy at 1.00 x10^2 °C?
Leno4ka [110]

Answer : The volume of gas occupy at 1.00\times 10^2^oC is, 1.25 L

Explanation :

Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=1.00L\\T_1=25.0^oC=(25.0+273)K=298K\\V_2=?\\T_2=1.00\times 10^2^oC=((1.00\times 10^2)+273)K=373K

Putting values in above equation, we get:

\frac{1.00L}{298K}=\frac{V_2}{373K}\\\\V_2=1.25L

Therefore, the volume of gas occupy at 1.00\times 10^2^oC is, 1.25 L

3 0
3 years ago
What is the name of this compound?<br><br> C6H6-<br> C=O-<br> H
ipn [44]

Answer: Benzaldahyde

Explanation: the C₆H₅- represents the substituted benzene ring and the

CHO should represent the functional group of aldehyde

8 0
3 years ago
Read 2 more answers
When precipitation falls in summer, sometimes wind pushes it back up into freezing temperatures before falling again. What will
SVETLANKA909090 [29]

Answer:

A

Explanation:

hail will fall push it back up making it bigger comes back down

3 0
3 years ago
a liquid that occupies a volume of 5.0L gas a mass of 6.0 kg. what is the density of the liquid in kg/L?
AysviL [449]

Answer:

1.2Kg/l

Explanation:

Density=Mass/Volume

Density=6.0/5.0

Density=1.2Kg/l

7 0
2 years ago
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