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Softa [21]
3 years ago
9

Which of the following is true about fossils?

Chemistry
2 answers:
Agata [3.3K]3 years ago
7 0

Answer:C

Explanation:

nikitadnepr [17]3 years ago
4 0
<h2>                        Hey Emma Here<em>!</em></h2>

Answer:

The answer is <u>B</u><em>!</em>

Explanation:

if they are lower this means that they have been on the ground longer there for older

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As the distance between the moon and Earth increases the moon's orbital speed...
AleksAgata [21]
Although the moon's distance from earth varies each month because of its eccentric orbit, the moon's mean distance from Earth is nonetheless increasing at the rate of about 3.8 centimeters (1.5 inches) per year
4 0
4 years ago
How do you find the pressure in a container if you don't have the temperature? 
BARSIC [14]
It depends on the process.
Like for example if the process is isothermal(temperature is constant), you can use,
PV = constant or P1V1 = P2V2 where P1V1 are initial conditions and P2V2 are final.


For adiabatic process,

PV^gamma = constant or P1V1 ^gamma = P2V2 ^gamma.

where gamma = Cp
                          ------
                           Cv
Cp = specific heat at constant pressure and Cv = specific at constant volume.

Value of Gamma will be given in question.
Hope this helps!


7 0
3 years ago
Why does soap decrease the surface tension of water?
e-lub [12.9K]

Answer:

Soap decreases surface tension by changing the way water behaves on the surface. Hard and soft water react differently when soap is added to them.

Explanation: i think it is this

8 0
3 years ago
A gas expands from a volume of 2.00L at 36.0oC to a volume of 2.50 L, what is the final temperature, if the pressure is constant
lakkis [162]
We shall consider V, the volume and T, the temperature.
According to Boyle's Laws:
\frac{V1}{T1} = \frac{V2}{T2}
In our case:
\frac{2.00}{36.0} = \frac{2.50}{T2} =\ \textgreater \  T2= \frac{2.50*36.00}{2.00} = 45
6 0
3 years ago
Read 2 more answers
Using the periodic table in your textbook, calculate the molar mass of paraffin (C46H92O2).
ArbitrLikvidat [17]

Answer:

677.39 g/mol

Explanation:

Step 1: Find molar masses of elements

Carbon (C) - 12.01 g/mol

Hydrogen (H) - 1.01 g/mol

Oxygen (O) - 16.00 g/mol

Step 2: Multiply the amount present

12.01 g/mol · 46 = 552.46 g/mol

1.01 g/mol · 92 = 92.92 g/mol

16.00 g/mol · 2 = 32.00 g/mol

Step 3: Add up all the molar masses to find compound molar mass

552.46 g/mol + 92.92 g/mol + 32.00 g/mol = 677.39 g/mol

3 0
3 years ago
Read 2 more answers
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