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3 years ago

12

The periodic law states that the physical and chemical properties tend to repeat periodically when elements are arranged accordi

ng to what trend

1 answer:

Ivanshal [37]3 years ago

6 0

Atomic number or the number of protons in the element.

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Which element on the periodic table has chemical properties that are most similar to those of carbon?

prisoha [69]

Silicon, it's bring brother would be the prime candidate, although its compounds are notably different from those of carbon.

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3 years ago

Objects that are able to fall have what type of energy?

ASHA 777 [7]

Answer:

kinetic energy

Explanation:

because of the movement of gravity and space

4 0

3 years ago

Lead has a density of 11.29 g/mL. If you had 186 g of lead, what would its volume be?

Varvara68 [4.7K]

I think you just do 11.29 multiplied by 186 since to find density you divide mass by volume. So 186 divided by x is 11.29. So in conclusion the volume would be 2,099.94mL

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3 years ago

What is the final volume of a gas (in liters) when the initial volume is 14.00 L at

8_murik_8 [283]

Answer:

$V_2=1344L$

Explanation:

Hello there!

In this case, since we have a problem about volume-pressure relationship, the idea here is to use the Boyle's law to calculate the final volume as shown below:

$P_2V_2=P_1V_1\\\\V_2=\frac{P_2V_2}{P_1}\\$

Then, we plug in the initial and final pressures and the initial volume to obtain:

$V_2=\frac{14.00L*0.9600atm}{0.01000atm}\\\\V_2=1344L$

Regards!

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2 years ago

A certain shade of blue has a frequency of 7.18 × 1014 Hz. What is the energy of exactly one photon of this light?

Rina8888 [55]

Hope this helps you!

5 0

3 years ago