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3 years ago

Which of the following is a characteristic of nonmetals?

Chemistry

1 answer:

stellarik [79]3 years ago

4 0

Answer: Option (a) is the correct answer.

Explanation:

Non-metals are the species which in order to complete their octet readily gain an electron.

For example, fluorine is a non-metal with atomic number 9 and its electronic distribution is 2, 7.

Hence, to attain stability it readily accepts an electron from a donor atom.

Some characteristics of non-metals are as follows.

Non-metals do not conduct electricity.

Non-metals are brittle in nature and they have a rough surface.

Non-metals are not malleable or ductile.

Thus, we can conclude that non-metals do not conduct electricity is a characteristic of non-metals.

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Anton van Leeuwenhoek used a microscope to observe

Goshia [24]

B. He was the first person to observe and identify living cells.

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3 years ago

The changing of a substance from a liquid into a vapor or gas is called

sergejj [24]

Answer: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.

Explanation: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.

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1 year ago

HELP QUICKK PLEASEEE

bazaltina [42]

Answer:

According to Kinetic Molecular Theory, an increase in temperature will increase the average kinetic energy of the molecules. As the particles move faster, they will likely hit the edge of the container more often. If the reaction is kept at constant pressure, they must stay farther apart, and an increase in volume will compensate for the increase in particle collision with the surface of the container.

Explanation:

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3 years ago

Which of these is connected by three covalent bonds?

leonid [27]

Answer:

NH3

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3 years ago

You are given 10ml (M) 20 Naoh solution in a conical flask and asked to titrate with (M) 20 Hcl and (M) 20 H2so4 separately. cal

Solnce55 [7]

Answer:

$n_{HCl}=0.2molHCl\\n_{H_2SO_4}=0.1molH_2SO_4$

Explanation:

Hello!

In this case, since the reactions between NaOH and the acids are:

$NaOH+HCl\rightarrow NaCl+H_2O\\\\2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O$

Whereas we can see the 1:1 and 2:1 mole ratios between NaOH and HCl and H2SO4 respectively. In such a way, at the equivalence point we realize that:

$n_{HCl}=n_{NaOH}=V_{NaOH}M_{NaOH}=0.01L*20mol/L=0.2molHCl\\\\2n_{H_2SO_4}=n_{NaOH}\\\\n_{H_2SO_4}=\frac{1}{2} V_{NaOH}M_{NaOH}=\frac{0.01L*20mol/L}{2} =0.1molH_2SO_4$

Best regards!

8 0

3 years ago