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4 years ago

5. How is mercury different from all of the other metals

Chemistry

2 answers:

DanielleElmas [232]4 years ago

8 0

Answer:

Mercury is bad at sharing electrons.

Explanation:

Most metal atoms readily share valence electrons with other atoms. The electrons in a mercury atom are bound more tightly than usual to the nucleus.

Svetradugi [14.3K]4 years ago

6 0

It's freezing point and boiling point are closer than all other metals. It's also liquid at room temperature.

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Is vintage seltzer a mixture or substance?

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Answer:

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Explanation:

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3 years ago

Gallium chlorate decomposes

Reptile [31]

Answer:

Explanation:

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3 years ago

Which of the following are conjugate acid/base pairs? Select all that apply.

Setler79 [48]

Answer: $HCOOH$ and $HCOO^-$

$HNO_3$ and $NO_3-^-$

$H_2SO_4$ and $SO_4^{2-}$

$H_2CO_3$ and $CO_3^{2-}$

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

For the given chemical equations:

1. $HCOOH(aq)\rightarrow HCOO^-(aq.)+H^+(aq.)$

Here, $HCOOH$ is loosing a proton, thus it is considered as an acid and after losing a proton, it forms $HCOO^-$ which is a conjugate base.

2. $HNO_3(aq)\rightarrow NO_3^-(aq.)+H^+(aq.)$

Here, $HNO_3$ is loosing a proton, thus it is considered as an acid and after losing a proton, it forms $NO_3^-$ which is a conjugate base.

3. $H_2SO_4(aq)\rightarrow SO_4^{2-}(aq.)+2H^+(aq.)$

Here, $H_2SO_4$ is loosing a proton, thus it is considered as an acid and after losing a proton, it forms $SO_4^{2-}$ which is a conjugate base.

4. $NaCl$ and $NaOh$ are not conjugate acid/ base pairs.

5. $H_2CO_3(aq)\rightarrow CO_3^{2-}(aq.)+2H^+(aq.)$

Here, $H_2CO_3$ is loosing a proton, thus it is considered as an acid and after losing a proton, it forms $CO_3^{2-}$ which is a conjugate base.

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4 years ago

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Ostrovityanka [42]

Answer:

D Biomass produces no radioactive waste

Explanation:

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2 years ago

According to Dalton's atomic theory

avanturin [10]

Answer: C. Atoms cannot be subdivided, created, or destroyed. This is the correct answer

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3 years ago