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3 years ago

Which pair of elements form an ionic bond?

Chemistry

1 answer:

Anastasy [175]3 years ago

3 0

Answer:

As an example I can say sodium (Na) and chlorine (Cl).

Explanation:

An ionic bond occurs when a metal element reacts with a nonmetal element. Therefore in the answer given above the Na is metal and Cl is nonmetal and they form a molecule through ionic bonding.

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This graph illustrates that, under conditions of constant pressure, as the temperature of liquid water increases, its volume ___

e-lub [12.9K]

This question would be easier to answer if you attached a picture of the graph the question is referring to.

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4 years ago

Read 2 more answers

For the following reaction, 35.4 grams of zinc oxide are allowed to react with 6.96 grams of water . zinc oxide(s) + water(l) --

IRISSAK [1]

Answer:

$m_{Zn(OH)_2}=38.4g$

Explanation:

Hello!

In this case, for the undergoing chemical reaction:

$ZnO(s)+H_2O(l)\rightarrow Zn(OH)_2$

We evaluate the yielded moles of zinc hydroxide by each reactant as shown below:

$n_{Zn(OH)_2}^{by ZnO}=35.4gZnO*\frac{1molZnO}{81.38gZnO}*\frac{1molZn(OH)_2}{1molZnO} =0.435molZn(OH)_2\\\\n_{Zn(OH)_2}^{by H_2O}=6.96gH_2O*\frac{1molH_2O}{18.02gH_2O}*\frac{1molZn(OH)_2}{1molH_2O} =0.386molZn(OH)_2$

In such a way, since the water yields a smaller amount of zinc hydroxide we conclude it is the limiting reactant so the maximum mass is computed below:

$m_{Zn(OH)_2}=0.386molZn(OH)_2*\frac{99.424 gZn(OH)_2}{1molZn(OH)_2} \\\\m_{Zn(OH)_2}=38.4g$

Because the water limits the yielded amount of zinc hydroxide.

Best regards!

5 0

3 years ago

Which phrase describes radiation?

stepan [7]

Answer:

The process in which energy is emitted by one object ,transmitted through .......

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3 years ago

Volcanic islands are created as a crustal plate moves over a

MatroZZZ [7]

Answer:

Magma hot spot.

Explanation:

Hot spots stay always the same location because they are in the mantle, not in the crust. So, that's why hotspots stay while plates are moving over them.

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3 years ago

Two mineral samples have the same size. The heavier one has a higher _____________. *

Simora [160]

Answer:

Density

Explanation:

D= m/v

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3 years ago