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3 years ago

What represents a substance that is a liquid and a compound?

1 answer:

8 0

Oh wow there could be so many but if you take any ionic compound that is aqueous, I’m sure it would work? Aqueous is a solid that is dissolved in water by the way. So I mean, that would technically create a liquid solution.

Sorry I couldn’t be a better help.. I probably didn’t explain that very well either but I hope that kinda gives you an idea of an option. :\

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___Mg + ___Fe2O3 -> ___MgO + ___Fe

Zigmanuir [339]

Answer:

the answer is A)1,2,1,2

Explanation:

hop is is correct

6 0

3 years ago

Read 2 more answers

A 1.00 kg sample of Sb2S3 (s) and a 10.0 g sample of H2 (g) are allowed to react in a 25.0 L container at 713 K. At equilibrium,

Scorpion4ik [409]

Answer: The value of $K_c$ is coming out to be 0.412

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)

For $Sb_2S_3$

Given mass of $Sb_2S_3$ = 1.00 kg = 1000 g (Conversion factor: 1 kg = 1000 g)

Molar mass of $Sb_2S_3$ = 339.7 g/mol

Putting values in equation 1, we get:

$\text{Moles of }Sb_2S_3=\frac{1000g}{339.7g/mol}=2.944mol$

For hydrogen gas:

Given mass of hydrogen gas = 10.0 g

Molar mass of hydrogen gas = 2 g/mol

Putting values in equation 1, we get:

$\text{Moles of hydrogen gas}=\frac{10.0g}{2g/mol}=5mol$

For hydrogen sulfide:

Given mass of hydrogen sulfide = 72.6 g

Molar mass of hydrogen sulfide = 34 g/mol

Putting values in equation 1, we get:

$\text{Moles of hydrogen sulfide}=\frac{72.6g}{34g/mol}=2.135mol$

The chemical equation for the reaction of antimony sulfide and hydrogen gas follows:

$Sb_2S_3(s)+3H_2(g)\rightarrow 2Sb(s)+3H_2S(g)$

Initial: 2.944 5

At eqllm: 2.944-x 5-3x 2x 3x

We are given:

Equilibrium moles of hydrogen sulfide = 2.135 moles

Calculating for 'x', we get:

$\Rightarrow 3x=2.135\\\\\Rightarrow x=\frac{2.135}{3}=0.712$

Equilibrium moles of hydrogen gas = (5 - 3x) = (5 - 3(0.712)) = 2.868 moles

Volume of the container = 25.0 L

Molarity of a solution is calculated by using the formula:

$\text{Molarity}=\frac{\text{Moles}}{\text{Volume}}$

The expression of $K_c$ for above equation, we get:

$K_c=\frac{[H_2S]^3}{[H_2]^3}$

The concentration of solids and liquids are not taken in the expression of equilibrium constant.

$K_c=\frac{(\frac{2.135}{25})^3}{(\frac{2.868}{25})^3}\\\\K_c=0.412$

Hence, the value of $K_c$ is coming out to be 0.412

3 0

3 years ago

Light travels faster than sons. true or false?

Licemer1 [7]

Answer:

true

Explanation:

light travels faster than sound.

8 0

3 years ago

1. Which statement concerning an ecosystem is correct?

GenaCL600 [577]

(3) It involves interactions between biotic and abiotic

factors.

Explanation:

An ecosystem involves the interaction between biotic and abiotic factors.

The biotic factors are the living components of the ecosystem. The abiotic factors are the non-living components.

An ecosystem is made up the interaction between living organisms and their environments.

Ecosystem are combination of the community of lives and the environment.
The environment contains the non-living abiotic components.
The organisms are the living components.
All of this merges together to form of the ecosystem.

learn more:

Ecosystem brainly.com/question/2456852

#learnwithBrainly

5 0

3 years ago

Which of the following statements is/are true regarding hydrogen bonds in water?

kap26 [50]

Answer

B,C,D,E

Explanation:

Hydrogen bonds in water forms a tetrahedral ( four sided structure) and not a six sided structure.

The hydrogen bonds are needed to be broken first when heat is applied to change from one state to another.It makes room for more heat to be applied than the required amount which signifies a higher latent heat of melting or vaporization and also a higher heat capacity .

5 0

3 years ago