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3 years ago

In every balanced chemical equation,each side of the equation has the same number of?

1 answer:

4 0

In every balanced chemical equation, each side of the equation has the same number of atoms of reactants and products.

For example, let's take this chemical equation.

This is the chemical equation for carbon monoxide reacting with dihydrogen to form octane and water.

8 CO + 17 H2 → C8H18 + 8 H2O

On this side, we have 8 carbon monoxide atoms and 34 dihydrogen atoms.

On the other side, we have 8 carbon atoms and 18 hydrogen atoms + 16 hydrogen atoms.

Therefore, even though the coefficients are different there is still an equal number of atoms on each side.

8 Carbon Monoxide , 34 Dihydrogen = 8 Carbon Monoxide + 34 Dihydrogen

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What does an element's location in the periodic table tell you about that element?

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Answer:

There are different explanations but the main one is the number of electrons the element has.

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3 years ago

How many grams of ethanol, CH3CH2OH, should you dissolve in water to make 0.800 L of vodka (which is an aqueous solution that is

Rashid [163]

Answer:

252.5g

Explanation:

Given parameters:

Volume of vodka = 0.8L

Molarity of ethanol = 6.86M

Unknown:

Mass of ethanol = ?

Solution:

Molarity is one of the ways of expressing concentration. It is the number of moles of a substance in a solution.

Since Vodka = ethanol + water = solution

Molarity = $\frac{number of moles of ethanol}{Volume of solution}$

Number of moles of ethanol = molarity of vodka x volume of solution

Once we obtain the number of moles, we can derive the mass of the ethanol;

Number of moles = 6.86M x 0.8L = 5.49moles

Mass of ethanol = number of moles x molar mass

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Mass of ethanol = 5.49 x 46 = 252.5g

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4 years ago

What is the proper value for C in the above table. A. 28 B. 30 C. 32 D. 65

Alex Ar [27]

Answer:

Explanation:

electron = atomic number - charge(if the charge is positive and addition if the charge is negative)

electron = 30 - 2

electron = 28

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3 years ago