2 years ago

In an endothermic reaction which bonds are stronger? The reactants or products? Explain

Chemistry

1 answer:

Marina86 [1]2 years ago

6 0

reactants because it had other chemicals, when more are mixed it will be more stronger.

It is the correct answer

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Which of the following are likely to form a covalent bond?

Marat540 [252]

hydrogen and oxygen atoms

Explanation:

this is because they are non metals and there will be sharing of electrons between the two atoms forming the bond

4 0

2 years ago

Substance X is a compound containing 632mg of manganese and 368mg of oxygen. Substance X is shown

defon

The empirical formula : MnO₂.

<h3>Further explanation</h3>

Given

632mg of manganese(Mn) = 0.632 g

368mg of oxygen(O) = 0.368 g

M Mn = 55

M O = 16

Required

The empirical formula

Solution

You didn't include the pictures, but the steps for finding the empirical formula are generally the same

Find mol(mass : atomic mass)

Mn : 0.632 : 55 = 0.0115

O : 0.368 : 16 =0.023

Divide by the smallest mol(Mn=0.0115)

Mn : O =

$\tt \dfrac{0.0115}{0.0115}\div \dfrac{0.023}{0.0115}=1\div 2$

The empirical formula : MnO₂

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3 years ago

Using the difference of electronegativities, determine whether each bond will be nonpolar covalent, polar covalent, or ionic. Sh

kati45 [8]

Answer:

Explanation:

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3 years ago

Which one is correct for number 6 I can’t decide

nadezda [96]

I'm pretty sure it's D .

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3 years ago

How many grams does f Cacl2 should be dissolved in 750.0 mL of water to make a 0.100 M solution Cacl2

AVprozaik [17]

Answer:

8.324 g

Explanation:

First we convert 750.0 mL into L:

750.0 mL / 1000 = 0.750 L

Then we calculate the required number of moles of CaCl₂, using the definition of molarity:

Molarity = moles / liters

Molarity * liters = moles

0.100 M * 0.750 L = 0.075 mol

Finally we convert 0.075 moles of CaCl₂ into grams, using its molar mass:

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6 0

3 years ago