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mina [271]
3 years ago
14

Calculate the [H3O+] of an aqueous solution that is 1.94 x 10-7 Min OH.

Chemistry
1 answer:
timurjin [86]3 years ago
4 0
I don’t know I have an f in math
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In a certain chemical reaction, 2 solid Mg atoms bond with O2 gas to produce solid
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Answer:

Option B. 2Mg(s) + O2 (g) —> 2MgO (s)

Explanation:

From the question given above,

We were told that:

2 solid Mg atoms bond with O2 gas to produce solid MgO.

This can be represented by an equation as follow:

2Mg(s) + O2 (g) —> MgO (s)

Next, we shall balance the above equation as follow:

2Mg(s) + O2 (g) —> MgO (s)

There are 2 atoms of Mg on the left side and 1 atom on the right side. It can be balance by putting 2 in front of MgO as shown below:

2Mg(s) + O2 (g) —> 2MgO (s)

Now, the equation is balanced.

8 0
3 years ago
A gravel can be broken down into different kinds of substances by physical processes. No chemical reactions are needed to separa
butalik [34]

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heterogenous mixture

Explanation:

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What is the total number of moles contained in 115g of C2H5OH?
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What is the least polar solvent /solvent system used to run the tlc?
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The density of benzene at 15 ∘C is 0.8787 g/mL. Calculate the mass of 0.1200 L of benzene at this temperature.
Pavel [41]
Use the density to convert volume into mass. 

since the density is in g/ml and the volume was given in Liters, we need to first convert the Liters into mililiters. just multiply by 1000 or move the decimal three times.

0.1200 Liters= 120.0 mL

120.0 mL (0.8787 grams/ 1 mL)= 105 grams
3 0
3 years ago
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