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mars1129 [50]
3 years ago
9

Identify each of the following as element, compound, homogenious mixture or heterogenios mixture.

Chemistry
1 answer:
Softa [21]3 years ago
8 0
They are all Correct
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What happens in the process of polymerization?
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Answer:

Polymerization, any process in which relatively small molecules, called monomers, combine chemically to produce a very large chainlike or network molecule, called a polymer

Explanation:

5 0
3 years ago
In hydrate ratio does the mass of salt come first or does the mass of water
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CuSO4 *5H20
In the formula of the hydrate, on the first place is the salt and on the second of water. so in ration on the first place should be salt also.
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Explain how to convert a mass of compound A to a mass of compound D in words with no equations using the following reaction 2A +
leonid [27]

Answer:

Explanation:

The given reaction equation is:

                2A + 4B → C + 3D

We know the mass of compound A in the reaction above. We are to find the mass of compound D.

We simply work from the known mass to calculate the mass of the unkown compound D

Using the mole concept, we can find the unknown mass.

Procedures

  • We first find the molar mass of the compound A from the atomic units of the constituent elements.
  • We then use the molar mass of A to calculate its number of moles using the expression below:  

            Number of moles of A = \frac{mass of A}{molar mass of A}

  • Using the known number of moles of A, we can work out the number of moles of D.

           From the balanced equation of the reaction, it is shown that:

         2 moles of compound A was used up to produced 3 moles of D

  Then \frac{3}{2} x number of moles of A would give the number of moles of D

  • Now that we know the number of moles of D, we can find its mass using the expression below:

             Mass of D = number of moles of D x molar mass of D

8 0
3 years ago
Using the activity series provided. Which reactants will form products? Na > Mg > Al > Mn > Zn > Cr > Fe >
Elodia [21]

Answer:

Fe + Cu(NO3)2 →

Explanation:

3 0
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How many neutrons are in selenium -36?
Soloha48 [4]

Selenium (Se)  the most common isotope of this element. The nucleus consists of 34 protons (red) and 46 neutrons (blue).

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3 years ago
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