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marta [7]
3 years ago
8

5. Complete and balance an equation for each reaction:

Chemistry
1 answer:
Kipish [7]3 years ago
6 0

CaI₂ + Hg(NO₃)₂ --------->HgI₂ + Ca(NO3)2

2Al + 3Cl₂ --------->2AlCl3

Ag + HCl ------->AgCl + H2

C2H2 + 5O2 --------> 4CO2 + 2H2O

MgCl₂ --------->Mg + Cl2

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This is propane  burning in air or pure oxygen.

4 0
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The sum of the protons and neutrons in an atom is called the atomic number <br> True or False
olganol [36]
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3 0
3 years ago
What is the density of a substance that has a mass of 453g and a volume of 224mL?
Savatey [412]
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7 0
3 years ago
Javier and Jessica are measuring the water temperature of a stream. Javier records the water temperature at 56°. Jessica tests t
Dominik [7]

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Explanation:

7 0
3 years ago
A salt is known to be an alkali metal fluoride. A quick approximate determination of freezing point indicates that 4 g of the sa
nexus9112 [7]
For the answer to the question above, I can't help you directly because I don't have a calculator right now. But I'll show you how to solve this.
<span>use the freezing point depression formula for this one: delta T = i * m * K where K is a constant, m is the molality (mol solute/kg solvent), and i is the van'hoff factor the van hoff factor is the number of ions that your salt dissociates into. Since it's an ALKALI flouride salt, how many ions? k is just a constant, you get it from a table in your textbook somewhere So you have everything to solve for the molality of the solution, once you did that, multiplying it by the mass of water to find the mols of the salt. Take the mass of the salt and divide by this mols to figure out the molar mass, and then compare it with the periodic table to identify the salt.
</span>
<u>Mole solute</u>   x  mass of Water  = Mol solute<u>
</u>kg Solvent

then 

Mass of solute  x  <u>            1             </u>   =  molar mass
                               mole of solute

4 0
3 years ago
Read 2 more answers
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