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Crank
3 years ago
9

Which of these outcomes is conclusive evidence that mixing sugar in water is a physical change?

Chemistry
1 answer:
Alika [10]3 years ago
3 0
Well this can actually be A and C but I would go with C

(Reasoning) Well no change in color means that it is physical not chemical
and no gas also means physical not chemical
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3 years ago
How many moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen gas?
Marysya12 [62]

4 moles of water are produced

Explanation:

  • 4 moles of water are produced when 5 moles of hydrogen is reacted with 2 moles of oxygen gas
  • The balanced equation given is when 2 moles of hydrogen reacts with 1 mole of oxygen and it forms 2 moles of water.
  • The equation we have to solve is the 5 moles of hydrogen is reacting with 2 moles of oxygen gas, we can write the equation as 5H_{2} +2O_{2} -->  4H_{2} O + H_{2}
  • This is the balanced equation when 5 moles of hydrogen reacts with 2 moles of oxygen. The balanced equation means the number of hydrogen atoms and oxygen atoms on both sides would be equal in number.
4 0
4 years ago
The ions Cr3+ and O2- combine to form the ionic compound chromium oxide. In what proportions do these ions combine to produce a
VMariaS [17]
<span>Cr3+ O2- ; the formula is Cr2O3 ( criss cross)</span>
7 0
3 years ago
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What is the name given to the ions of the halogens on the periodic table?
WARRIOR [948]

Answer:

halides

Explanation:

This is one electron away from having a full octet of eight electrons, so these elements tend to form anions having -1 charges, known as halides: fluoride, F-; chloride, Cl-, bromide, Br-, and iodide, I-. In combination with other nonmetals, the halogens form compounds through covalent bonding.

7 0
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According to table f which ions combine with chlorine ions to form an insoluble compound 1- Fe2+ions.
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4- Ag+ions thats the answer i hope its correct
7 0
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