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3 years ago

Help! I am in a hurry! Will get brainliest if correct!

Chemistry

2 answers:

satela [25.4K]3 years ago

5 0

Answer:

Its a non-metal

Explanation:

Elements that tend to gain electrons to form anions during chemical reactions are called non-metals. These are electronegative elements. They are non-lustrous, brittle and poor conductors of heat and electricity (except graphite). Non-metals can be gaseous, liquids or solids.

sashaice [31]3 years ago

3 0

Answer:

nonmetel

Explanation:

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Find the number of moles of water that can be formed if you have 210 mol of hydrogen gas and 100 mol of oxygen gas.

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kvv77 [185]

Answer:

The mass percent of Al(OH)₃ is 15.3%

Explanation:

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Al(OH)₃ + 3HCl = AlCl₃ + 3H₂O

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The difference between the total and excess of HCl, it can be know the moles that reacts with the aluminum hydroxide, is:

$n_{HCl,reacts} =n_{HCl,total}-n_{HCl,excess} =2.78x10^{-3} moles-1.46x10^{-3} moles=1.32x10^{-3} moles$

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