Recovery for Polyatomic Rules assignment

Recovery for Polyatomic Rules assignment

12th Grade

10 Qs

quiz-placeholder

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Recovery for Polyatomic Rules assignment

Recovery for Polyatomic Rules assignment

Assessment

Quiz

Chemistry

12th Grade

Medium

Created by

Stacey Kohler

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name this: H4C

hydrogen chloride

methane

chloric acid

hydrogen carbide

tetrahydrogen carbide

Answer explanation

If you chose hydrogen chloride, there's no l in the formula, that's carbon, not chlorine. If you chose methane, please explain to me how you learned organic chemistry. If you chose chloric acid, where have you ever heard of that? If you chose tetrahydrogen carbide, I can understand that, it's tricky! Hydrogen is in the front, so it's acting like a metal.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name this: H2SO4

hydrogen sulfur oxygen

sulfone

sulfuric acid

hydrogen sulfite

hydrogen sulfate

Answer explanation

If you chose hydrogen sulfur oxygen, nothing in this class has 3 names. As soon as you see the third element, you should look at your polyatomic ion sheet. If you chose sulfuric acid, please explain to me how you learned the acid naming rules and explain them to me. If you chose sulfone when did you study organic chemistry? If you chose hydrogen sulfite, I can understand that, it's tricky! Sulfate is SO4, sulfite is SO3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name this: AgNO3

argon nitride

argon nitrate

silver nitrogen oxygen

silver nitrate

argon nitrogen oxygen

Answer explanation

No compound in this class will have three names; as soon as you see the third element, you should go for your polyatomic ion sheet. Ag is silver, not argon - easy mistake to make, but one you have to be aware of!

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name this NH3

ammonium

ammonia

nitrogen hydride

nitrogen trihydride

nitrogen hydrogen

Answer explanation

If you chose ammonium, you're close but no. Ammonium is NH4. If you chose nitrogen hydrogen, remember that the last name always ends in -ide or -ite or -ate. If you chose nitrogen hydride, remember that these are both non-metals, so you need a prefix. If you chose ammonia, you need to start using your brain and your notes instead of google.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

choose the formula for hydrogen peroxide

HO

(H2) (O2)

HO2

H2O2

H2 O2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

choose the formula for sodium bicarbonate

Na2CO3

(Na) (HCO3)

NaHCO3

Na(CO3)2

Na HCO3

Answer explanation

Stop putting spaces in chemical formulas.

Don't use parentheses unless you need multiple copies of a polyatomic ion.

Balance the charges - the charges are listed at the top of the column on the polyatomic ion sheet; you don't have to calculate them. The number of oxygens isn't the charge and it isn't the number of copies of that ion; it's just the number of oxygens in that ion.

Polyatomic ions don't use prefixes, so "bicarbonate" doesn't mean 2 carbonates. It's a separate ion - it's in the -1 column, towards the top.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

choose the formula for beryllium carbonate

Be2CO3

(Be) (CO3)

BeCO3

Be3(CO3)2

Be2(CO3)4

Answer explanation

Stop putting spaces in chemical formulas.

Don't use parentheses unless you need multiple copies of a polyatomic ion.

Balance the charges - the charges are listed at the top of the column on the polyatomic ion sheet; you don't have to calculate them. The number of oxygens isn't the charge and it isn't the number of copies of that ion; it's just the number of oxygens in that ion.

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