7.6B, 8.6B & 8.6E Quizizz Questions

7.6B, 8.6B & 8.6E Quizizz Questions

18 Qs

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7.6B, 8.6B & 8.6E Quizizz Questions

7.6B, 8.6B & 8.6E Quizizz Questions

Assessment

Quiz

others

Hard

Created by

Tonya Sullivan

FREE Resource

18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

What do scientists use to identify the elements present in a molecule?
chemical symbol
subscript
elements in Group 18
chemical formula

2.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

When do we use parentheses in a chemical formula?
any time there is a subscript
only when we have a coefficient
when there is a special subgroup of atoms
whenever there is an invisible “1”

3.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

What does a subscript tell us?
how many atoms of each element are in a molecule
the charge of the ion
the amount of molecules in a reaction
the atomic number of the element

4.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

What are chemical formulas made up of?
electrons and coefficients
chemical symbols and subscripts
molecules and elements
atoms and electrons

5.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

If there is no number after a chemical symbol, how many atoms of that element are there?
0
1
2
We do not know how many.

6.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

When are parentheses needed in a chemical formula?
never
always
to group certain atoms together
when there is an invisible “1”

7.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

What inspired Dmitri Mendeleev to create the periodic table?
He wanted to win a scientific competition.
He noticed patterns and connections among elements.
He was trying to create a new type of element.
He was following the instructions of his professor.

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