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6.5 C Elements and Compounds

Authored by Anastacio Gaytan

Chemistry

6th - 8th Grade

Used 12+ times

6.5 C Elements and Compounds
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3 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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Some students are using samples of different substances for a lab investigation. They plan to observe the physical properties of each substance and record their observations in a table like the one shown.

Which of the substances observed are elements?

S, Fe, O2, Sr, and Al

S, O2, and LiF

N2, O4, O2, and LiF

N2O4, Fe, Sr, and Al

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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In the chemical reaction shown, the products are best classified as -

two elements

one element and one compound

two compounds

two compounds and one element

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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The chemical equation shown represents a reaction that produces fuel for certain cars.

Which substance represented in this equation is classified as an element?

CO

H2O

CO2

H2

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