Which of the following is a characteristic of a molecule?

Consists of two or more atoms chemically bound together

Consists of only one kind of atom

Can be broken down by chemical means

Has properties identical to its components

What elements are present in this caffeine compound: C₈H₁₀N₄O₂

Calcium, Hydrogen, Neon, & Oxygen

Cobalt, Helium, Nickel & Osmium

The small number placed to the lower right of a chemical symbol gives the following information:

number of atoms of that element in the compound

number of elements in the compound

number of compounds in an element

One molecule of H₂SO₄ contains:

2 hydrogen atoms, 1 sulfur atom and 4 oxygen atoms

2 helium atoms, 1 sulfur atom, and 4 oxygen atoms

2 hydrogen atoms, 4 sulfur atoms and 4 oxygen atoms

The subscript 2 in H 2 O tells us

There are 2 atoms of hydrogen in one molecule of water

There are 2 atoms of oxygen in one molecule of water

There are 2 molecules of water present

The 2 tells me nothing, you wizard!

are made of two or more types of atoms chemically bonded together

are found on the periodic table

can be separated into their individual parts through physical means

The table lists the chemical formulas or symbols of a few common substances. Which two substances are compounds?

sodium chloride and carbon dioxide

Elements Molecules and Mixture Quiz-2024

Authored by Jennifer Nigro

Science

6th Grade

NGSS covered

Used 1+ times

Elements Molecules and Mixture Quiz-2024

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MULTIPLE CHOICE QUESTION

30 sec • 2 pts

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MULTIPLE CHOICE QUESTION

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element

solution

compound

atom

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carbon

hydrogen

nitrogen

oxygen

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elements

solution

compound

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What is the chemical formula for Ammonia, pictured below?

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30 sec • 2 pts

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NGSS.MS-PS1-1

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