Counting Atoms Flashcard

Front

How many elements are in C₆H₁₂O₆?

Back

3

Tags

NGSS.MS-PS1-1

Front

The blue numbers in a chemical formula represent ________

Back

subscripts

Front

The red numbers in a chemical formula represent ________

Back

coefficients

Front

Is O₂ an element or a compound?

Back

Element

Tags

NGSS.MS-PS1-1

Front

How many hydrogen atoms are in 3(NH₄)₂CrO₄?

Back

24

Tags

NGSS.MS-PS1-1

Front

What is a subscript in a chemical formula?

Back

A number written below and to the right of a chemical symbol indicating the number of atoms of that element in a molecule.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules are involved in the reaction.

Tags

NGSS.MS-PS1-5

Front

What does the formula H₂O represent?

Back

Water, which consists of 2 hydrogen atoms and 1 oxygen atom.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

How many total atoms are in the molecule C₆H₁₂O₆?

Back

24 (6 Carbon + 12 Hydrogen + 6 Oxygen)

Tags

NGSS.MS-PS1-1