Test 3 fall 2024 Not edited

Front

How many Hydrogen atoms (H) are in a molecule of H₂O?

Back

2

Front

In the compound 6NaCl, how many Sodium (Na) atoms are present?

Back

6

Front

What was the net loss in glacier ice thickness between the years 1980 and 1990?

Back

2m

Front

What is the atomic number of Carbon?

Back

6

Front

How many elements of carbon (C) are in C₆H₁₂O₆?

Back

6

Front

What is the chemical formula for water?

Back

H₂O

Front

What is the definition of a molecule?

Back

A molecule is a group of two or more atoms bonded together.

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.

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in the nucleus of an atom.

Front

What is the formula to calculate the number of atoms in a compound?

Back

Count the coefficients and subscripts in the chemical formula.