Fall Semester Review

Front

Write in standard form: 8 x 10^4

Back

80,000

Front

Write the formula for nitrogen trichloride

Back

NCl3

Front

Ketchup is an example of...

Back

a mixture

Front

What element has the most similar physical and chemical properties to Lithium (Li)?

Back

Sodium (Na)

Front

What is 7.535 rounded to two significant figures?

Back

7.5

Front

What is standard form in mathematics?

Back

A way of writing numbers using powers of ten.

Front

Define a mixture.

Back

A combination of two or more substances that retain their individual properties.

Front

What is the chemical symbol for Sodium?

Back

Na

Front

What is the significance of significant figures in measurements?

Back

They indicate the precision of a measurement.

Front

How do you convert a number to standard form?

Back

Move the decimal point to create a number between 1 and 10, then multiply by a power of ten.