Chemistry FINAL EXAM

Front

A wave with a large wavelength will have a ______ frequency and _____ energy.

Back

low frequency and low energy.

Front

What is the molecular shape of water (H₂O)?

Back

Bent.

Front

How many significant figures are in the measurement 216 m?

Back

3 significant figures.

Front

How many significant figures does the number 0.002040 have?

Back

4 significant figures.

Front

The lower the frequency, the ______ the energy.

Back

lower the energy.

Front

Define wavelength in the context of waves.

Back

Wavelength is the distance between successive crests of a wave.

Front

What is the relationship between frequency and energy in waves?

Back

Higher frequency waves have higher energy.

Front

What is a significant figure?

Back

A significant figure is a digit that contributes to the precision of a measurement.

Front

How do you determine the number of significant figures in a number?

Back

Count all non-zero digits, any zeros between them, and trailing zeros in the decimal portion.

Front

What is the molecular shape of carbon dioxide (CO₂)?

Back

Linear.