Flashcard #3- Sc. Measurement

Front

What is the formula to calculate density?

Back

Density = Mass / Volume

Front

If a block of wood has a density of 0.6 g/cm³ and a mass of 120 g, what is its volume?

Back

200 cm³

Front

What is the law of definite proportions?

Back

In a chemical compound, the elements are always combined in fixed proportions by mass.

Front

Calculate the percent by mass of H and Cl in HCl.

Back

H 2.8 %, Cl 97.2 %

Front

What state of matter has particles that vibrate in place?

Back

Solid

Front

Which of the following is not a chemical property: rusting, boiling, rotting, burning?

Back

Boiling

Front

What is the definition of a chemical property?

Back

A characteristic of a substance that becomes evident during a chemical reaction.

Front

What is the definition of a physical property?

Back

A characteristic that can be observed or measured without changing the substance's composition.

Front

What is the significance of significant figures in measurements?

Back

They indicate the precision of a measurement.

Front

What is the unit of density in the metric system?

Back

g/cm³ or kg/m³