Benchmark Review 2024-2025

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

How do you calculate the density of an object?

Back

Density = Mass / Volume. Measure the mass in grams and the volume in milliliters to find density in g/mL.

Front

What is the significance of the periodic table's groups?

Back

Elements in the same group have similar chemical properties and the same number of valence electrons.

Front

What is a property of metals in group 2 of the periodic table?

Back

They are very reactive metals, often forming compounds with nonmetals.

Front

What happens to the volume of water when an object is submerged in it?

Back

The volume of water rises by an amount equal to the volume of the submerged object.

Front

What is the relationship between mass and density?

Back

For a given volume, an increase in mass results in an increase in density.

Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.

Front

What does it mean for an element to be reactive?

Back

A reactive element readily forms chemical bonds with other elements, often resulting in chemical reactions.

Front

How can you determine if an object is denser than water?

Back

If the object sinks in water, it is denser than water; if it floats, it is less dense.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an element reacts chemically with other elements.