2.1 Metals Answers

A substance occupies one half of an open container. The atoms of the substance are closely packed but are still able to slide past each other.What is most likely the phase of the substance?

Sari is studying four different samples of materials. This table shows the mass and volume of the samples.

Which describes a feature of the physical changes of all substances?

The density of solid aluminum is 2.70 g/cm3. If a 1g piece of aluminum is dropped in a cup of water, what will happen to the aluminum? (The density of water is 1.00 g/cm3.)

Kendra conducts an experiment. She mixes two chemicals, resulting in a chemical reaction. Based on Kendra’s experiment, what can be concluded about the original matter before mixing?

The density of an object is .835 g/cm3. If its volume is 34 cm3, what is the mass of the object? (Density: D = )

What is the density of a 700 kg object with a volume of 649 m3? (Density: D = )

A change in color indicates that what has occurred?

Three grams of the same substance in different phases are stored in three different containers. Each container is barely large enough to hold the substance.Which statement can be known about the behavior of the atoms in each container?

Which is most likely a physical change?

Which would show an example of how physical changes are reversible?

Venn diagrams are used for comparing and contrasting different topics. The overlapping sections show characteristics that the topics have in common, and the sections that are unique to each topic show the characteristics apply to only that topic.

Which refers to any characteristic of matter that describes its ability to change into a different substance?

Carbonic acid reacts with sodium hydroxide to form water and sodium carbonate and water. Carbonic acid has a density of 1.67 g/cm3, and sodium carbonate has a density of 2.54 g/cm3.

If two items are equal in size, the denser one will

A column is filled with four different liquids of different densities. A red liquid, a blue liquid, a green liquid, and a purple liquid are all added into the column. This chart shows the densities of the liquids.In what order would the liquids arrange themselves, from top to bottom?

At which stage does a gas form in a gas formation reaction?

A ________ in matter results in a change in its identity and properties.Which best completes the statement?

Cubes are three-dimensional square shapes that have equal sides. What is the density of a cube that has a mass of 12.6 g and a measured side length of 4.1 cm? (Density: D = )

Which statement best describes the atoms of the gas neon?

Indicators change color when an acid and a base are mixed together. The change in color most likely indicates that

Which statement about the physical change of liquid water boiling into steam is true?

Which liquid is the most viscous?

A chemist mixes oxygen gas and hydrogen gas to form water, which is composed of one oxygen and two hydrogen atoms per molecule. What has occurred?

Which best describes why a liquid needs a container when a solid does not?