10th grade chemistry

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals. Examples include boron (B), silicon (Si), and germanium (Ge).

Front

Which combination forms an ionic compound?

Back

An ionic compound is formed when a metal combines with a nonmetal.

Front

How many significant figures are in the number 0.0056?

Back

The number 0.0056 has 2 significant figures.

Front

What type of change occurs when water boils?

Back

Boiling water is an example of a physical change.

Front

Do liquids have a definite shape and volume?

Back

False, liquids have a definite volume but take the shape of their container.

Front

What is the definition of an ionic bond?

Back

An ionic bond is a chemical bond formed between two ions with opposite charges, typically between a metal and a nonmetal.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in the formation of new substances, while a physical change does not alter the chemical composition of a substance.

Front

What is the definition of a chemical property?

Back

A chemical property is a characteristic of a substance that can only be observed during a chemical reaction, such as reactivity with acid.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number, showing periodic trends in properties.