Chemistry

What is an atom?

• The smallest unit of an element that retains the properties of that element.

• A particle that is larger than a molecule.

• A type of chemical bond between two elements.

• A form of energy that can be harnessed.

What is an ionic bond?

• A type of bond formed when electrons are shared between atoms, typically between two non-metals.

• A type of bond formed when electrons are transferred from one atom to another, typically between a metal and a non-metal.

• A type of bond that involves the attraction between positively and negatively charged ions without electron transfer.

• A type of bond that occurs only in gaseous states of matter.

What is matter?

• Anything that takes up space and has mass.

• A substance that can be seen but not touched.

• An object that has weight but no volume.

• A form of energy that can be converted into mass.

What is a physical property?

• A property that can be observed without changing the substance's chemical identity.

• A property that describes how a substance reacts with other substances.

• A property that can only be observed during a chemical reaction.

• A property that is always visible to the naked eye.

What is a chemical property?

• A property that can only be observed by changing the substance into a new substance.

• A property that can be observed without changing the substance.

• A property that describes the physical appearance of a substance.

• A property that is always constant regardless of the substance.

What are valence electrons?

• Electrons in the outermost shell of an atom that are involved in forming bonds.

• Electrons that are found in the nucleus of an atom.

• Electrons that are responsible for the mass of an atom.

• Electrons that are always in motion around the nucleus.

What determines whether or not bonds form between atoms?

• Atomic mass

• Valence electron configurations

• Nuclear charge

• Molecular weight

What is a compound?

• A substance formed when two or more different elements are chemically bonded together.

• A mixture of two or more substances that retain their individual properties.

• A single element that cannot be broken down into simpler substances.

• A solution where one substance is dissolved in another.

What is a chemical reaction?

• A process that involves the rearrangement of the molecular or ionic structure of a substance, resulting in the formation of new substances.

• A method of separating mixtures into their individual components.

• A technique used to measure the temperature of a substance.

• A way to increase the pressure of a gas without changing its volume.

What is a mixture?

• A combination of two or more substances that are not chemically bonded and can be separated by physical means.

• A single substance that cannot be separated into its components.

• A chemical reaction between two or more substances.

• A solution where one substance is dissolved in another.