Atoms
Elements and compounds
Bonds and Chemical Reactions
Chemical Reactions
Chemical Reactions, Water and Solutions
100

What is the building blocks of matter

Atom

100

What is element?

Pure substances that cannot be broken down into other substances by physical or chemical means.

100

What is an atom that has lost or gained one or more electrons?

Ion

100

What is the substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation?

Products

100

What is the specific location where a substrate binds on an enzyme?

Active Site

200

This is where the neutrons and protons are located. 

Nucleus

200

Why is water considered a polar molecule?

It has slightly positive and negative charge. 

200

What is an electrical attraction between two oppositely charged atoms or groups of atoms called ions?

Ionic bond

200

What is the minimum amount of energy needed for reactants to form products in a chemical reaction?

Activation Energy

200

What is polar molecules?

These are molecules that have an unequal distribution of charges. 

300

What are positively charged particles?

Protons

300

What is a pure substance formed when two or more different elements combine?

Compound

300

Give examples of acidic solution.

sulfuric acid, citric acid, hydrochloric acid, nitric acid, and acetic acid.

300

What is a substance that lowers the activation energy needed to start a chemical reaction?

Catalyst

300

What is a weak interaction involving a hydrogen atom and fluorine, oxygen, or nitrogen atom. 

Hydrogen Bond

400

What are particles that have no charge?

Neutrons

400

What is the chemical bond that forms when electrons are shared?

Covalent Bond

400

What is the process by which atoms or groups of atoms in substances are recognized into different substances?

Chemical Reaction

400

What is he biological catalysts that speed up the rate of chemical reactions in biological processes?

Enzymes

400

What is a combination of two or more substances in which each substance retains its individual characteristics and properties.

Mixture 

500

What are negatively charged particles that are located outside that nucleus?

Electrons

500

What is a compound in which the atoms are held together by covalent bonds?

Molecule

500

What is the substance that exits before a chemical reaction starts; located on the left side of the arrow in a chemical reaction?

Reactants

500

What is he reactants that bind o the enzyme?

Substrates

500

What is a substance in which another substance dissolved?

Solvent

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