Semester Test - Fall 2019

Ammonia was the stinky liquid we tested in our lab. Is it an acid or a base?

What is often called the "universal solvent?'

Where are acids on the pH scale?

A negatively charged ion is called __________.

Which is an example of a base?

What number is water on the pH scale?

In a solution of Kool-aid, which is the solvent?

An atom that has too many or too few electrons is called _________.

Which tastes sour?

One part of the cell theory is that all living things are made of _________.

Which of the following is an example of a homogeneous mixture?

The measure of how easy a substance dissolves into another substance is called _________.

The part of an atom that has a positive charge is called ________.

The substances produced by a chemical reaction are called _________.

Where are bases on the pH scale?

A _______ is a mixture in which 2 or more substances are evenly mixed and appear to be one substance.

In a solution of salt and water, which is the solute?

Which of the following is an example of a heterogeneous mixture?

The ______ is the fluid inside a cell that surrounds the organelles and contains salts and other molecules.

The _______ are organelles that use light energy to make food (called glucose) in a process called photosynthesis.

This states that the mass of the reactants before a chemical reaction is the same as the mass of the product(s).

All cells have ______.

What is the temperature in the thermometer shown in degrees Fahrenheit?

Which of the following is an example of a physical change?

Which of the following is a solid solution?

Which part of an atom has a negative charge?

_________ are macromolecules that do not dissolve in water and are an important part of cell membranes.

Which of the following is an example of a physical change?

Which feels slippery?

The process in which atoms of 1 or more substances rearrange to form 1 or more NEW substances ________.

Which of the following is an example of a chemical change?

A positively charged ion is called _________.

The main ingredient in any cell is ______.

The starting substances in a chemical reaction are called ________.

The area in the center of an atom where most of the mass is concentrated is called _____.