Physical Changes
What is a change in matter that does not alter its chemical composition?
What is a physical change?
What type of change results in the formation of new substances?
What is a chemical change?
What is a homogeneous mixture of two or more substances?
What is a solution?
What is the term for the process of a solute dissolving in a solvent?
What is dissolution?
Name a common example of a physical change involving water.
What is melting, freezing, or boiling?
What are signs that a chemical change has occurred?
What are color change, gas production, or temperature change?
In a saltwater solution, what is the solute?
What is salt?
What happens to sugar when it dissolves in water?
What is the sugar molecules disperse throughout the water?
When ice melts into water, what type of change is occurring?
What is a physical change?
Give an example of a chemical change that occurs when cooking
What is baking a cake or frying an egg?
What is the process of mixing a solute into a solvent called?
What is dissolving?
What is an example of a substance that dissolves easily in water?
What is salt or sugar?
What happens to the molecules of a substance during a physical change?
What is their arrangement may change, but the substance remains the same?
What happens to the bonds between atoms during a chemical change?
What is they are broken and new ones form?
How does temperature affect the solubility of most solid solutes in liquids?
What is solubility generally increases with temperature?
Which effects the rate of dissolution more, temperature or stirring?
What is temperature?
Describe which change happens when paper is torn.
What is a physical change occurs because the paper's chemical composition remains unchanged?
Describe the process of rust forming on iron.
What is a chemical change involving a reaction with oxygen and moisture?
What is the term for a solution that has reached its maximum concentration of solute?
What is a saturated solution?
In what way does stirring affect the rate of dissolution?
What is stirring increases the rate by distributing solute molecules more evenly?