Changes to Matter Scope Assessment

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When baking soda and vinegar are mixed, a gas is formed. This is known as a -

A student placed a beaker of water near a window in the classroom and recorded the volume of the water for 3 weeks. Week 1 it was 100 mL Week 3 it was 22mL. What volume of liquid water was converted to water vapor that entered the air over the weeks?

A student places 100 grams of water and 50 grams of ice into a beaker. Which of the following is the best prediction for the mass of the contents of the beaker after the ice has melted into the water?

A crayon was left in a hot car for several sunny days. The crayon most likely

A student has a dish with a mass of 72 grams. The students places 12 grams of butter in the dish and melts the butter. Which of the following best describes the mass of the dish and butter together before and after melting?

A student dissolved sugar into 300 mL of water. The mass of the water is 300 grams and the mass of the beaker is 24.7 grams. What was the mass of the sugar that was dissolved into the water?

When lemon juice and baking soda are mixed, a chemical change occurs. when this happens the mass-

Melting and freezing will cause a change in the-