Venus is making soup. She is putting her ingredients into a pot of water. She places small amounts of the ingredients into water and heats up the pot on the stove. She slowly stirs the pot on the stove. What should Venus do to speed up the rate the ingredients are dissolving? A She should place larger amounts of ingredients into the water.
B She should take the pot off of the heat to lower the temperature.
C She should place the pot in the fridge to cool it down.
D She should stir the pot of ingredients faster.

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size