A biologist believes that a certain chemical causes rapid growth in roses. Several roses will be divided into either an experimental group or a control group to test this hypothesis. Which of these scenarios is the best way for the biologist to design the experiment?

The following is an example of what type of reaction: C2H8+ 8O2 → 4H2O + 2CO2

Identify the product(s) in the following chemical equation: 2H2O2 → 2H2O + O2

What is the dependent variable in a scientific experiment?

In a combustion reaction, a compound always burns in the presence of what element?

Which of these substances is an element?

In a chemical reaction, what are the ending substances called?

When water freezes, it _________________.

Which of the following is a true statement based on the law of conservation of mass?

The following is an example of what type of reaction: CH4 + 2O2 → 2H2O + CO2