I NEED HELP ASAP PLZ & TY An experiment was performed to determine how the amount of catalyst could affect the rate of a reaction. The same masses of both reactants, and temperature of solutions were used.

What is the independent variable, dependent variable, control, and constant.

What is a possible hypothesis?

What is a possible research question?

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Nonpoint source pollution is difficult to control because it