To which group of the periodic table do lithium and potassium belong? halogens
transition metals
noble gases
alkali metals
What is the density of liquid water?
2 points
0.5 g/mL
5 g/mL
1 g/mL
0.92 g/ml
Which of the following element is a liquid at room temperature?
2 points
Chlorine
Gold
Iron
Mercury

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

How does a noncompetitive inhibitor reduce an enzyme’s activity?