When someone's immune system overreacts to something harmless it's called:

A. A sneeze

B. The measles

C. An allergy

D. Overreactus maximus

Aqueous potassium phosphate reacts with aqueous aluminum chloride to form aqueous potassium chloride and solid aluminum phosphate. Write the balanced chemical equation for the reaction. Include physical states.

A normal concentration of glucose, or sugar, in the blood is 95 mg/dl. how many grams of sugar would be present per liter of blood? show the conversion factors you use.

Kelly is putting up tile on a wall in a bathroom. The wall is 3.6 m long. Each tile has a length of 40 cm. How many tiles will Kelly be able to fit along the length of the wall?

How is the telegraph you made like the one morse made?

Determine the number of atoms in a 48.3-g sample of zinc. express your answer in zinc atoms using scientific notation.

What does the number next to the ion signify?

Write a molecular equation for the precipitation reaction potassium chloride and lead (II) acetate

Which outcome is not caused by gravitational force?

Explain the properties of the substance around us depend on the atoms and molecules that compose them

What is an ion (1 mark) what is the charge on a chloride ion (1 mark) what is an ionic bond (1 mark)