Which of these equations represents a displacement reaction?

Copper + oxygen → copper oxide

Zinc + copper sulfate → zinc sulfate + copper

Sodium + water → sodium hydroxide + water

Which of the following is not true of a pseudoscience? It is a practice or belief that claims to be science, It does not follow the scientific method, It is not proven reliable through experimentation, It is a science that is controversial or

What type of population dispersion pattern do people have in Europe? A. Random dispersion B. Uniform dispersion C. Scattered dispersion D. Clumped dispersion

Calculate the molarity of the solution. 29 g of NaCl (g. f. w. = 58.5 g/mol) in 0.030 liters. 0.015 M 17 M 67 M

Which of the following is a mixture? Gold Honey Steel Water

Explain why alcl3 is called "aluminum chloride" (no prefix required) but ncl3 is called "nitrogen trichloride."

It would take one light year to travel to the sun? True or false?

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

When does hail happen?

For the reaction, calculate how many moles of the product form when 0.012 mol of O2 completely reacts. Assume that there is more than enough of the other reactant. 4Al (s) + 3O2 (g) →2Al2O3 (s) Express your answer using two significant figures.

Nuclei with too many or too few neutrons are?