Nitrogen + oxygen → nitrogen dioxide

Which of these is a reactant in this chemical reaction?

A) H2O

B) N2

C) N2O

D) NO2

A strong monoprotic acid ionizes in water. If the [H3O+] concentration is 1.56 x 10^-4 M, what else is true? pH = 10.19 The solution contains more hydronium ions than hydroxide ions. pOH = 1.

Which of the following statements about scientific models is true? a. Models are useful only if you can hold them in your hands. b. models are useful only if they can be used to explain or make predictions about something c.

Which of the following is least to produce potentially harmful products or byproducts? A. Radioactive decay B. Nuclear fusion C. Uncontrolled nuclear fission D. controlled nuclear fission

What is the name of the supercontinent that existed 245 million years ago

Which of the following metals is most reactive? A. aluminum B. sodium C. copper D. calcium

How do plants dissolve rock?

What can you predict from an element's location on the periodic table? it's properties it's chemical name it's chemical symbol when it was discovered

What describes the current model of the atom? A) That electrons and protons move randomly around a nucleus. B) Electrons travel as waves in the electron cloud that surrounds the nucleus. C) Electrons orbit the nucleus like planets orbit the sun.

When the concentration of cl - (aq) is increased the concentration of ag + (aq) ?

The Hoover Dam in Nevada, supplied by Lake Mead, generates hydroelectric power for several western states, including the numerous lights in Las Vegas.