What is the narrowest pH range possible?

An atom has at least one positive proton and at least one negative electron. Which of the following is true about the protons and electrons in an atom? A. Protons and electrons are far apart with empty space in between. B.

At constant temperature what happens to the pressure when the volume is doubled

Match the reaction on the top with the corresponding reaction on the left. * hydrogen gas + oxygen gas → water gas 2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g) When methane burns, it reacts with oxygen to produce water and carbon dioxide water →

Butter is melted in a pan. Which of the following is true about the change? A. It is a physical change that releases energy B. It is a chemical change that absorbs energy C. It is a physiscal change that absorbs energy D.

As the amount of charge on two objects increases, the strength of the electrical force between the objects O increases O decreases. O varies O remains the same

What three human body systems coordinate cause an arm to move

Which statement does NOT apply to Alkenes? They readily react They have double bonds They are more stable than alkanes They are unsaturated

Why do scientists say that this technology will not harm fish in the area?

What is the primary cause of global wind patterns on earth?

What is the central argument about global warming