Phenol red is a common ph indicator. you add phenol red to an unknown substance and it turns yellow. what does this indicate about the ph of the substance?

NaOH has a molarity of 2.5 M and a volume of 4 Liters, how many moles are in the solution?

At room temperature, which answer is the most compressible? one liter of water, a liquid one liter of oxygen, a gas one liter of iron, a solid one liter of mercury, a liquid

If 50.0 g of N2O4 is introduced into an empty 2.12 L container, what are the partial pressures of NO2 and N2O4 after equilibrium has been achieved at 45∘C?

What are easterlies?

What do you know about Relative Dating

How can hypothesis best be tested

Write a balanced equation for the combustion of 1 mol of C4H10O (l). Express your answer as a chemical equation. Identify all of the phases in your answer.

A thermonuclear chain reaction is considered to be a: -sustaining reaction in which the products cause new reactions fusion reaction because new material is combined many times }common phenomenon for all unstable uranium atoms proton creation

Which atoms are most likely to form covalent bonds?

Which phrase is the best description of weathering? A-Compacting Rocks B-Cementing Rocks Together C-Crystallizing to form minerals D-Breaking Rocks into fragments by physical or chemical means