A substance is tested with litmus paper. the blue litmus paper remains blue while the red litmus paper remains red. what can you conclude about the substance?

The study of ancient life and how it interacted with its environments called A geology B archaeology C paleontology D anthropology

How many moles are in 25kg of Fe2O3?

How are radioactive isotopes detected?

Smallest to largest: biome, population, organism, ecosystem, community

Which atom in the ground state has a stable valence electron configuration? (1) Ar (2) Al (3) Si (4) Na

NaOH and bleach have several characteristics in common. They include all BUT one of the characteristics listed.

What is the general form for the simplest type of acid-base reaction?

Which element has a larger atomic radius than sulfur? chlorine cadmium fluorine oxygen

Which of the following procedures is used when refining petroleum? Increase the temperature of the oil. Decrease the temperature of the oil. Increase the pressure of the oil. Decrease the pressure of the oil.

What is the mass of calcium in 2.3•10^23 molecules of calcium phosphate