During science class Billy used litmus paper to determine the pH of an unknown liquid. The blue litmus paper turned red but there was no change in the color of the red litmus paper. The liquid Billy tested is probably

Which change increases the electric force between objects? A) Two neutral objects are moved closer together. B) Electrons are added to two negatively charged objects. C) Two oppositely charged objects are moved farther apart.

True or False? When a force is applied through a distance, work is done.

Write a paragraph showing the relationship between chemistry and physical based on what you've learned from the periodic table

Gravity has traditionally been defined as a force of attraction between things that have

Name six processes that are often involved in scientific inquiry.

a group of elements that stretch bend and conduct heat and electricity

A rectangular block has dimensions 2.9 cm x 3.5 cm x 10.0 cm. the mass of the block is 615.0 g. what is the volume and density of the block? (answer it with correct numbers of significant figures)

Which of the following are products of cellular respiration? Sunlight Oxygen ATP Water Carbon Dioxide

Do magnetic field lines ever start or end anywhere?

What effect do oceans have on the temperature of coastal areas? A. Ocean breezes warm the coastal land constantly. B. Ocean currents always cool a coastline. C. Ocean winds prevent extremes of temperature on coastal lands. D.