A student had a sample of pure water, and added an unknown substance to it. the student noticed that the hydroxide ion concentration in the solution increased as the substance was added. what is true about this newly formed solution?

Which of the following processes are spontaneous? Check all that apply. the extraction of iron metal from iron ore a hot drink cooling to room temperature drawing heat energy from the ocean's surface to power a ship the combustion of natural gas

If you needed to find the force needed to pull a small car up a ramp it would be best to use - A. A spring scale B. An electronic balance C. A triple beam balance D. A formula

Solids have definite shape and volume. A. true B. false

State two of Newton's three laws

I am the first. I am the dawn, the red sky glow of the sunrise. Can you identify me?

The force between a pair of. 005 charges is 750 N. What is the distance between them?

A perpetual motion machine can never be built because it is not possible to eliminate A) Momentum B) Inertia C) Elasticity D) Friction

What makes the lumbar vertebrae different from the cervical vertebrae and the thoracic vertebrae?

Matter has Certain types of what

Identify the type of relationship that exists between density and temperature