What can you extract from a refinery

What is the significance of a chemical formula

suppose you wanted to compare two diffrent stain removers to learn which one was better at removing food stains from clothing. In your test, which variable would you need to control?

Which explains how the moon causes low tides on the earth? a. The moon exerts pull on the earth. The pull stretches the earth's watery envelope and creates tidal bulges. Where the water is thinnest is low tide. b.

An atom with an atomic number of 11 will have how many electrons in its outermost orbit

Which statement describes an ionic bond? A. Electrons transition from an inner shell to a valence shell. B. Electrons are mobile within a metal. C. Electrons are transferred from one atom to another. D. Electrons are shared between atoms.

In an experiment, a student estimates the acceleration due to gravity is 9.31 m/s2. The actual value is 9.8 m/s2. What is the student's percent error

Phosphoric acid can be used to clean scale (calcium carbonate) from water fixtures like taps by reacting with it to form products that dissolve easily. warming the phosphoric acid solution would - a. remove less scale. b. remove more scale. c.

What is the formula for tin (ll) chromate

Temperature is measured with a

Explain why an aqueous solution of Na2SO4 is neutral while an aqueous solution of Na2CO3 is basic in nature?