Which metalloid is in the fourth period and the same group as carbon?

What differentiates atoms from elements?

What is 16.7 cubic feet expressed in cubic centimeters

Evan finds a rock while hiking. It has a fossil in it. The rock is most likely a (n): igneous rock sedimentary rock metamorphic rock

Describe two chemical reactions that require energy in order to occur

Which terms identify types of chemical reactions

What kind or plate tectonic boundary is the san anfreas fault?

What is it called when the state of matter that keeps its shape and volume when it's placed in a different container

A 0.1 m solution of which salt is the most basic? (a) nano3 (b) naclo4 (c) nahso4 (d) nahco

How to conduct electricity with light bulb and battery

A cup can hold 50 ml of water and has a mass of 25g. If each penny weighs 2g, how many pennies can it hold before it sinks in fresh water? Explain how you got your answer.