Which of the following is a chemical change?

A - formation of a solid from two liquids

B - phase change

C - change in surface area

D - volume change

An orbital of an atom is defined as the most probable location of (1) an electron (2) a neutron (3) a positron (4) a proton

Is manganese an element compound or mixture answers?

Consider the group 1A elements sodium (period 3), potassium (period 4), and rubidium (period 5). What would you predict about the ionization energies of these elements?

What is ph? how basic a solution is how acidic a solution is the concentration of potassium ions in a solution the concentration of hydrogen ions in a solution

What group 14 element is a metalloid

A 25 N and 5 N force pull to the right. Friction is 10 N. If the object is 5 kg, find the net force and acceleration.

What properties of matter are intensive independent of their size

What is the density of an object having a mass of 8.0g and a volume of 25cm3

What is a Cilla? (In drawing)

Which term names the group of organisms able to interbreed and produce fertile offspring?