If a car traveled 400 miles in 20 seconds how fast is it going

What happens when an acid reacts with a metal such as magnesium?

Express the following answers with the correct number of significant figures. 3.582 : 0.0131

Why does the amount of energy received from a small light source decrease as the distance from the light source increase

What is the number of valence electrons in the outermost energy level of an element in goup 15a?

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? Na <K K> Rb C. Rb < Na < K D. Na = K = Rb

Do all liquids freeze at the same rate

Convert 1.67 x10^24 atoms of carbon to moles of carbon

The knowledge of chemistry not important in one of the following? A, in agriculture B, in Geology C, in medicine D, none

Which is the balanced equation for: Al2O3 + Fe - Fe3O4 + AL

Why are lab apparatus made of ceramics