A rectangular steel block of dimension 100cm * 50m * 20cm has a mass of 450kg. Calculate the density.

The amoeba and paramecium in which ways?

How many sulfur atoms are expected in the reactants of this chemical reaction? ? CaSO3 A. 0 B. 1 C. 2 D. 3

Which volcanoes are located along divergent plate boundary's

Which of the following is not a correct acid-base neutralization reaction? HI + KOH - -> KI + H20 Ca (OH) 2 + HCl - -> CaCl + H2O CH3COOH _ NH4OH - -> NH4CH3COO + H2O HBr _ CsOH - -> CsBr + H2O

Net ionic equations for potassium sulfate plus calcium phosphate yields

Which statements describe advantages of models? Check all that apply. Models make it possible to easily notice patterns. Models can be used to communicate and test design ideas. Models allow scientists to predict relationships.

Are energy levels and orbitals the same thing?

Heating devices can be made by passing an electric current through a conductor of: high resistance low resistance high conductivity low conductivity

What is the element 3O2 name

Why sulphur used for food preservation?