Question 4 The box below shows a list of chemical formulas.

I. C6H1206

II. AI(CO2)3

III. Si(HCO3)4

IV. Al(C2H302)3

V. K2SO4

Which of these formulas contain equal numbers of oxygen atoms?

Answer

F Formulas I and III

G Formulas I and IV

H

Formulas I, II, and III

J Formulas I, II, and IV

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

What is the mass of each element in a 324.8 sample of co2