What is the volume of a sample of iron that has a mass of 275.1 g? The density of iron is 7.86 g/cm'. Express the answer with the correct number
of significant figures. *
A. 0.0286 cm
B. 3090 cm
C. 35.0 cm
D. 35 cm

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.

When balancing a chemical equation:

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)