A student found the mass of an object to be 5.5 g. The actual mass of the object is 5.3g. What is the percent error in the measurement?

What is the theoretical yield of carbon dioxide? a)0.993 gb)2.98 gc)3.65 gd)8.93 g

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.