What’s the molar mass of magnesium oxalate

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Classify this reaction: 2al+n2-> aln.