What makes isotopes of the same element chemically alike? a.  they all have the same atomic massb.  they all have the same number of neutronsc.  they all have the same number of electronsd.  isotopes of the same element can have widely varying chemical activity 

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

How many atoms are there in 5.70 mol of mg

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