In an experiment testing, “Does caffeine effect the way common house spiders build webs?” what variable are you testing? A. the amount of caffeine the house spiders receive
B. the amount of food you feed the house spiders
C. the body mass of each house spider
D. the number of house spiders you give caffeine to

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?

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration