Which will decrease the rate of a reaction? changing the temperature from 90ºc to 40ºc adjusting the concentration from 30 ng to 60 ng placing the substance in a smaller container grinding the substance into a powder

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

How many grams of mgbr2 are needed to produce 75g or metal?

Find the number of moles of argon in 364g of argon.