Two students are doing an experiment. they mix 40 grams of baking soda with 23 grams of vinegar inside a closed container and watch it react. how many grams of product should they expect to have when the reaction stops? plzz answer

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks. energy was destroyed inside the blocks. energy was absorbed into the blocks from outside the system. energy was transferred from the warmer block to the cooler block.

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+