How Much Do Bats Weight?

If you're talking about the animals then:

Bats weigh from as little as 0.07 ounces up to 3.3 pounds. (2 g to 1.5kg) There are nearly 1,000 different bat species of varying sizes.  The smallest bat species, the bumblebee bat, has an average wingspan of only 6 inches long and weighs less than a penny at 0.07 ounces.  The largest bat, the flying fox, can have a wingspan as long as 6 or more feet and weigh more than 3 pounds.

If you're talking about the baseball bats then:

By regulation, baseball bats may weigh no more than 2.75 inches (7.0 cm) in diameter at the thickest part and no more than 42 inches (1.067 m) in length. Although historically bats approaching 3 pounds (1.4 kg) were swung, today bats of 33 ounces (0.94 kg) are common, topping out at 34 ounces (0.96 kg) to 36 ounces (1.0 kg).

Common bats weigh 32 or 33g

Explanation:

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals

answer; to save lives and protect property;