Aponte as causas do desmatamento dessa formação vegetal?​

Two things that biomedical has invented or innvated

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass