*PLEASE HELP FAST* Magnesium sulfate can occur in many different hydrates with the generic formula of MgSO₄ ‧ XH₂O. The hydrate was weighed initially to have a mass of 3.48 g. The hydrate was then heated in a crucible over a flame for five minutes. It was weighed again and had a mass of 2.18 g. How many moles of magnesium participated in the reaction?Immersive Reader
(2 Points)
2.18
0.018
1.30
0.036

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.