Chemistry, 23.07.2019 23:30, cstevenson
Ms. block's students are studying chemical reactions. a classic reaction occurs when a metal is added to hydrochloric acid. miguel and kai added 30g of hydrochloric acid (hcl) to 30g of magnesium (mg) in a large test tube; bubbles appeared, the test tube felt warm, and they could no longer see the magnesium. they found that the mass of the products of the reaction was 52g. since the law of conservation of matter stated that matter cannot be created or destroyed, they was puzzled about the difference in mass. what is the best explanation for the missing 8g?
Answers: 2
Chemistry, 21.06.2019 13:50, dootdootkazoot
Aluminum–lithium (al-li) alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. a commercial aircraft skin material having a density of 2.47 g/cm3 is desired. compute the concentration of li (in wt%) that is required.
Answers: 3
Chemistry, 22.06.2019 10:30, Clivensp5
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Chemistry, 22.06.2019 15:30, elizabethprasad2
The reactions of photosynthesis occur in the of plant cell? a. mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll
Answers: 1
Ms. block's students are studying chemical reactions. a classic reaction occurs when a metal is adde...
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