Chemistry, 30.12.2019 16:31, issaaamiaaa15
When the compound, na2s, is mixed with water, the na2s is:
soluble because all na+1 compounds are soluble in water
insoluble because most na+1 compounds are insoluble in water
soluble because all sā2 compounds are soluble in water
insoluble because there are no water soluble sā2 compounds
Answers: 2
Chemistry, 22.06.2019 01:00, mutoni55
Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.
Answers: 2
Chemistry, 22.06.2019 03:00, ian2006huang
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
Chemistry, 22.06.2019 18:30, chinadoll24
Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2ā¢2h2o sncl2ā¢4h2o sncl2ā¢6h2o
Answers: 2
Chemistry, 23.06.2019 01:00, skatelife8974
What is the chemical name of the compound ti2o3?
Answers: 2
When the compound, na2s, is mixed with water, the na2s is:
soluble because all na+1 com...
soluble because all na+1 com...
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