Chemistry, 19.08.2021 20:50, ericlawton
28:20
What is Avogadro’s number?
the number of atoms in exactly 14.00 g of carbon-12
the number of atoms in a kilogram of any substance
the number of atoms, molecules, ions, formula units, or other particles in a mole of a substance
the number of atoms, molecules, ions, formula units, or other particles in a gram of a substance
Answers: 2
Chemistry, 21.06.2019 20:30, pennygillbert
In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust
Answers: 1
Chemistry, 21.06.2019 20:50, deanlmartin
Choose all that apply. when creating a graph, you should: determine the x- and y- variables label the scale on the x- and y- axes plot the data points draw a line of best fit to represent the data trend
Answers: 1
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 01:30, arodavoarodavo
The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?
Answers: 3
28:20
What is Avogadro’s number?
the number of atoms in exactly 14.00 g of carbon-12
t...
the number of atoms in exactly 14.00 g of carbon-12
t...
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