Chemistry, 18.12.2019 08:31 starbae1084
Which statement best describes balancing equations and the law of conservation of mass?
there are more atoms in the reactants than in the products, and the total mass is the same in the reactants and in the
products
the number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and
in the products,
there are fewer atoms in the reactants than in the products, and the total mass is less in the reactants than in the
products
there are more atoms in the reactants than in the products, and the total mass is higher in the reactants than in the
products
save and exit
next
mark this and return
submit
Answers: 1
Chemistry, 22.06.2019 08:00
Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback
Answers: 3
Chemistry, 22.06.2019 08:40
Which statement can best be concluded from the ideal gas law?
Answers: 2
Chemistry, 22.06.2019 09:00
Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
Answers: 2
Which statement best describes balancing equations and the law of conservation of mass?
there...
there...
Mathematics, 25.08.2019 13:30
Mathematics, 25.08.2019 13:30
Mathematics, 25.08.2019 13:30
English, 25.08.2019 13:30
English, 25.08.2019 13:30
Chemistry, 25.08.2019 13:30
Physics, 25.08.2019 13:30
Mathematics, 25.08.2019 13:30
Mathematics, 25.08.2019 13:30
History, 25.08.2019 13:30
Mathematics, 25.08.2019 13:30