Chemistry, 26.02.2021 01:40, monicagalarza
Un bioquímico para preparar una solución disuelve 50 gramos de droga en 150 gramos de agua. Calcular:
a. La masa de solución
b. La concentración de la solución, expresada en % m/m.
ÁTOMO
6. Un átomo de azufre tiene número atómico 16 y número másico 34 ¿Cuántos protones, electrones, neutrones tiene?
Answers: 2
Chemistry, 22.06.2019 10:10, veronica022
Stage in which a typical star has completely stopped fusion
Answers: 1
Chemistry, 22.06.2019 16:10, 00015746
Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)
Answers: 2
Chemistry, 23.06.2019 05:50, starfox5454
Which of the following isotopes has the same number of neutrons as phosphorus-31?
Answers: 1
Chemistry, 23.06.2019 06:00, mirzakasumovic8926
Which factor is likely to impact the possible number of compounds? presence of unlimited number of elements in the periodic table the inability of atoms to align perfectly with other atoms the ability of all elements to react with every other element all elements being equally reactive
Answers: 2
Un bioquímico para preparar una solución disuelve 50 gramos de droga en 150 gramos de agua. Calcular...
Chemistry, 18.09.2019 00:00
Physics, 18.09.2019 00:00
Mathematics, 18.09.2019 00:00
Arts, 18.09.2019 00:00
Chemistry, 18.09.2019 00:00
Biology, 18.09.2019 00:00