Donnez la formule chimique des quatre molécules suivantes.
a) Dioxygène:
c) Eau:
b) Di...
Chemistry, 12.09.2021 05:30, laurenlay156
Donnez la formule chimique des quatre molécules suivantes.
a) Dioxygène:
c) Eau:
b) Dioxyde de carbone:
d) Sel de table:
.
Answers: 1
Chemistry, 22.06.2019 04:30, EinsteinBro
Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
Answers: 1
Chemistry, 22.06.2019 09:00, dante766
Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?
Answers: 1
Chemistry, 22.06.2019 13:50, awesomegamergurl13
What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.
Answers: 2
Mathematics, 19.11.2020 17:50
English, 19.11.2020 17:50
Biology, 19.11.2020 17:50