Chemistry, 28.01.2021 18:40 littlemrslazy
Which pair of compounds has the same empirical formula? (4 points)
Group of answer choices
C2H6 and CH
CH3 and C2H6
C3H8 and C3H
C2H2 and C2H
Answers: 3
Chemistry, 23.06.2019 01:30
Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.
Answers: 1
Chemistry, 23.06.2019 01:30
Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity
Answers: 2
Chemistry, 23.06.2019 02:00
Calculate the molarity of each aqueous solution: a. 78.0 ml of 0.240 m naoh diluted to 0.250 l with water b. 38.5 ml of 1.2 m hno3 diluted to 0.130 l with water
Answers: 1
Chemistry, 23.06.2019 06:40
The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?
Answers: 1
Which pair of compounds has the same empirical formula? (4 points)
Group of answer choices
Mathematics, 11.02.2021 18:30
Mathematics, 11.02.2021 18:30
Mathematics, 11.02.2021 18:30
Chemistry, 11.02.2021 18:30
Social Studies, 11.02.2021 18:30
Mathematics, 11.02.2021 18:30
Mathematics, 11.02.2021 18:30
Physics, 11.02.2021 18:30
Health, 11.02.2021 18:30
Social Studies, 11.02.2021 18:30
History, 11.02.2021 18:30