11. Which one of the following contains the same number of atoms as 7 g
of iron?
(a) 4 g of a...
Chemistry, 06.01.2021 14:00, grahuntley31
11. Which one of the following contains the same number of atoms as 7 g
of iron?
(a) 4 g of aluminium (b) 4g of magnesium (C) 4g of sulphur
(d) 3 g of carbon (e) 4 g of calcium
Answers: 1
Chemistry, 22.06.2019 06:00, kylieweeks052704
Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
Answers: 2
Chemistry, 22.06.2019 06:30, cadenhuggins2
Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?
Answers: 1
Chemistry, 22.06.2019 16:00, bbrogle5154
If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
Answers: 1
Chemistry, 22.06.2019 20:50, iluminatioffial9699
One nanometer is equal to how many meters?
Answers: 2
Arts, 28.11.2021 03:00
Chemistry, 28.11.2021 03:00
French, 28.11.2021 03:00
World Languages, 28.11.2021 03:00
Physics, 28.11.2021 03:00
Mathematics, 28.11.2021 03:00