Chemistry, 13.06.2020 21:57, daniellaZemira
Based on what you’ve determined regarding one mole of sand and one mole of water, which statements must be correct?
Select all the correct answers.
The mole is appropriate only for counting things that are very small.
The number of particles in a mole depends on the size of the particles.
One mole is a very large number of something.
A molecule of water is much smaller than a grain of sand.
There are more grains of sand on Earth than there are water molecules.
Answers: 3
Chemistry, 22.06.2019 02:30, caeyanij
When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.
Answers: 3
Chemistry, 22.06.2019 20:00, 20calzoy
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
Chemistry, 23.06.2019 00:30, natishtaylor1p8dirz
What is the chemical formula of magnesium bromide? a. mgbr2 b. mgbr c. mg2br2 d. mg2br
Answers: 3
Based on what you’ve determined regarding one mole of sand and one mole of water, which statements m...
Mathematics, 02.06.2021 01:20
English, 02.06.2021 01:20
Mathematics, 02.06.2021 01:20
Physics, 02.06.2021 01:20