HELP ME PLEASE I BEG
Can someone explain what the heII lattiCE STRUCTURES ARE. WHY IS IT THAT NaCl HAS 27 ATOMS IN ITS STRUCTURE WHEN THE BALANCED MOLECULE HAS 2 ATOMS?? WHAT HAPPENS TO THE LAST ONE??? WHAT IS A CELL UNIT?? I THOUGHT CELLS WERE A BIO THING? PLEASE IM DESPERATE THIS IS ALL THE POINTS I HAD
please to all the kind souls out there, i just wanna pass chem ;-;
Answers: 2
Chemistry, 22.06.2019 06:00
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 17:10
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Chemistry, 22.06.2019 18:30
The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false
Answers: 1
Chemistry, 23.06.2019 03:30
The semi-conductors on the periodic table are classified as
Answers: 1
HELP ME PLEASE I BEG
Can someone explain what the heII lattiCE STRUCTURES ARE. WHY IS IT THAT NaCl...
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