Graphite is a material which despite being in the solid phase, is able to reduce friction between two surfaces sliding against each
other without the need for a liquid oil medium. It makes a good lubricant whereas diamond does not. Elaborate on why graphite is
a good lubricant
Graphite consists of layers of carbon that have
Graphite and diamond are allotropes (structures made of
weak attractions between them. With a little
same element) but graphite has carbon atoms spaced
A)
force, the layers can easily slide past one
farther apart and the bonds between carbon atoms are
another.
broken easier.
Graphite consists of carbon atoms bonded
Graphite sheets can slide past one another easily due to
B) weakly to one another in hexagonal planes. D) the hexagonal-formed planes that diamond does not
This weak attraction can be broken easily.
have.
Answers: 2
Chemistry, 22.06.2019 22:40
Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution
Answers: 1
Chemistry, 23.06.2019 00:30
If there are 3.5 moles of koh, how many moles of naoh can be produced? question 1 options: a)3.0 moles naoh b)3.5 moles naoh c)1 moles naoh d)9 moles naoh
Answers: 1
Chemistry, 23.06.2019 05:40
Convert a speed of 201 cm/s to units of inches per minute. also, show the unit analysis by dragging components into the unit‑factor slots.
Answers: 1
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