Answer: 166 g
Explanation: q = mC∆T
q = heat = 6940 J
m = mass = ?
C = specific heat of water = 4.184 J/g/deg
∆T = change in temperature = 40.0 - 30.0 = 10.0ºC
6940 J = (m)(4.184J/g/deg)(10 deg)
m = 165.9 g = 166 g
Answer:
Gold is much heavier than lead. It is very dense. Another rather simple way to think of this is that if the density of water is 1 g/cc then the density of gold is 19.3 times greater than water. Water weighs about 8.3 pounds per gallon.
Explanation:
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The characteristic of atoms is
They are the smallest units of matter
<u><em> Explanation</em></u>
Atoms are the smallest constituent units of matter and they have properties of chemical elements.
Atoms can not be broken by any chemical means.
Atoms of an elements combine together to form compound.
In addition atoms consist nucleus of positively charged protons, neutral neutrons with negatively charged electrons.
