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olasank [31]
4 years ago
8

What are the 3 main classes of elements?

Chemistry
2 answers:
Jet001 [13]4 years ago
8 0
The three main classes of elements are liquid, solid, and gas
8090 [49]4 years ago
6 0
Three main classes of elements are metals, nonmetals or Metalloids
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CHEM HELP!
sweet [91]

So let's convert this amount of mL to grams:

\frac{13.6g}{1mL}*1.2mL=16.32g

Then we need to convert to moles using the molar weight found on the periodic table for mercury (Hg):

\frac{1mole}{200.59g}*16.32g=8.135*10^{-2}mol

Then we need to convert moles to atoms using Avogadro's number:

\frac{6.022*10^{23}atoms}{1mole} *[8.135*10^{-2}mol]=4.90*10^{22}atoms

So now we know that in 1.2 mL of liquid mercury, there are 4.90*10^{22}atoms present.

4 0
4 years ago
How much energy is required to raise the temperature of 0.2 kg of aluminum
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B. 538 j hoped this helps
3 0
3 years ago
Students heat water in a beaker and measure its temperature. The starting temperature of the water was 23.3 °C. The diagram show
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As heat is applied to liquid water, the molecules move faster and the temperature again increases. During the phase change from liquid to gas, the added heat is stored in the molecules as, once again, potential energy, and the temperature remains constant.

Explanation:

5 0
2 years ago
What do members of the same group have in common?
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The elements in each group have<span> the </span>same<span> number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (</span>group<span> one) </span>has<span> one electron in its outer shell.</span>
7 0
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