Answer:
element argon, protons 18 , electrons 18 , outer most energy level 8
A) –1 B) +2 C) +6 D) +4 3.
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<u>Answer:</u> The number of formula units present in 2 moles of
are 
<u>Explanation:</u>
Formula units are defined as the number of molecules or atoms present in 1 mole of a compound or element respectively.
According to mole concept:
1 mole of a compound contains
number of formula units
Here, 2 represents the number of moles of 
We are given:
Moles of
(glucose) = 2 moles
Number of formula units of 
Hence, the number of formula units present in 2 moles of
are 
Answer:
Some common compounds in our daily lives:
Water, H2O. We need this for survival, because it serves a lot of functions in our body, such as being a medium for chemical reactions in our cells.
Carbon Dioxide, CO2. It is one of the components of air, our body also produces CO2 during respiration.
Sodium chloride, NaCl. Table salt is mostly made of sodium chloride. It is also found dissolved in sea water.
Methane, C2H4. This is a common fuel for generating electricity. It can also be found (small amounts) in air.
Nitrogen Dioxide, NO2. It can also be found in air, and it is one of the common air pollutants brought by burning of fossil fuels.
False should be your answer