<h3>
Answer: CO2</h3>
Explanation:
Well C2H6 there are 2 carbon and 6 hydrogen atoms
and having no number on the right of the letter means there is only one atom
Answer:
give the ion X
<h2>X2+</h2>
Explanation:
it is positively charged because the protons are more than electrons
Answer:
Into seven sections based on frequency
Explanation:
There are 7 em spectrums from radio waves, to infrared waves, to gamma rays listest in order from lowest to highest frequency.
Answer:
365.4 g/mol is the molar mass of this gas.
Explanation:
Using ideal gas equation:
PV = nRT
where,
P = Pressure of gas = 0.98 atm
V = Volume of gas = 1.5 L
n = number of moles of gas = ?
R = Gas constant = 0.0821 L.atm/mol.K
T = Temperature of gas = 287 K
Putting values in above equation, we get:

Moles of gas = n = 0.06239 mol
Mass of gas = m = 22.8 g
Molar mass of gas = M


365.4 g/mol is the molar mass of this gas.
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<span>Calories heat added = Mass of glass times temp. increase times specific heat of glass
</span>
<span>calories (small calories) = l.0 g x 20 degrees x .16 calories/gm/degree C = 3.2 calories</span>