Option A.) NH4 is not an oxyanion
Oxyanion = anion containing oxygen.
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molecules of methane are present.
<h3><u>Explanation</u>:</h3>
The molar concept is very necessary for solving this question. The molecular weight of methane is to be calculated.
The molecular weight of methane = = 16.
So in 16 grams of methane, 1 mole of methane is present.
So, in 48.2 grams of methane, number of moles of methane present = 3.
In 1 mole of any substance, number of molecules of that substance present =
So,number of molecules present .
Answer:
yes
Explanation:
The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will also sink if it is more dense than the liquid it is placed in
Answer: m = 17.5 g Cl
Explanation: To find the mass of Cl we will need to convert the moles of Cl to mass using the relationship of 1 mole = molar mass of Cl.
0.500 mole Cl x 35 g Cl / 1 mole Cl
= 17. 5 g Cl