I’m assuming you mean barium nitrite, Ba(NO2)2.
First convert grams of Ba(NO2)2 to moles using the molar mass of Ba(NO2)2. Then use the mole ratio of 4 moles of oxygen per 1 mole of Ba(NO2)2 to convert to moles of oxygen. Then use the molar mass of oxygen to convert to grams of oxygen.
45.7 g Ba(NO2)2 • 1 mol Ba(NO2)2 / 229.35 g Ba(NO2)2 • 4 mol O / 1 mol Ba(NO2)2 • 16.0 g O / 1 mol O = 12.8 g oxygen
Answer: Option (b) is correct.
Explanation:
During extreme dry periods, there will be either very less availability of water or no water at all.
Hence, the tortoises avoid excretion as a watery waste at any time because they are not getting enough water from their surroundings.
Thus, at this period of time the waste eliminates as a white paste.
Therefore, during extreme dry periods tortoises will eliminate waste as a white paste.
Answer:
The collection of fossils and their placement in chronological order is known as the fossil record
I think??
Answer:
air is not a mixture because of scientists freezing it and finding different liquids, it is a mixture because the compounds that make up air e.g. oxygen (o2), Carbon dioxide (co2) and the most important Nitrogen which is an element and makes up 78.09% of air are not chemically bound in the way that compounds are
Explanation:
Answer:
A. The relationship between the Sun,Moon,and Earth
Explanation:
