To determine which has the greatest mass, we need to find out the molecular mass of each element:
Uranium (U) = 238 g/mol
Oxygen (O) = 16 g/mol
Sodium (Na) = 23 g/mol
Chlorine (Cl) = 35.45 g/mol
Therefore, if we have one mole of each element, the element with the greatest mass is 238 grams or <u>Uranium.</u><span />
In my opinion the answer is D
Answer:
Some serious diseases like anthrax is also caused in animals by the microbes. Microbes also cause diseases of plants like blights in potatoes, sugarcanes, oranges etc. They also reduce the yield. Microbes grow on food products and render them unfit for consumption.
Explanation:
Answer: The number of moles of
produced are, 0.287 moles.
Explanation : Given,
Mass of
= 14.9 g
Molar mass of
= 32 g/mol
First we have to calculate the moles of 


Now we have to calculate the moles of 
The balanced chemical equation is:

From the reaction, we conclude that
As, 13 mole of
react to give 8 moles of 
So, 0.466 mole of
react to give
mole of 
Therefore, the number of moles of
produced are, 0.287 moles.
Answer:
Reasonable Second step- 
Explanation:
The given single step chemical reaction is as follows.

Suppose a two-step mechanism is proposed for this reaction,
The reaction occured in two steps they are as follows.

