Which statement best explains how the mass of an atom is organized? a) most of the mass is contained in the nucleus b) the mass is spread evenly throughout the whole atom c) the mass is spread evenly thoughout the electron cloud d) most of the mass is contained in the electron cloud

The correct answer is Option A.

Explanation:

Atomic mass is defined as the sum of number of protons and number of neutrons that are present in an atom. It is denoted by A.

A = Number of protons + Number of neutrons

Protons and neutrons are the sub-atomic particles which are present inside the nucleus of an atom.

Thus, the total mass of an atom will be comprised inside the nucleus

Hence, the correct answer is Option A.

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation:

2b2t

explanation:

2b2t