EZ POINTS HELP PLEASE Identify the CORRECT statement below:
A. The mass number of an atom is the number of electrons plus protons in the atom.
B. Atomic number is the number of protons in the nucleus of an atom.
C The neutron has a negative charge.
D Two different elements can have the same number of protons.​

I`m pretty sure that B is right

Explanation:

I believe its B or D

B

The atomic number is equal to the number of protons in an atom’s nucleus. The atomic mass is the sum of the mass of protons and neutrons. Protons and neutrons have approximately the same mass, about 1.67 × 10 -24 grams, which scientists define as one atomic mass unit (AMU).

D

Atoms from two different elements may have the same number of neutrons, but never the same number of protons. The number of protons is unique to the element and represents the atomic number. For example, you can look at radioactive decay.

Hope this helps you if it does pls mark me brainiest  

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol