Answer:
John Dalton
Explanation:
John Dalton (1766-1844) is the scientist credited for proposing the atomic theory. This theory explains several concepts that are relevant in the observable world.
Answer:
Acetamide
Explanation:
The reaction can be expressed as:
CH₃COOH + NH₃ → CH₃CONH₂ + H₂O
It's worth mentioning that this reaction would have a better yield if we use an appropiate catalyst such as DCC, in order to prevent an acid-base reaction and instead have the previous <em>amidation</em> reaction.
The atomic number of an element is characteristic to that element. Atomic number is the number of protons of that element.
Mass number is the sum of protons and neutrons of the element.
since protons and neutrons have a mass of 1 unit each, they together make up the mass of the element.
atomic number - number of protons - 92
mass number - number of neutrons + protons = 234
number of neutrons = mass number - atomic number
neutrons = 234 - 92 = 142
answer is 142
Answer:
when something is boiling. the temperature increases quickly so B and D are eliminated. So its either A or C. My guess is A
