Answer:
Sir James Chadwick discovered proton
Explanation:
Sir James Chadwick, was a British physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941, he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atomic bomb research efforts.
Answer:
Organic Molecule.
Explanation:
Any molecule with C atoms and H atoms are organic molecules<em> </em>in chemistry.
Examples could be C₄H₅, C₉H₁₈O₆, C₅H₁₂N.
The equivalence factor that should be used is 1/6.022x10^23. This is called the Avogadro's number. It represents the number of
particles in one mole of any substance. This has the value of 6.022 x 10^23 particles /
mole. <span>This number can be used to
convert the number of atoms or molecules into number of moles. </span>
Answer:
the carbon gets in the plants by photo synthesis. then the animals eat the plant, which contains carbon.
Explanation:
hope this helps
To make it easier, assume that we have a total of 100 g of a compound. Hence, we have 58.80g of xenon, 7.166g of oxygen, and 34.04g of fluorine.
Know we will convert each of these masses to moles by using the atomic masses:
58.8/131.3 = 0.45 mole of Xe
7.166/16 = 0.45 mole of O
34.04/19 = 1.79 mole of F
Now, we will divide all the mole numbers by the smallest among them and get the number of atoms in the compound:
Xe = 0.45/0.45 = 1
O = 045/0.45 = 1
F = 1.79/0.45 = 3.98 = 4
So, the empirical formula of the compound XeOF₄