B. Or D. Im confused they both make sence
D. MgO + 2HCI – MgCl2 + H20
<h3>Further explanation</h3>
The chemical equation is said to be balanced if the number of atoms in the reactants is equal to the number of atoms in the product
A. CaO2 + HCl → CaCl2 + H20
atoms O, Cl and H are not the same
B. CO2 + H2O + H2CO2
atoms O are not the same
C. K+ H2O → K20 + H2
atoms K are not the same
D. MgO + 2HCI – MgCl2 + H20
Mg, left = 1, right=1
O, left=1, right=1
H, left=2, right=2
Cl, left=2, right=2
Chemical equation is balanced
Answer:
Here's what I find.
Explanation:
Many scientists contributed to our model of the atom.
Among those who received the Nobel Prize for their work are:
1906 — J.J. Thomson — discovery of the electron
1908 — Ernest Rutherford — nuclear model of the atom
1922 — Niels Bohr — planetary model of the atom
1922 — Albert Einstein — quantum mechanical model of the atom
1935 — James Chadwick — discovery of the neutron
Answer:
A mixture of molecules is a group of molecules in which there are multiple different elements and atoms, that are in either fixed proportions or random. There are heterogeneous and homogenous mixtures.
Explanation:
Oxidation numbers is the right answer
