Answer:
c. The atoms of one element can be identical to the atoms of another element.
Explanation:
<em>Which of the following is not a statement of Dalton's atomic theory of matter?</em>
<em>a. Elements are made of atoms.</em> TRUE. An atom is the smallest particle of a chemical element that can exist.
<em>b. Atoms of a given element are identical.</em> TRUE. The only slight difference is in the mass of isotopes.
<em>c. The atoms of one element can be identical to the atoms of another element.</em> FALSE. The atoms of different elements are different from one to another.
<em>d. A given compound always has the same number and kinds of atoms. </em>TRUE. This is known as Dalton's law of constant composition.
Answer:
<h3>The answer is option A.</h3>
Hope this helps you
Answer:
b) +2 and +3.
Explanation:
Hello,
In this case, given the molecular formulas:
![XO](https://tex.z-dn.net/?f=XO)
And:
![X_2O_3](https://tex.z-dn.net/?f=X_2O_3)
We can relate the subscripts with the oxidation states by knowing that they are crossed when the compound is formed, for that reason, we notice that oxygen oxidation state should be -2 for both cases and the oxidation state of X in the first formula must be +2 since both X and O has one as their subscript as they were simplified:
![X^{+2}O^{-2}](https://tex.z-dn.net/?f=X%5E%7B%2B2%7DO%5E%7B-2%7D)
Moreover, for the second case the oxidation state of X should be +3 in order to obtain 3 as the subscript of oxygen:
![X_2^{+3}O_3^{-2}](https://tex.z-dn.net/?f=X_2%5E%7B%2B3%7DO_3%5E%7B-2%7D)
Thus, answer is b)+2 and +3
Best regards.
Answer:
calcium ca
Explanation:
We can see here that the only element that is on the same group (column) as Ba (Barium) is Calcium (Ca).
Im not sure but it could be 4 (H)