The answer to this question is option A which is a compound.
It is because Zoe is investigating the composition of substance A, an unknown substance.
Using chemical processes, she analyzes substance A and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1.
Finally, she found that the substance is a compound.
Answer:
i think its false because
Explanation:
compounds are made of two or more atoms of <u>different</u> elements
Product that shows incomplete combustion is CO
Answer :
In general trend,
The size of the element increases as we go down in a same group.
And the electronegativity of the element decreases as we go down in a same group.
For example : The two elements Magnesium and Calcium in a same group number 2.
The size of calcium is greater than the magnesium because as we go down in a group the atomic radius increases and the size also increases. And the electronegativity of calcium is less than the magnesium because as we go down in a group the electronegativity decreases.
Answer:
I'm pretty sure it's 15 electrons. Hope this helps :).
Explanation: