3 years ago

Which of the following chemical formulas represents a molecule? H2 CO2 SiO2 NH3

Chemistry

2 answers:

astraxan [27]3 years ago

5 0

Answer:

Explanation:

H (or hydrogen), being a halogen, as an atom, has 7 valence electrons. This means that it naturally bonds with another atom of the same isotope in order to reach the desired total of valence electrons: 8.

So... H+H = H2. EZ

love history [14]3 years ago

5 0

Answer:

its all of them

Explanation:

i just did it lol but just incase, "Molecules are made of two or more atoms that are chemically bonded together. The atoms can be of the same element or of different elements. Therefore, H2, CO2, SiO2, and NH3 are all molecules."

You might be interested in

chlorine has two naturally occurring isotopes, Cl-35 and Cl-37. The atomic mass of chlorine is 35.45. Which of these two isotope

Sliva [168]

Cl-35, as the atomic mass of Chlorine (35.45) is closer to the number 35 than to the number 37. A higher abundance of CL-35 isotope would have caused the atomic number (which is an average of the values of all isotopes of a substances taking relative abundance into consideration) to decrease from 36, which would appear to be the average.

5 0

3 years ago

What is the total number of valence electrons in the lewis structure of xeo4?

malfutka [58]

Here is a picture of which shows you how many valence electrons are in the Lewis structure of xeo4