Answer: D is right
Explanation: One mole contains 6.0225 ·10^23 molecules
Despite of the substance
B----------- oxide is the correct answer
When writing an ionic compound formula, a "molecular" form is used. The formula is made with allowance for ion charges.
For example,
Ca²⁺ and NO₃⁻ ⇒ Ca(NO₃)₂
Al³⁺ and SO₄²⁻ ⇒ Al₂(SO₄)₃
Microscopes?
Scanners?
Transmitters?
Cameras?
Hand lens?
There are a lot
Answer:
12
Explanation:
There are 4 sulfur atoms in SO4
4×3=12
This means that it turns into 3×(SO4)
=3SO4