Answer:
Na2SO4 means: two moles sodium (45.98 g), one mole sulfur (32.06 g), and four moles oxygen (64.00 g) combine to form one mole of sodium sulfate (142.04 g).
Explanation:
The Roman numerals are used to show the oxidation number of some transition metals because some elements have more than one possible oxidation state. So basically it's there to indicate the charge of the element.
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When an alkyne such as 2,3-dichloropentane is treated with excess sodium amide, a two-step elimination reaction will happen. The reaction would then yield the final product in the form of 2-pentyne. Its structure is shown in the attached image.
I believe number 26 if in correct is product.
Answer:
No it is not because it is not in group 3 or 12.
Explanation: