CHEMISTRY

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These flashcards are all the questions I got wrong in my EoY.
manohar narasimhan
Flashcards by manohar narasimhan, updated more than 1 year ago
manohar narasimhan
Created by manohar narasimhan almost 5 years ago
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Resource summary

Question Answer
Which chemical could react with an acid to form hydrogen? Metal+Acid =Metal salt + Hydrogen
What is the correct formula for nitric acid? HNO3
What does sodium form when it reacts with water? sodium hydroxide
A molecule contains 2 atoms of oxygen, 6 atoms off hydrogen and 3 atoms of carbon. What is the formula of the molecule? C2H5CO2H
Write a balanced equation for when magnesium reacts with oxygen 2Mg+O2->2MgO
Why does the mass of the contents increase in this reaction? It increases because the amount of oxygen increases. The magnesium bonds with the oxygen.
Is Magnesium oxide a compound, metal, mixture or a non-metal? Compound
Why should you not use sodium in a reaction? It is too reactive and is harmful.
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