Answer : C
Reason : The product is MgO which is Magnesium Oxide + CO2 which is carbon dioxide because of the 2
The metal roof is most likely made of copper.
Copper turns green over an extended period of time when exposed to water. For example, The Statue of Liberty is made of copper and was once a bronze color. Now, it is green, similar to the roof
The number of moles of NaCl(s) needed to make 3.0 L of a 2.0 M NaCl solution (soln) is:
3.0 L NaCl soln* (2.0 mol NaCl/ 1L NaCl soln)= 6.0 mol NaCl.
Therefore, (3) 6.0 mol is the correct answer.
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Answer:
[1] P4 + [3] O2=[2] P2O3
Explanation:
you can first solve for amount of O2 in the equation because reactant had O2 and product had O3, so the amount of O2 should be 3 and amount of O3 should be 2, which gets u to 6 moles of oxygen for both reactant and product. then you can balance the P4, and 1 mols of P4 = 2 moles of P2, which matches with the amount of mols for O3 as well. therefore you can get P4 + 3O2 = 2P2O3
Answer:
CO =Coordinate Covalent Bond ,H2O = Water , NE= Nickel or Neon ,KCL=Potassium Chloride and O2 = Water
Explanation:
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