4) What is the mass of 5.20 moles of sodium bicarbonate, NaHCO3 LHint: To solve this problem, you will also need to calculate the molar mass of sodium bicarbonate.
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Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.

Write the overall equation for the reaction occurring in lithium battery?

Awhite powder is added to a solution. the images show observations made before the powder is added, just after the powder has been added, and a little while later. (the liquid in the small beaker is phenol red solution.) what evidence shows that a chemical change has taken place?