Donald's car battery is dead and he needs a pair of jumper cables. His friend Juan has some in his car and he brings them to Don
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Answer: The possible molecular formula will be
Explanation:
Mass of C= 27.3 g
Mass of O = 72.7 g
Step 1 : convert given masses into moles.
Moles of C =
Moles of O =
Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.
For C =
For O =
The ratio of C : O = 1: 2
Hence the empirical formula is
The possible molecular formula will be=
Answer:
1. 2Ca + N → 2CaN
2. 4Li + O → 2Li
O
3. 2KCl + BaF → 2KF + BaCl
4. CH + 2O
→ CO
+ 2H
O
Be sure to balance the number of atoms on both sides of each equation only by adding coefficients to the compounds!!!! Those without a coefficient are meant to have a coefficient of 1.