Answer: NaCl; Sodium Chloride
Explanation:
Answer:
Starting at 1 to 2 months of age, the baby will receive vaccinations
Explanation:
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Oregon trail would be the best answer
17) 8.4 / 20 x 100
18) 20 . 0.5150
19) 6,50% because (as you said) the law of definite proportions states that regardless of the amount, a compound is always composed of the same elements in the same proportion by mass