Judging and evaluating advertisements requires critical thinking because
2 answers:
Answer:
Because there are a lot of imprecise facts and fallacies in advertisements.
Explanation:
Because the goal of an ad is not to instruct; the goal is to sell some solution to a problem you didn't know you had. Thus, the advertisements always appeal to emotional reactions.
In addition to this, there are many imprecisions, some misinformation or incomplete data about what's being taken as a scientific fact.
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Given :
A 10.99 g sample of NaBr contains 22.34% Na by mass.
To Find :
How many grams of sodium does a 9.77g sample of sodium bromine contain.
Solution :
By law of constant composition , in any given chemical compound, the elements always combine in the same proportion with each other.
Therefore , percentage of Na by mass in NaBr will be same for every amount .
Percentage of Na in 9.77 g NaBr is 22.34 % too .
Gram of Na = .
Hence , this is the required solution .