Kidmarkham4475
17.11.2020 •
Chemistry
Which option is an element air, sodium chloride, oxygen,water
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Ответ:
oxygen
Explanation:
air is a way of saying oxygen but it isn't direct, sodium chloride is a combination of two different elements but isn't one element, and water is H2O but that isn't an element on the periodic table. The only real element that is on the periodic table is oxygen.
Ответ:
C. $220
Step-by-step explanation:
200 x .05 = $10
$10 x 2 years = $20
$200 + $20 = $220