Answer:
2
Explanation:
Since you are balancing the equation you need to have equal amounts of each element on each side. Right now there is 2n and 2o on one side, and on the other 2n and 1o. Although the number of n's on each side is equal the number of o's are not. First I balance the number of oxygen's on each below, but doing that made the number of nitrogen's unbalanced. So then I balanced the nitrogens in step 2.
__N2+ __O2 = __N2O
1. __N2+ __O2 = 2 N20
2. 2 N2 + 1 O2 = 2 N2O
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3.6 x 10²³
Explanation:
Given parameters:
Number of cell per body = 60 trillion body cells
Population of the earth = 6 billion
Unknown:
Total number of living human body cells = ?
Solution:
To solve this problem, simply find the product:
Total number of living human body cells = number of cell per body x population of the earth
1 trillion = 1 x 10¹²
60 trillion = 6 x 10¹³
1 billion = 1 x 10⁹
6 billion = 6 x 10⁹
Total number of living human body cells = 6 x 10¹³ x 6 x 10⁹
= 6 x 6 x 10⁽¹³⁺⁹⁾
= 36 x 10²² or 3.6 x 10²³
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