The ratio of carbon atoms to hydrogen atoms in methane gas is 1:4.
Let's assume the number of carbon atoms to be x and the number of hydrogen atoms to be 4x.
According to the given information, the total number of atoms in the sample is 90.
Therefore, x + 4x = 90.
Simplifying the equation, 5x = 90.
Dividing both sides of the equation by 5, x = 18.
So, the number in the first rectangle (carbon atoms) should be 18, and the number in the second rectangle (hydrogen atoms) should be 4 times 18, which is 72.
methane gas contains carbon atoms and hydrogen atoms in the ratio of 1:4. a sample of methane gas contains 90 atoms. what value should be inserted into each rectangle?
the number [ ] should be inserted into each rectangle.
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