nitrogen and oxygen are the most abundant gases in earths atmosphere. a nitrogen molecule is 0.00000000003…

nitrogen and oxygen are the most abundant gases in earths atmosphere. a nitrogen molecule is 0.00000000003 meters larger than an oxygen molecule. which statements describe writing 0.00000000003 in scientific notation? check all that apply. the exponent is negative. the exponent is positive. the coefficient is 0.3. the exponent represents the number of places the decimal moves. the decimal moves to the right.

nitrogen and oxygen are the most abundant gases in earths atmosphere. a nitrogen molecule is 0.00000000003 meters larger than an oxygen molecule. which statements describe writing 0.00000000003 in scientific notation? check all that apply. the exponent is negative. the exponent is positive. the coefficient is 0.3. the exponent represents the number of places the decimal moves. the decimal moves to the right.

Answer

Explanation:

Step1: Recall scientific - notation rules

Scientific notation is of the form $a\times10^{n}$, where $1\leqslant|a|\lt10$ and $n$ is an integer. For a number less than 1 like $0.0000000003$, we move the decimal point to the right until we get a number between 1 and 10. Here, $0.0000000003 = 3\times10^{- 10}$.

Step2: Analyze each statement

  • The number $3\times10^{-10}$ has a negative exponent. So, the statement "The exponent is negative" is correct.
  • Since the exponent is - 10, it is not positive. So, "The exponent is positive" is incorrect.
  • The coefficient $a = 3$, not $0.3$. So, "The coefficient is 0.3" is incorrect.
  • In scientific notation, the exponent $n$ represents the number of places the decimal moves. Here, the decimal moves 10 places to the right to get from $0.0000000003$ to 3, and $n=-10$. So, "The exponent represents the number of places the decimal moves" is correct.
  • To convert $0.0000000003$ to scientific - notation ($3\times10^{-10}$), we move the decimal point to the right. So, "The decimal moves to the right" is correct.

Answer:

The exponent is negative. The exponent represents the number of places the decimal moves. The decimal moves to the right.