the density of oxygen is 0.001429 grams per cubic centimeter. How is this number written in scientific notation ?

Question

A 1.429 x 10^3
B 1.429 x 10 ^ 2
C 1.429 x 10 ^ -3
D 1.429 x 10 ^-2

Answer 1

To write 0.001429 grams per cubic centimeter in scientific notation, you need to express it as a product of a number between 1 and 10 multiplied by a power of ten.

Here’s how to convert it:

1. Move the decimal place to the right until you have a number between 1 and 10. In this case, moving the decimal three places to the right gives you 1.429.
2. Since you moved the decimal three places to the right, this is equivalent to multiplying by \(10^{-3}\).

So, 0.001429 can be written in scientific notation as:

\[ 1.429 \times 10^{-3} \]

Therefore, the correct answer is:

C 1.429 x 10^{-3}