HESI A2 test Chemistry- Scientific Notation

If a temperature were to decrease by 100 Kelvins, how much would this temperature decrease on the Celsius scale?

100 degrees Celsius

Normal body temperature is considered to be 98.6^oF. What is the normal body temperature in degrees Celsius?

37° C

On which of the following temperature scales can a negative number not exist?

Kelvin

The mass of a grain of sand is 1.672 × 10^-4 kg. Express this number in standard notation.

0.0001672 kg

What are the three main components of a number that are expressed in scientific notation?

Coefficient, Base, Exponent

What is 6,987,000 in scientific notation?

6.987 x 10⁶

What is 6.5 × 10^-5 equal to in standard form?

0.000065

What is 85^oC in degrees Fahrenheit.

185 °F

Which metric prefix is represented numerically by 10^-3?

milli-

Which of the following is the metric system’s basic measure of distance?

meter

Which of the following is the SI unit of length?

Meter

Which of the following is the SI unit used to measure the amount of a substance?

Mole

Which of the following Kelvin temperatures represents the freezing point of water?

273.15 K

Which of the following numbers does the prefix “deka” represent?

10

Which of the following occurs at 100°C?

Pure water boils

Which of the following options correctly shows 4,752,100 in scientific notation?

4.7521 x 10⁶

Which option correctly converts 4.51 × 10^-5 to standard notation?

0.0000451

Which option correctly translates 5.67 × 10⁸ into standard form?

567,000,000

Which of the following options represents the SI base unit of mass?

Kilogram

Which option is the correct scientific notation of 734,000,000?

7.34 x 10⁸