Answer: Three. Explanation: When counting the number of significant figures in a decimal number, you start counting from the right of the decimal point. 0 .00203 Counting from left to right from the decimal point , there are 5 digits. However, the zeroes before any natural number is not counted as a significant figure. 0.00 203 Thus, there are 3 significant figures ie. 203. Note: any other numbers added to the right of 0.00203 is also counted as a significant number. eg. 0.002031 has 4 significant figures. eg. 0.002030 has 4 significant figures.
The pressure of the atmosphere Boiling point is defined as when the vapor pressure of the liquid equals to the atmospheric pressure then it starts to boil that temperature is called boiling point.
