Perform the following calculation, reporting your answer to the correct number of significant figures and with the correct unit. 25.4 ml - 21.4 ml =
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Perform the following calculation, reporting your answer to the correct number of significant figures and with the correct unit.
25.4 ml - 21.4 ml =
Rules for significant figure
- All non zero integer are significant
- Exact number have unlimited number of significant figure
- Zero between the non-zero number are significant
- Zero before non-zero integer are non significant
- Zero after non-zero integer which are not followed by decimal are not significant
- Zero after non zero integer which are followed by decimal point are significant
- If zero come after non-zero integer and come after decimal point they are significant
- While doing addition and subtraction , the answer should have same number of decimal point as that of limiting term. Limiting term is the number which have least decimal place
- While doing multiplication and division the answer should have number of significant figure as that of limiting term. Limiting term is number with least number of significant figure
- While converting units answer should have same number of significant figure as the number started with.
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