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Some Basic Concepts Of Chemistry

Question

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How many significant figures are present in the following?
500.0

Solution

500·0 has four significant figures because zero to the right of the decimal point is significant.

Some More Questions From Some Basic Concepts of Chemistry Chapter

What does SI units stand for?

What is the relation between temperature in Kelvin (K) and temperature on centigrade scale?

The popular unit of pressure is atmosphere, how is it related to pascal?

What are SI units of the following:

(i) Density
(ii) Molarity
(iii) Energy
(iv) Temperature ?

Out of 5.00 g and 5.0 g which one is more accurate and why?

What is iodised table salt?

Under what conditions air is considered as a heterogenous mixture?

What is gun powder?

Name two elements which are liquids.

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