(c) 21.23 ml (d) 21.232 ml
q3. how many significant figures are in the number 0.00620?
(a) 2 (b) 3
(c) 4
(d) 5
q12.

b). 3

Explanation:

every real number is a sig fig (1-9)

Any zeros after real numbers behind the decimal are sig figs (0.340 = 3 sig figs)

Any zeros in between real numbers are sig figs (3402 = 4 sig figs)

If there is a clear decimal, every number in front of it are sig figs (100. = 3 sig figs) - this can also be expressed by a line above the zeros

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

is there any options? maybe im just not seeing them but i need the options to

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