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(5 + 13 of 7 - 5.25 of 8 + 63) ÷ 18
= (5 + 91 - 5.25 of 8 + 216) ÷ 18
= (96 - 42 + 216) ÷ 18
= 270 ÷ 18
= 15
In a compound, the elements are always present in definite proportions by:
In the periodic table of elements, what happens to the atomic radius as you move from left to right across a period?
The fossil of Archaeopteryx represents the evidence of origin of
On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
What is the chemical name for baking soda?
Which of the following is a noble gas ?
What is the chemical name of the Laughing Gas?
_________is a formula for rust.
Which of the following is a water soluble vitamin?
What is the chemical name of baking soda?
