Start learning 50% faster. Sign in now
63 # 9 # 52 # 10 # 4 = 19 63 ÷ 9 + 52 – 10 x 4 = 19 7 + 52 – 10 x 4 = 19 7 + 52 – 40 = 19
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?