Devanshi Goel chemistry hhw

Formula of Magnesium phosphate

• Mg2PO2

• Mg3PO2

• Mg(PO4)2

• Mg3(PO4)2

• mgPO4

clay can be separated from water by

(small letters)

which of them are variable valency

• sodium

• iron

• copper

• hydrogen

which element symbol is derived from its latin name stibium?

• aluminium

• antimony

• silicon

• sulphur

what is law of conservation of mass

• mass of reactant is equal to mass of product

• elements having two valency are variable valency

• mass can neither be created nor be destroyed

-------- exists in combination with other radicals or elements

(small letters)

another name for basic radicals

• anions

• cations

Is fractional distillation and distillation the same thing

• I don't know

• yes

• maybe

• no

other name for acidic radical

difference between 'ous' and 'ic' of variable valency

• ic is smaller

• ous is smaller

• ous is larger

• ic is larger