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2 years ago

Name a metal and non metal which are liquid at normal pressure and temperature

Chemistry

1 answer:

liraira [26]2 years ago

6 0

Answer:

metal : Mercury(Hg)

non metal : bromine (Br)

Explanation:

mercury is liquid at room temperature and pressure and the same as bromine

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3 years ago

13) Methane (CH4) combines with oxygen according to the balanced equation below. What is the limiting reactant if 25.0 g of CH4

marissa [1.9K]

Answer:

Limiting reactant: Oxygen $O_2$

Explanation:

First write the balanced chemical equation:

$CH_4 + 2 O_2 \rightarrow CO_2 + 2 H_2O$

$mole=\frac{given\, mass}{molecular\, mass}$

given mass of methane =25g

molecular mass of methane=16g/mol

mole=1.5625mol

given mass of oxygen=50

molar mass of oxygen=32g/mol

mole=1.5625mol

from the above balanced equation it is clearly that,

1 mole of methane needs 2 moles of oxygen for complete reaction

Therefore,

1.5625 moles of methane needs 3.125 moles of oxygen for complete reaction but we have only 1.5625 moles of oxygen,

hence,

oxygen will be the limiting reactant and methane will be the excess reactant

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3 years ago

Name a metal and non metal which are liquid at normal pressure and temperature​

Name a metal and non metal which are liquid at normal pressure and temperature