Answer: Pure substances are substances that are made up of only one kind of particle and have a fixed or constant structure.
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Answer:
B) the kinetic energy of the particles in the spoon will decrease as the thermal energy moves from the soup to spoon.
The correct formula for carbon disulfide - CS2
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Filtration because of the chemicals needed to spread them
Answer:
2 mole H2O = 18.02 g will not work.
Explanation:
Let us check the options one by one:
1 mole of O2 weighs 32 g.
⇒Hence option A is correct.
1 mole of H2O weighs 18 g.
⇒Hence option B is wrong.
From the balanced equation we can say :
1 mole of CH4 reacts with 2 moles of O2 to give 1 mole of CO2 and 2 moles of H2O.
⇒Hence option C and D are correct.
