Answer:
4 moles of H3PO4
Explanation:
Molar mass of P4O10 = 284 g/mol
Number of moles of P4O10 reacted = 284g/284 g/mol = 1 mole of P4O10
From the reeaction equation;
1 mole of P4O10 yields 4 moles of H3PO4
Hence, 284 g of P4O10 yields 4 moles of H3PO4
The answer is b, the moon is smaller and has less gravity. hope this helps
We know the law of conservation of mass
- It states that mass is neither formed nor destroyed in any chemical reaction.
- Mass of reactants=Mass of products.
Here
- Mg and I_2 are reactants
- MgI_2 is product with some yield.
- Mass of reactants=10+60.0=70.0g
- Mass of MgI_2=53.88g
- Mass of yield=Product-MgI_2=70-53.88=16.12g
Lets find the percentage
The whole Activity , poem and paragraph is missing in the question.
Answer:
(1) Liquid A
(2) Solid A
Explanation:
Using this part of the given poem
Substances and mixtures behave differently,
During boiling and melting most especially
Boiling point of substance is fixed while mixture is not
Substance melts completely but mixture does not
The boiling point of the Pure substance remain fixed after reaching its boiling point this is shown by Liquid A
Solid A is melting completely so Solid A is a pure substance.
This is true as some parts cannot be checked but the radioactive substances can be used in x-rays
