The answer is D.
"Orange light reflected from the T-shirt enters human eyes."
Answer:
4.43 mol
Explanation:
PV = nRT => n = PV/RT = (1 atm)(99.2L)/(0.08206 L Atm/mol K)(273K)= 4.43 mol
Answer:
82.18% is the mass percentage of bromine in the original compound.
Explanation:
Mass of AgBr = 1.1166 g
Moles of AgBr = 
According to reaction, 1 mole of AgBr is obtained from 1 mole of bromide ions , then 0.0059466 moles of AgBr will be formed from :
of bromide ions
Mass of 0.005939 moles of bromide ions :
0.0059466 mol × 79.90 g/mol = 0.4751 g
Mass of the sample = 0.5781 g
Mass percentage of bromine in sample :
82.18% is the mass percentage of bromine in the original compound.
Answer:
Option-B (Table Salt) is the correct answer.
Explanation:
Salt formation takes place when Metal (like Na) and Non-metals (like Cl₂) are reacted. In given statement the reaction will be as follow:
2 Na + Cl₂ → 2 NaCl
Above reaction can be divided as;
Oxidation Reaction:
The Sodium Atom (Na) being metal loses its single valence electron to attain a stable noble gas configuration as,
Na → Na⁺ + 1 e⁻
Reduction Reaction:
The Chlorine Atom being non-metals accepts the electron from Na atom and changes into Chloride ion as,
Cl₂ + 2 e⁻ → 2 Cl⁻
Formation of Salt:
Hence, the Na⁺ and Cl⁻ formed attracts each other and form an Ionic bond as,
Na⁺ + Cl⁻ → NaCl
Note: You should remember that NaCl (Sodium Chloride) is also known as Table Salt :)
