The answer is A. <span>The substance changed shape.
There you go!</span>
The test for this is fairly simple.
We take a glowing match or splint near the gas sample, if the glow intensifies, oxygen is present.
If a lit splint or match goes out with a popping sound, this means that hydrogen is present.
Answer:
CaO + H20 => Ca(OH)2
Explanation:
quick lime ia a oxyde and when it reacts with water it gives hydroxide
Im pretty Sure its B Tuesday And Wensday
M₁=50 g
m₀=60 g
w=100m₁/m₀
w=100*50/60=83.3%
