Which 2 diagrams show suitable methods for investigating the speed of the reaction
1 answer:
I would say D: 2 and 4.
The first line of the question is very important. X reacts with Y to form a gas.
For 2, we let the gas escape and measure the change in mass during the reaction.
For 4, we capture the change in volume of gas during the reaction.
1 does not work: some of the gas escapes through the cotton and the gas captured is not recorded correctly.
3 does not work: the gas is trapped and the mass balance does not record a change in mass.
You might be interested in
population is the number of species living in a given area if this is regarding biology or earth studies :)
D, Neon and argon are both noble gases and contain almost the same elements.
Answer:
pinto beans!!
Explanation:
correct on edge
Answer:
7cm square is the answer
Hope it's helpful
Answer:
atomic mass ( N =14 , H = 1×3 that means 14+3=17
340gram×17gram / mole
=5780mole
atomic mass ( H= 1×2 ,O= 16 =16+2 =18
90gram×18gram /mole
=1620mole
I think 340g ammonia (NH3)
