<u>Answer</u>:
Final velocity: 1200 m/s
<u>Explanation</u>:
Formula: 
<u>Where</u>:
a = average acceleration
v = final velocity
vo = starting velocity
t = elapsed time
<em>Here the final velocity is unknown which we have to find. The initial is 0 m/s</em>
<em>as it was at rest. The time taken: 150 seconds. Acceleration given 8.0 m/s²</em>
using the formula:
m/s
Explanation:in testing for oxygen a glowing splint is used.
the glowing splint is brought in the presence of the test tube containing the gas
the glowing splint rekindles or lights up showing that oxygen is present.
this is a positive test because oxygen supports burning or combustion
Answer:
A
Explanation:
They will collect samples from different sites and write their observations
4 NH₃ + 3O₂ --> 2N₂ + 6H₂O
First, make sure that this is a balanced equation.
There are 4 moles of nitrogen on the left side, and 4 moles of nitrogen on the right side.
There are 12 moles of hydrogen on the left side, and 12 moles of hydrogen on the right side.
There are 6 moles of oxygen on the left side, and 6 moles of oxygen on the right side.
The equation is therefore balanced, and we may proceed.
a) the mole ratio for NH₃ to N₂ is 4 to 2, which can be simplified to 2:1 or 2/1.
b) the mole ratio for H₂O to O₂ is 6 to 3, which can be simplified to 2:1 or 2/1.
A, as carbon is an atomic substance - element
