Answer:
20 m/s^2
Explanation:
given,
final velocity (v) = 6000m/s
initial velocity (u) = 0m/s
time taken (t) = 5 minutes
= 5×60second
= 300second
acceleration(a) = ?
we know that,
a = (v-u)/t
= (6000-0)/300
= 20 m/s^2
Question:
Which subscripts complete the chemical formula for the compound?
Answer:
A: 3
B: 8
Answer:
Number of moles = 558.46 mol
Explanation:
Density = 804 g/L
Molecular formula = C13H28
Molar mass = 184.37 g/mol
Distance = 3680 km
Rate = 3.48 L of fuel per 100. km
Volume is calculated as follow;
3.48 = 100
x = 3680
x = 3680 * 3.48 / 100
x = 128.064 L
Number of moles = Mass / Molar mass
Mass = Density * Volume
Mass = 804 * 128.064 = 102963.456 g
Number of moles = 102963.456 / 184.37
Number of moles = 558.46 mol
Answer:
Cu
Explanation:
Copper since it is more reactive than Iron. Hence, it can easily displace ions in an iron based compound.
Answer is: product of chemical reaction would be carbon dioxide.
Balanced chemical reaction: 2CO(g) + O₂(g) → 2CO2(g).
There are same number of atoms of on both side of balanced chemical reaction: four oxygen atoms and two carbon atoms.
Carbon change oxidation number from +2 to +4 and oxygen from 0 to -2.