Answer:
Atom - un átomo de hidrógeno pierde un electrón, adquiere una carga positiva
Molecule - Al aumentar el calor, las moléculas se alejan en mayor medida unas de otras y se intensifica su estado de agitación.
The answer for the following problem is mentioned below.
Explanation:
Given:
mass of iron (m) = 15.75 grams
heat (q) = 1097 J
initial temperature (
) = 25°C
final temperature (
) = 177°C
To find:
specific heat (c)
We know;
c = q ÷ mΔT
where;
c represents the specific heat
q represents the heat
m represents the mass
t represents the temperature
c = 
c = 0.45 J/kg°C
<u><em>Therefore the specific heat capacity of iron is 0.45 J/kg°C.</em></u>
Answer:
The theoretical yield of carbon dioxide formed from the reaction of methane and oxygen gas is 1 mol.
Explanation:
The equation below shows the reaction of combustion of methane:
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(g)
When no reactants are wasted and the reaction is complete, 1 mol of gaseous CO₂ will be produced. This means that the theoretical yield of carbon dioxide is 1 mol.
Answer:
Velocity = Distance Covered÷Time Taken
Velocity = 4000÷8
V = 500
