Answer:
Because each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce. For example, copper produces a blue flame, lithium and strontium a red flame, calcium an orange flame, sodium a yellow flame, and barium a green flame.
Explanation:
Answer:
Reactant concentration, the physical states of the reactants, surface area, temperature and the presence of catalyst.
CH4+2O2 gives 2H2O+CO2
so for every mole of ch4 we produce 1 mole co2
since the molecular weight of ch4 is 16 we can divide 50.6 by 16 to find the number of moles for ch4 which is 3.16. we already know for each mole of ch4 we have one mole of co2. so for 3.16 mole of ch4 we produce 3.16 mole of co2. 1 mole of co2 is 44gram. so 3.16 mole would be 139.15 gram.
Percent yield = 70%
<h3>Further eplanation
</h3>
Percent yield is the comparison of the amount of product obtained from a reaction with the amount you calculated
General formula:
Percent yield = (Actual yield / theoretical yield )x 100%
An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients
Reaction
2H₂ (g) + O₂ (g) → 2H₂O (g)
- mass of H₂O (theoretical) :
The answer is replication. The process of replication allows cells to reproduce and repair body tissue.