Answer:
#2.
Explanation:
Look at the charges. Both are positive, therefore both are cations.
Answer: they both contain the same metal(calcium)
Explanation: calcium burns with a characteristic orange color.
When the balanced reaction equation of methane combustion is:
CH4 + 2O2 →CO2 + 2H2O
so, we can see that each 1 mole of methane combusted will give 2 moles of water as a product.
so first, we need to get the moles of methane =
= mass of methane /molar mass of methane
= 52.6 g / 16.04 g/mol
= 3.28 moles
when 1 mol of methane produces→ 2 moles of water
∴ 3.28 moles methane produces → X moles of water
∴ moles of water = 3.28 * 2
= 6.56 moles
when each 1 mole of water has 6.02 x 10^23 (Avogadro's number ) individual molecules:
∴number of molecules of water = 6.56 * 6.02 x 10^23
= 3.9 x 10^24 molecules
The precision of the <span>volume of liquid delivered by the slanted buret would be affected by giving you erroneous readings. You will have more volume than what really is the volume. Hope this answers the question. Have a nice day.</span>
