How many grams of co2 are used when 6.5 g of o2 are produced

Answer : The mass of used are 8.8 grams.

Solution : Given,

Mass of = 6.5 g

Molar mass of = 32 g/mole

Molar mass of = 44 g

First we have to calculate the moles of .

Now we have to calculate the moles of

The balanced chemical reaction is,

From the balanced reaction we conclude that

As, 1 mole of produced from 1 mole of

So, 0.20 mole of produced from 0.20 mole of

Now we have to calculate the mass of

Therefore, the mass of used are 8.8 grams.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."