Answer: 15.3 grams C
Explanation: 1 mole is 6.02x10^23 atoms. We can find the moles of C in 7.675 x 10^23 atoms of C by dividing:
(7.675 x 10^23 atoms C)/(6.02x10^23 atoms C/mole) = 1.275 moles C
The molar mass of carbon is 12g/mole. So the mass of 7.675 x 10^23 atoms is (1.275 moles C)*(12 g/mole C) = 15.3 grams.
The answer is air.
*Couldn't see the last two options*
Answer:
After a few minutes pass, the concentration of Ag+ and Br- will be lower than when the two solutions were first mixed.
AgBr precipitate will spontaneously form.
Explanation:
After the net ionic equation AgBr forms
The answer is D here why.
insects look and eat nectar in flowers.So they will go to a flower and eat the nectar after they are done eating the nectar they will have pollen on themself.
So when they go to a new flower to get nectar some of the pollen will go off the insect and into the flower.
The wind help 20% to.
First, we write an equation for the reaction of Hydrogen and Oxygen to produce water:
H₂ + O₂ ⇒ H₂O
This equation is not balanced, we then balance the Oxygens:
H₂ + O₂ ⇒ 2H₂O
And now the Hydrogens:
2H₂ + O₂ ⇒ 2H₂O
Therefore, if one mole of Oxygen reacts, it will require two moles of Hydrogen and produce two moles of water.