How many atoms of nitrogen and oxygen are present in a molecule of dinitrogen pentoxide?
2 answers:
Answer:
Nitrogen = 2
Oxygen = 5
Explanation:
di in nitrogen means 2
pent in oxide means 5
Check this by looking at the chemical formula and it's correct N2O5
- Hope that helps! Please let me know if you need further explanation.
Answer: 7
Explanation: oxygen has 5 atoms and nitrogen has 2. Put them together and you get 7
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Answer:
Boron has 3 valence electrons
Answer:
mass of salt 6.72g
Explanation:
mass of the combine mass with salt- mass of the empty beaker
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Answer:
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10HSiCl3 + 15H2O = H10Si10O15 + 30HCl
Answer: 4m/s2 (B)
Explanation:
Force = mass × acceleration
Force given is 8N
Mass=2kg
Acceleration =?
Substitute into the formula
F=ma
8=2a
A=8/2
A=4m/s2
Acceleration used is 4m/s2 (B)
