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Ipatiy [6.2K]
3 years ago
11

In a chemical equation, the arrow always points toward what?

Chemistry
1 answer:
blondinia [14]3 years ago
7 0
It always points towards the products.
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what do dots represent in a electron dot diagram and what does the amount of dots tell us about each atom
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4 years ago
What is the name of the uppermost layer of the atmosphere? Why does it feel cold there, even though the temperature can be very
Aleonysh [2.5K]
That would be the exosphere. The reason it feels cold, despite high temperatures, is due to lower air density.
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5 0
4 years ago
What mass of carbon dioxide could be made from 100 tonnes of calcium carbonate?
MA_775_DIABLO [31]
Total mass of CaCO3 = 40 amu of Ca + 12amu of C + 16×3 amu of oxygen = 100amu of CaCO3




i.e 100 tonnes of CaCO3 .


mass of CO2 = 12amu of C + 2× 16amu of O = 44 amu of CO2




mass % of CO2 in CaCO3 = (44/100)×100 =44%


i.e
44% of 100 tonnes is CO2.
=44 tonnes of CO2.

therefore, 44% of CO2 is present in CaCO3.








3 0
3 years ago
How would you figure the number of neutrons in an atom?
Sonbull [250]
<span>Mass Number = (Atomic Number) + (Number of Neutrons) so you solve for the Number of Neutrons and you get:
Number of Neutrons = (Mass number) - (Atomic Number) 

Mass Number equals protons plus neutrons, round atomic weight to nearest whole number
Atomic Number equals number of Protons</span>
3 0
4 years ago
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How many total moles of gas are there in the reactants and how many total moles of gas are there in the products?
anygoal [31]

Total moles of gas in the reactants: 4

Total moles of gas in the products: 2

7 0
2 years ago
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