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Does anyone know why jishka changed their name??
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When 2 moles of ammonia (NH3) decomposes into nitrogen gas (N2) and hydrogen gas (H2), how many moles of nitrogen gas are
1 answer
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Use the chemical equation to answer the question. 2Ag(s) + H2S(g) – Ag2S(s) + H2(g) The molar mass of silver (Ag) is 108
1 answer
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A student claims that the reaction of hydrogen and oxygen to form
water is evidence supporting the claim that mass is conserved
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CONNEXUS alternate test?
A student claims that mass is not conserved in chemical reactions and uses a reaction in which they
1 answer
583 views
A car travels 12 km West, 18 km South. What is the total car displacement? The car takes 10 minutes to travel from each initial
6 answers
786 views
An ant crawls on a tabletop. It moves 2cm East, turns 3cm 40(degrees) North of East and finally moves 2.5cm North. What is the
2 answers
6,872 views
Hi Im reposting incase my original post doesn't get read. Please see bottom for additional info that I need help getting
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Hi Please help verify my answer to the following question:
0.500g of pure phosphorous was burned in excess pure oxygen to give a
2 answers
1,698 views
The fact that marble,chalk and limestone all contain calcium carbonate is a problem. Explain why and give examples.
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Forty miles above the earth's surface the temperature is 250 K and the pressure is only 0.20 mm Hg. What is the density of air
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A helium-filled balloon of the type used in long-distance flying contains 420,000 ft3 (1.2 times 107 L) of helium. Suppose you
2 answers
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Answers (12)
Probility 7
What is the p7 A 1/7 B 1/8 C idk D idk
I need help Bot
Do you have the rest?
Pleaseeee i really need help. my parents are getting mad for not taking quiz yet
What are quiz answers
And where did you get 64.9? Is that the velocity or what?
what will i divide by 1/3? And why should I divide it by 1/3?
Could you pleas explain it further? Thanks ;)
Thank You!!
This is very helpful. I'm sure this will be reviewed in upcoming classes and understanding this information will help me be a bit ahead of the game. Thank you very much for your help, I'm sure it wasn't an easy feast to type all this information down. Very
Here is wht I did if you can please tell me where I went wrong would be appreciated. resulting compound phosphorous oxide mass = 1.145g # of moles of Phosphorus = 0.500g/30.97g/mol = 0.0161446mol # of grams of combined phosphorus oxide = 1.145g-0.500g (P)
