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A student has blocks of four different materials of identical mass. The materials are ice, gold, aluminum, and Styrofoam. Which
4 answers
asked by
Sara
982 views
when u use different materials, what are they most likely to be made from: elements, compunds, or mixtures? Which of the three
4 answers
asked by
Sara
883 views
1.)A sample of oxygen took 55 seconds to travel a certain distance. How long would it take for the same number of moles of
4 answers
asked by
Bryan
885 views
A 5.00 g sample of Al pellets (specific heat = .89 J/g degrees c) and a 10.00 g sample of Fe pellets (specific heat = .45 J/g
2 answers
asked by
Niclas
598 views
Wirte the half equation for the reduction of acetic acid.
I Know that a colourless odourless gas is formed in the process but I
4 answers
asked by
Ben
412 views
1)Fill in the blanks. In a liquid, particles are _____arranged. They move about in ____ directions and slide over one another.
5 answers
asked by
anne
1,712 views
What compound is made when sodium is burned in air
3 answers
asked by
Alisha
295 views
syringe filled with water and left by the sink in the sunshine. Ten minutes later sees little puddle of water under the syringe
2 answers
asked by
Michelle
1,062 views
The alchemists were lookin 4 control over their world. what would the philosophers stone enable them to do? how would this give
3 answers
asked by
Sara
569 views
I did a lab on Elements and Compounds and I would be grateful if u could provide and tell me some information on my work.
Lab
2 answers
asked by
Immy
723 views
Analysis questions:
A) What evidence is there that the gas bubbles formed in the first part of the investigation were hydrogen
2 answers
asked by
Immy
564 views
Analysis questions:
A) What evidence is there that the gas bubbles formed in the first part of the investigation were hydrogen
3 answers
asked by
Immy
1,924 views
Calculate the number of grams of carbon dioxide that can be absorbed by a complete reaction with a solution that contains 5.00
2 answers
asked by
Kelsey
591 views
In the following test for Sulfated Ash, ammonium carbonate solution was added. What is the purpose of adding ammonium carbonate
3 answers
asked by
anne
977 views
? ZnS+?O2 !? ZnO+? SO2 ,
what is the maximum amount of ZnO (81.4084 g/mol) which could be formed from 12.85 g of ZnS (97.474
2 answers
asked by
K.M.
549 views
Methyl amine is a weak base with a pKb=3.35. Consider the titration of 30.0mL of .030M of Methyl amine with 0.025M HCl.
a) Write
1 answer
asked by
Joe
435 views
1. What is Charles’s law?
• State the definition of the law in words. • What are the assumptions of Charles’s law? •
4 answers
asked by
Help needed.... Danielle
2,046 views
List materials that are commonly found at home or in school that have:
a. Different structures and exhibit different properties
2 answers
asked by
Annika
858 views
What is ΔH° for vaporizing liquid water at 25°C?
What is ΔS° for vaporizing liquid water at 25°C? What is ΔG° for
1 answer
asked by
Ana Luisa
288 views
Can you please help me solve r1/r2 = sqrt(M2/M1)for M1.
My answer: M1=M2r2^2/r1^2 Is this correct?
3 answers
asked by
Maddy
738 views
How would I figure out how far the distance in kilometers between the sun and earth be if it takes 8.3 minutes for light to
1 answer
asked by
Bagel
376 views