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Recent questions in Chemistry
How many boundaries of a mixture composed of 2 molecules CO2(g), H2O (at 0°C), ammonia gas, and methanol (aq)? a. 1 b. 2 c. 3 d. 4
Oblivious Sage
asked
Oct 12, 2024
by
Oblivious Sage
7.4k
points
Chemistry
high-school
1
answer
5
votes
35.5k
views
Substances w x y and z have a physical properties shown below when they substances are mixed physical methods of separating them may include state the best methods from the ebola list by which each of
Save
asked
Oct 12, 2024
by
Save
8.4k
points
Chemistry
high-school
1
answer
1
vote
119k
views
A solution of the iron-transport protein transferrin was titrated with a standard solution of Fe3 . The blank absorbance was 0.04, and the absorbance of 10.00 mL of the transferrin solution measured after
Snogglethorpe
asked
Oct 12, 2024
by
Snogglethorpe
7.4k
points
Chemistry
college
1
answer
2
votes
176k
views
When identifying organic compounds with acidified potassium dichromate (VI) what are the 2 possible results?
Yenny
asked
Oct 12, 2024
by
Yenny
8.2k
points
Chemistry
high-school
1
answer
5
votes
218k
views
The newspaper headline below was printed the day after Black Tuesday: A photo shows the front page of the New York Times for October 30, 1929. The headlines read, Stock Collapse in 16,410,030 Share Day
Kevin Wilson
asked
Oct 12, 2024
by
Kevin Wilson
8.1k
points
Chemistry
college
1
answer
5
votes
68.3k
views
What is the name for the compound IF₇?
Andrew Kozak
asked
Oct 12, 2024
by
Andrew Kozak
7.8k
points
Chemistry
high-school
1
answer
5
votes
21.1k
views
The combined gas law states the relationship among pressure, temperature, and volume of a fixed amount of gas. A) True. B) False.
Hyman
asked
Oct 12, 2024
by
Hyman
8.4k
points
Chemistry
high-school
1
answer
4
votes
102k
views
Why does tap water have more cohesion than salt water? a) Tap water has a higher salt concentration. b) Salt water has stronger hydrogen bonding. c) Tap water has more dissolved ions. d) Salt water disrupts
Element
asked
Oct 12, 2024
by
Element
8.1k
points
Chemistry
high-school
1
answer
4
votes
97.2k
views
Consider the reaction n204 → 2n02 and that дн; for n204 is 10. kj/mol ah; for no, is 34 kj/mol what is the standard enthalpy change of the reaction?
Abhilash Kishore
asked
Oct 12, 2024
by
Abhilash Kishore
8.1k
points
Chemistry
high-school
1
answer
2
votes
45.5k
views
A small piece of Cr metal reacts with dilute HNO3 to form H2 (g), which is collected over water at 25oC in a large flask. The total pressure in the flask is 762 torr. Use the table provided to determine
Carlsborg
asked
Oct 12, 2024
by
Carlsborg
8.9k
points
Chemistry
high-school
1
answer
2
votes
20.5k
views
Nitrous Oxide Mechanism Volume in tank when gauge falls below 745 How to calculate volume left in Nitrous cylinder
Alexandre Neukirchen
asked
Oct 12, 2024
by
Alexandre Neukirchen
7.9k
points
Chemistry
high-school
1
answer
5
votes
115k
views
How do you convert a Celsius temperature to Fahrenheit? A) Multiply by 9/5 and then add 32 B) Subtract 273.15 C) Subtract by 32, then multiply by 5/9 D) Add 273.15 E) Celsius is always the same as Fahrenheit
Dave Hilditch
asked
Oct 12, 2024
by
Dave Hilditch
8.4k
points
Chemistry
high-school
1
answer
4
votes
58.8k
views
Noble gases are used in many situations where a safe and constant environment must be maintained. For example, Helium is used to provide a protective atmosphere for making fiber optics and semiconductors.
Skywall
asked
Oct 12, 2024
by
Skywall
8.4k
points
Chemistry
high-school
1
answer
0
votes
184k
views
Which one of the following pairs are the common languages of science? A. English & Latin B. Mathematics & Units C. Standards & Measures D. English & French
Rachel Fishbein
asked
Oct 12, 2024
by
Rachel Fishbein
7.1k
points
Chemistry
college
2
answers
0
votes
142k
views
How is intergranular corrosion removed? How is it inspected?
Groch
asked
Oct 12, 2024
by
Groch
7.4k
points
Chemistry
high-school
1
answer
2
votes
230k
views
How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O?
Nhu Trinh
asked
Oct 12, 2024
by
Nhu Trinh
7.9k
points
Chemistry
college
1
answer
0
votes
187k
views
Compare the evidence of a new substance being formed before and after heating (a) a nichrome wire and (b) magnesium wire.
Jon Reid
asked
Oct 12, 2024
by
Jon Reid
8.2k
points
Chemistry
high-school
2
answers
2
votes
76.4k
views
According to the following reaction, which molecule is acting as a base? 1) H₂O 2) H₂SO₄ 3) H₃O⁺ 4) HSO4-
CupawnTae
asked
Oct 12, 2024
by
CupawnTae
8.3k
points
Chemistry
high-school
1
answer
3
votes
219k
views
If you have cut fries exhibiting the acid effect, what should you do?
Greig
asked
Oct 12, 2024
by
Greig
8.8k
points
Chemistry
high-school
1
answer
1
vote
64.3k
views
How can you find the number of protons in an ion? A) Subtract the number of neutrons from the atomic number B) Add the number of neutrons to the atomic number C) Add the number of electrons to the atomic
Marcelo Tataje
asked
Oct 12, 2024
by
Marcelo Tataje
8.1k
points
Chemistry
high-school
1
answer
1
vote
140k
views
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