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Recent questions in Chemistry
A chemist uses atomic absorption spectroscopy to measure the amount of calcium in a urine sample. When preparing the sample for analysis, the chemist adds an excess of La3 to the sample. Why is La3 added
Wahtever
asked
Dec 27, 2023
by
Wahtever
4.0k
points
Chemistry
college
1
answer
9
votes
38.4k
views
Does hydrogen satisfy the octet rule when it bonds with other elements having 2 valence electrons? Why?
Arnabjyoti Kalita
asked
Dec 27, 2023
by
Arnabjyoti Kalita
3.9k
points
Chemistry
college
1
answer
3
votes
185k
views
Uggest one or more improvements that designers could make to the tool or device.
Makeasy
asked
Dec 27, 2023
by
Makeasy
4.5k
points
Chemistry
high-school
1
answer
6
votes
192k
views
The question is below if you can explain in detail
Dan Tello
asked
Dec 27, 2023
by
Dan Tello
4.6k
points
Chemistry
college
1
answer
5
votes
43.8k
views
How many moles are in 0.50 g sodium bromide
Adam Fraser
asked
Dec 27, 2023
by
Adam Fraser
3.5k
points
Chemistry
college
1
answer
0
votes
85.2k
views
Question 7 (2 points) A mocktail is a flavoured cocktail. O True O False
Rahul Chaudhari
asked
Dec 27, 2023
by
Rahul Chaudhari
4.4k
points
Chemistry
college
2
answers
12
votes
63.6k
views
An organism’s environment includes two types of factors: Abiotic and biotic. Abiotic factors are those parts of the environment that are living such as humans, bacteria, fungi and protists. True or false
Christophetd
asked
Dec 27, 2023
by
Christophetd
3.5k
points
Chemistry
high-school
1
answer
3
votes
136k
views
In his experiments, J. J. Thomson discovered a tiny stream of particles. (Please answer all 5 questions) *Why did he conclude that these particles were negatively charged? *What were these particles eventually
Michael Pacheco
asked
Dec 27, 2023
by
Michael Pacheco
4.1k
points
Chemistry
college
1
answer
5
votes
201k
views
Which type of ecosystem is the most biodiverse? temperate marine rainforest taiga
Erick Castrillo
asked
Dec 27, 2023
by
Erick Castrillo
4.6k
points
Chemistry
high-school
2
answers
18
votes
32.8k
views
How to Separate Iodine and sulfur by technique of saparation
Kilokahn
asked
Dec 27, 2023
by
Kilokahn
3.2k
points
Chemistry
high-school
1
answer
18
votes
154k
views
The elements I and Te have similar average atomic masses. A sample that was believed to be a mixture of I and Te was run through a mass spectrometer, resulting in the following data. All of the following
AlanK
asked
Dec 27, 2023
by
AlanK
3.7k
points
Chemistry
high-school
1
answer
4
votes
45.6k
views
How many moles of water is produced if used 0.5 mol of NaOH and 0.5 mol of HCl
Box Box Box Box
asked
Dec 27, 2023
by
Box Box Box Box
4.1k
points
Chemistry
high-school
1
answer
14
votes
140k
views
TO EARN FULL CREDIT YOU MUST SHOW ALL WORK! For each item below determine the name, find it's molar mass, and it's percent composition
Irakli Lekishvili
asked
Dec 27, 2023
by
Irakli Lekishvili
4.5k
points
Chemistry
college
1
answer
1
vote
95.7k
views
How many molecules of CH4 are in 24.1 g of this compound?
Luis Vargas
asked
Dec 27, 2023
by
Luis Vargas
4.9k
points
Chemistry
college
1
answer
23
votes
40.5k
views
What is the Link made between numbers of valence electron and ionization energy
Ilivewithian
asked
Dec 27, 2023
by
Ilivewithian
4.0k
points
Chemistry
college
1
answer
5
votes
203k
views
Which of the following best illustrates a natural process acting as a constructive force
Amir Alagic
asked
Dec 27, 2023
by
Amir Alagic
4.3k
points
Chemistry
high-school
1
answer
22
votes
113k
views
Select all correct statements dealing with electron affinity. a) In general the first electron affinity is: X(g) → X+(g) + e-b) It is the enthalpy change associated with the addition of an electron to
Joshpaul
asked
Dec 27, 2023
by
Joshpaul
4.7k
points
Chemistry
college
1
answer
1
vote
181k
views
The Sierra Nevada, a mountain range in California, is made largely of intrusive rock that was formed underground.Which process explains why rock that formed underground is now aboveground in the Sierra
CnrL
asked
Dec 27, 2023
by
CnrL
4.0k
points
Chemistry
high-school
1
answer
1
vote
83.7k
views
Exercise N° 62 :The next reaction is at equilibrium.4HCl (g) + O2 (f) <=> 2H2O (g) + 2Cl2 (g)∆H ° = -114.4KjDescribe 4 modifications that can be made to the mixture to increase the amount of Cl2 (g) to balance.
Fjxx
asked
Dec 27, 2023
by
Fjxx
4.3k
points
Chemistry
college
1
answer
5
votes
109k
views
I need help understanding this is not a test but study material
Gurgen Hakobyan
asked
Dec 27, 2023
by
Gurgen Hakobyan
4.7k
points
Chemistry
college
1
answer
1
vote
8.5k
views
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