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Recent questions in Chemistry
Why do we have answer with power like 4.5 x 10-3? Where did the power came from?(for example, we have 0.0045 and answered like 4.5 x 10^-3)
TyMayn
asked
Jul 5, 2023
by
TyMayn
3.5k
points
Chemistry
college
1
answer
1
vote
162k
views
At what temperature will 13.2 grams of neon gas occupy 12.30 liters at 1.95 atmospheres? Answer
Elnaz
asked
Jul 5, 2023
by
Elnaz
4.2k
points
Chemistry
college
1
answer
12
votes
19.2k
views
Who developed the concept that the total pressure of a mixture of gases is the sum of their partial pressures?.
NullVoxPopuli
asked
Jul 5, 2023
by
NullVoxPopuli
3.5k
points
Chemistry
high-school
1
answer
25
votes
129k
views
A small-sized woman has 6.4 x 10-3 moles of hemoglobin (molar mass of hemoglobin = 64, 456 g/mol) in her blood. Show your work How many hemoglobin molecules are in this person’s body? What is the mass
JOM
asked
Jul 5, 2023
by
JOM
4.6k
points
Chemistry
college
1
answer
11
votes
41.7k
views
What happens to an atom of sulfur (S) if it loses an electron?Question options:A) It becomes an anion.B) It becomes inert.C) It becomes a cation.D) It becomes a molecule.
Roman Pletnev
asked
Jul 5, 2023
by
Roman Pletnev
4.3k
points
Chemistry
college
1
answer
1
vote
176k
views
A graduated cylinder is filled to 20mL. A piece of silver is added to the cylinder and the volume of water increases to 30mL. The density of silver is 10.49 g/mL, what is the mass of this piece of silver?
Walter A
asked
Jul 5, 2023
by
Walter A
4.1k
points
Chemistry
college
1
answer
2
votes
51.2k
views
Es endotermica o exotermica? naoh (ac) + hcl (ac) --> nacl (ac) + h2o (l) + 58.4 kj
Jefry
asked
Jul 5, 2023
by
Jefry
3.9k
points
Chemistry
high-school
1
answer
0
votes
146k
views
What test can i use to determine what’s inside of a bubble
Bgies
asked
Jul 5, 2023
by
Bgies
4.0k
points
Chemistry
college
1
answer
5
votes
37.2k
views
For one green bacterium, how many new cells will it form when it reproduces? What will the color of each new cell be?
Deterb
asked
Jul 5, 2023
by
Deterb
3.8k
points
Chemistry
middle-school
2
answers
1
vote
225k
views
2.(a) Draw the structural formula of octan-1-ol (C8H17OH). (b)What class of organic molecule is octan-1-ol? Explain your reasoning. (Classes of organic molecules include alkanes, alkenes, alkynes, alcohols,
Yugene
asked
Jul 5, 2023
by
Yugene
3.9k
points
Chemistry
college
1
answer
1
vote
227k
views
Question 3 Sugar is made of carbon, hydrogen, and oxygen atoms. Sugar is
Pith
asked
Jul 5, 2023
by
Pith
3.8k
points
Chemistry
high-school
1
answer
4
votes
74.8k
views
cesium is in the lower left section of the periodic table, and helium is in the upper right. which has the larger atomic radius?
Steven Muhr
asked
Jul 5, 2023
by
Steven Muhr
4.6k
points
Chemistry
high-school
1
answer
3
votes
192k
views
what is the molarity of a nitric acid solution HNO3 if 20 ml of the solution is needed to exactly neutralize 10 ml of a 1.67 M NaOH solution?
Morten Bergfall
asked
Jul 4, 2023
by
Morten Bergfall
4.6k
points
Chemistry
high-school
1
answer
15
votes
132k
views
How does burning fossil fuels cause an increase of carbon in the air?
Stefan De Laet
asked
Jul 4, 2023
by
Stefan De Laet
4.2k
points
Chemistry
high-school
2
answers
18
votes
84.8k
views
Match the chemical reactions with their properties.
Jallch
asked
Jul 4, 2023
by
Jallch
4.0k
points
Chemistry
high-school
1
answer
22
votes
22.1k
views
Calculate the mass of nitric acid 63 gmole dissolved in 0.48 kg of water with the molarity of 1.2m
Pesho Hristov
asked
Jul 4, 2023
by
Pesho Hristov
3.5k
points
Chemistry
high-school
1
answer
14
votes
104k
views
___ Uses moving air and doesn't pollute the atmosphere.____ uses dead plant matter and burning it releases carbon emissions into the atmosphere. 1. 2. a. Biomass Energy a. Biomass Energy b. Solar energy
AbiSaran
asked
Jul 4, 2023
by
AbiSaran
3.7k
points
Chemistry
high-school
2
answers
3
votes
200k
views
Two diseases wiped out by vaccines are what and what
Mehmet Kaplan
asked
Jul 4, 2023
by
Mehmet Kaplan
3.8k
points
Chemistry
high-school
1
answer
5
votes
199k
views
Oxygen ( O ) has three naturally occurring isotopes: O16, O17, and O18. O16 is the most abundant isotope with an abundance of 99.757% and an isotopic mass of 15.995 u. The second most abundant isotope
Hendra Anggrian
asked
Jul 4, 2023
by
Hendra Anggrian
4.1k
points
Chemistry
college
1
answer
3
votes
98.3k
views
Is distilled water act as preservative?
Vlad Nikiforov
asked
Jul 4, 2023
by
Vlad Nikiforov
3.8k
points
Chemistry
college
1
answer
3
votes
101k
views
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