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Recent questions in Chemistry
What material dissolves organic material during cleaning canal
Britter
asked
Dec 17, 2024
by
Britter
8.5k
points
Chemistry
high-school
1
answer
0
votes
16.9k
views
What causes the powder to atomize in fluidized-bed processing? A) Heat B) Pressure C) Airflow D) Vibration
DaPhil
asked
Dec 17, 2024
by
DaPhil
8.8k
points
Chemistry
high-school
1
answer
5
votes
16.7k
views
The fortification of salt with ____ is a cost-effective approach to increasing intake of this micronutrient. Consumption of this fortified salt reduced the number of infants born with severe brain damage
KalyanLahkar
asked
Dec 17, 2024
by
KalyanLahkar
8.5k
points
Chemistry
high-school
1
answer
3
votes
219k
views
A mixture of oxygen, nitrogen, and hydrogen gases exerts a total pressure of 74 kPa. The partial pressure of the oxygen is 21 kPa, and the partial pressure of the nitrogen is 45 kPa. What is the partial
Gulshan Prajapati
asked
Dec 17, 2024
by
Gulshan Prajapati
7.6k
points
Chemistry
high-school
1
answer
0
votes
131k
views
The following reactions can be used to prepare samples of metals. Determine the enthalpy change under standard state conditions for each. a) 2Ag₂O(s)→4Ag(s)+O₂(g) b) SnO(s)+CO(g)→Sn(s)+CO₂(g) c) Cr₂O₃(s)+3H₂(g)→2Cr(s)+3H₂O(l)
Xiaoyun
asked
Dec 17, 2024
by
Xiaoyun
8.0k
points
Chemistry
high-school
1
answer
0
votes
67.7k
views
Convert 94.36 x 10^-5 megaseconds to seconds to nanoseconds
Phani Rahul
asked
Dec 17, 2024
by
Phani Rahul
8.3k
points
Chemistry
college
1
answer
2
votes
207k
views
In one of the questions in my textbook, (bromine + water) is able to replace the -SO3H group attached to phenol via ipso substitution, but in another question, (bromine + Fe) cannot replace the same group
Codigo Morsa
asked
Dec 17, 2024
by
Codigo Morsa
8.5k
points
Chemistry
high-school
1
answer
4
votes
63.2k
views
How many carbon atoms react in this equation: 2C4H10 + 13O2 —> 8CO2 + 10H2O? a. 8 b. 10 c. 16 d. 32
Kill Console
asked
Dec 17, 2024
by
Kill Console
8.0k
points
Chemistry
high-school
1
answer
5
votes
41.5k
views
Use standard enthalpies of formation to calculate ΔH°rxn for the following reaction: SO₂(g) + ½ O₂(g) → SO₃(g)
Blotto
asked
Dec 17, 2024
by
Blotto
8.7k
points
Chemistry
high-school
1
answer
0
votes
221k
views
A gas has a volume of 62.65 L at STP. At what temperature (in °C) would the volume of the gas be 78.31 L at a pressure of 612.0 mm Hg? A) 20°C B) 27°C C) 32°C D) 36°C
Chuck Heatherly
asked
Dec 17, 2024
by
Chuck Heatherly
9.3k
points
Chemistry
high-school
1
answer
4
votes
98.2k
views
Ice actually has negative caloric content. How much energy, in each of the following units, does your body lose from eating (and therefore melting) 70 g of ice? Heat of fusion for water is 6.02 kJ/mol
Romski
asked
Dec 17, 2024
by
Romski
8.5k
points
Chemistry
college
1
answer
5
votes
161k
views
Lab data in an SBO usually reflect a: a) Decrease in Serum Amylase b) Decrease in Serum Lipase c) Increase in Serum Electrolytes d) Increase in Serum Creatinine
Snumpy
asked
Dec 17, 2024
by
Snumpy
8.0k
points
Chemistry
high-school
1
answer
0
votes
110k
views
Why phenol is more acidic?
Marc Scholten
asked
Dec 17, 2024
by
Marc Scholten
8.5k
points
Chemistry
high-school
1
answer
1
vote
96.3k
views
I don’t understand can someone please help:(
SURYA GOKARAJU
asked
Dec 17, 2024
by
SURYA GOKARAJU
8.3k
points
Chemistry
high-school
1
answer
3
votes
206k
views
A foul-smelling substance produced by the action of bacteria on meat contains 58.55% C. 13.81% H, and 27.40% N by mass; its molar mass is 102.2 g/mol. Express your answers as the emprirical and molecular
Hesham Shawky
asked
Dec 17, 2024
by
Hesham Shawky
8.2k
points
Chemistry
high-school
1
answer
5
votes
75.4k
views
(periodic table) Electronegativity ___ top to bottom Option 1: Increases Option 2: Decreases Option 3: Remains constant Option 4: Varies unpredictably
Kpblc
asked
Dec 17, 2024
by
Kpblc
8.1k
points
Chemistry
high-school
1
answer
3
votes
213k
views
How to learn stoichemistry easily
JozeRi
asked
Dec 17, 2024
by
JozeRi
8.2k
points
Chemistry
high-school
1
answer
3
votes
105k
views
Someone please help me
Suroj
asked
Dec 17, 2024
by
Suroj
7.9k
points
Chemistry
high-school
1
answer
2
votes
200k
views
How many moles of HCL are present in 25.00mL of 0.324M HCL solution?
Sidney Gijzen
asked
Dec 17, 2024
by
Sidney Gijzen
8.7k
points
Chemistry
college
1
answer
1
vote
97.9k
views
The diameter of Earth is 12.7Mm. Express this diameter in centimeters. show answer choices A)1.27×108 cm B)1.27×107 cm C)1.27×109 cm D)1.27×105 cm (E) 1.27×106 cm
Tsivia
asked
Dec 17, 2024
by
Tsivia
7.8k
points
Chemistry
high-school
2
answers
0
votes
94.5k
views
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