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Recent questions in Chemistry
Balance the following equation: H₂O₂(l) → H₂(g) + O₂(g)
Dvkch
asked
Oct 7, 2024
by
Dvkch
8.5k
points
Chemistry
high-school
1
answer
4
votes
46.3k
views
Which chemical equation does not demonstrate the conservation of matter? A) N2 + 3H2 à 2NH3 B) CF4 + 2Br2 à CBr4 + 2F2 C) CH4 + 2O2 à CO2 + 2H2O D) 2P4 + 3O2 à 2P2O3
Zhao Peng
asked
Oct 7, 2024
by
Zhao Peng
8.7k
points
Chemistry
high-school
1
answer
1
vote
162k
views
How many significant DIGITS are in the measured value, 80,050 s?
Volvox
asked
Oct 7, 2024
by
Volvox
8.2k
points
Chemistry
high-school
1
answer
3
votes
181k
views
Buffer capacity (?) is defined as the moles of an acid or base necessary to change the pH of a solution by 1, divided by the pH change and the volume of buffer in liters; it is a unitless number. A buffer
Diastrophism
asked
Oct 7, 2024
by
Diastrophism
8.4k
points
Chemistry
high-school
1
answer
5
votes
146k
views
What is the mass of 0.25 moles of calcium sulfate [CaSO4]?
Zeno Tsang
asked
Oct 7, 2024
by
Zeno Tsang
8.5k
points
Chemistry
college
1
answer
3
votes
201k
views
What is the molarity of 34.1 g of MgS in 945 ml of solution? a) 0.5 M b) 1.0 M c) 2.0 M d) 3.0 M
Vishal Modi
asked
Oct 7, 2024
by
Vishal Modi
7.6k
points
Chemistry
high-school
1
answer
4
votes
194k
views
Functional group properties Match the appropriate functional groups to the physical and chemical properties described. - Nonpolar, hydrophobic, found in hydrocarbon chains.
Jake Mulhern
asked
Oct 7, 2024
by
Jake Mulhern
8.3k
points
Chemistry
high-school
2
answers
4
votes
58.4k
views
What is the chemical purpose of adding HCl in this step? a) Neutralizing a base b) Initiating a reaction c) Increasing acidity
Kukeltje
asked
Oct 7, 2024
by
Kukeltje
7.3k
points
Chemistry
high-school
1
answer
0
votes
59.1k
views
The equilibrium constant (Kc) for this reaction is 1.60 at 990 °C: a) Provide the reaction b) Identify the products c) Calculate the initial concentration d) Determine the equilibrium concentrations
Datajoely
asked
Oct 7, 2024
by
Datajoely
7.7k
points
Chemistry
high-school
1
answer
1
vote
13.9k
views
How many grams of Oxygen gas (O₂) are needed to completely react with 9.30 moles of aluminum?
Aif
asked
Oct 7, 2024
by
Aif
7.9k
points
Chemistry
high-school
1
answer
4
votes
107k
views
Which element is in the noble gas family? O A. Nitrogen (N) OB. Radon (Rn) OC. Iodine (1) OD. Oxygen (0)
Cataster
asked
Oct 7, 2024
by
Cataster
7.8k
points
Chemistry
college
1
answer
3
votes
197k
views
What is the molality of a solution that contains 31.0 g HCI in 5.00 kg water?
Lennysan
asked
Oct 7, 2024
by
Lennysan
8.3k
points
Chemistry
high-school
1
answer
4
votes
212k
views
Which of the following statements about atoms is false? A. Each atom has a dense, positively charged nucleus and a cloud of negatively charged electrons, held in orbit by electrostatic attraction. B. The
Ealhad
asked
Oct 7, 2024
by
Ealhad
8.3k
points
Chemistry
high-school
1
answer
5
votes
84.3k
views
Which of the following statements explains why livestock, particularly cows, are not considered climate neutral? A. Livestock emit carbon dioxide during digestion, contributing to the greenhouse effect.
Serop
asked
Oct 7, 2024
by
Serop
8.6k
points
Chemistry
high-school
1
answer
0
votes
39.0k
views
Calculate the pH of a sodium hydroxide solution with a pOH of 1.60
Wayne Chiu
asked
Oct 7, 2024
by
Wayne Chiu
9.1k
points
Chemistry
high-school
1
answer
2
votes
182k
views
4. Calculate the molarity of a solution if there are 2.2 mol of NH,OH in 1.3 L of solution.
ODDsKooL
asked
Oct 7, 2024
by
ODDsKooL
9.3k
points
Chemistry
high-school
1
answer
1
vote
63.8k
views
How many grams of oxygen would there be in 1.00 liter of oxygen at STP?
Raymondralibi
asked
Oct 7, 2024
by
Raymondralibi
7.8k
points
Chemistry
college
1
answer
2
votes
85.9k
views
How many formula units are in 230 grams of ammonium hydroxide, NH₄OH? 2.7 × 10²³ 6.022 × 10²³ 1.2 × 10²⁴ 3.6 × 10²⁴
Jasonfealy
asked
Oct 7, 2024
by
Jasonfealy
7.5k
points
Chemistry
high-school
1
answer
2
votes
210k
views
How many students would it take to equal the power of a 100 W bulb?
ByeBye
asked
Oct 7, 2024
by
ByeBye
8.0k
points
Chemistry
high-school
1
answer
2
votes
194k
views
The human oral LD50 for arsenic is 15mg/kg and you weigh 80kg. Should you be concerned if you ingest 1.5g? Why or why not? Explain in detail - show calculations to prove your response
Dnlbrky
asked
Oct 7, 2024
by
Dnlbrky
8.6k
points
Chemistry
college
1
answer
5
votes
46.7k
views
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