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Recent questions in Chemistry
Calculate the average rate of reaction between 20.0s and 10.0s given the following data. Assume A B Time(s) 0.0 5.0 10.0 15.0 20.0 O 5.0 x 10'3 M/s O 10 x 10¹ M/s O 1.2 x 10¹2 O 6.9 x 10¹9 M/s Concentration
Atejeda
asked
Oct 5, 2024
by
Atejeda
6.9k
points
Chemistry
high-school
1
answer
5
votes
60.7k
views
Review: Write the nuclear equation for the alpha and gamma decay of Thorium - 231.
MattClarke
asked
Oct 5, 2024
by
MattClarke
7.4k
points
Chemistry
high-school
1
answer
2
votes
97.4k
views
What mass of melamine, c₃n₃(nh₂)₃, will be obtained from 113.0 kg of urea, co(nh₂)₂, if the yield of the overall reaction is 73.0 % ?
Urban
asked
Oct 5, 2024
by
Urban
8.3k
points
Chemistry
high-school
1
answer
2
votes
18.9k
views
A reaction occurs when a solid X is placed into a solution Y. As a result, the temperature of the new solution increases by 3°C. The temperature rises another 2°C when more of solid X is added to the solution.
Birdamongmen
asked
Oct 5, 2024
by
Birdamongmen
8.3k
points
Chemistry
high-school
1
answer
5
votes
102k
views
The gas has a mass of 37.998 g/mol. using the calculated molecular mass, determine the density, in g/l, of this gas at stp, if 1.00 l of this gas effuses through an apparatus in 4.30 min
Florin Dobre
asked
Oct 5, 2024
by
Florin Dobre
8.6k
points
Chemistry
high-school
1
answer
0
votes
127k
views
Explain why? The ions of magnesium chloride stay together and Magnesium chloride has no overall charge-
Nohelia
asked
Oct 5, 2024
by
Nohelia
8.3k
points
Chemistry
high-school
1
answer
2
votes
214k
views
Suspended-type infrared heaters must be fixed in a position independent of ____________________.
Dan Davies Brackett
asked
Oct 5, 2024
by
Dan Davies Brackett
8.3k
points
Chemistry
high-school
1
answer
4
votes
176k
views
What is high performance liquid (HDLC) chromatography used for?
Nicasio
asked
Oct 5, 2024
by
Nicasio
7.9k
points
Chemistry
high-school
1
answer
2
votes
212k
views
How to convert 4.2 moles of Ca(NO3) to Grams.
Acenturyandabit
asked
Oct 5, 2024
by
Acenturyandabit
8.1k
points
Chemistry
high-school
1
answer
0
votes
69.4k
views
how much energy would it take to heat a section of the copper tubing that weighs about 630.0 g , from 14.80 ∘C to 27.32 ∘C ? Copper has a specific heat of 0.3850 J/(g⋅∘C)
Cwurtz
asked
Oct 5, 2024
by
Cwurtz
7.9k
points
Chemistry
high-school
1
answer
1
vote
86.2k
views
What mass of CaO, in grams, is formed when 10.0 grams of Ca reacts with 5.00 grams of O₂? a) 12.5 g b) 15.0 g c) 20.0 g d) 25.0 g
Ammadu
asked
Oct 5, 2024
by
Ammadu
8.5k
points
Chemistry
high-school
1
answer
0
votes
108k
views
Expository Essay - Water Consumption A) Provide information on the sources of water consumption. B) Discuss the importance of water conservation in daily life. C) Explain the impact of water consumption
Peter Burns
asked
Oct 5, 2024
by
Peter Burns
7.7k
points
Chemistry
high-school
1
answer
4
votes
99.3k
views
Oxidation is a chemical reaction that results in _____. loss of electrons gain of electrons stabilization of electron pairs synthesis of electrons
Weidi
asked
Oct 5, 2024
by
Weidi
8.7k
points
Chemistry
high-school
1
answer
0
votes
216k
views
Calcium has an electron configuration of 1s²2s²2p⁶3s²3p⁶4s². Which electron configuration has a larger atomic radius than calcium? A. 1s²2s²2p⁶3s²3p³ B. 1s²2s²2p⁶3s¹ C. 1s²2s²2p⁶3s²3p³3p⁵ D. 1s²2s²2p⁶3s
Wirnse
asked
Oct 5, 2024
by
Wirnse
8.8k
points
Chemistry
high-school
1
answer
3
votes
84.7k
views
What does the term "acceptor concentration" refer to in the context of semiconductor physics? a) Concentration of electrons b) Concentration of holes c) Concentration of protons d) Concentration of neutrons
Ganesh Pandhere
asked
Oct 5, 2024
by
Ganesh Pandhere
8.6k
points
Chemistry
high-school
1
answer
2
votes
81.8k
views
Based on the NIOSH handbook, carbon dioxide___.
Jruzafa
asked
Oct 5, 2024
by
Jruzafa
8.8k
points
Chemistry
high-school
1
answer
1
vote
49.7k
views
In an analysis, the complete combustion of 175 mg of geraniol produced 499 mg of CO₂ and 184 mg of H₂O. Give the empirical formula for geraniol, listing carbon and hydrogen at the beginning of the formula
Rohlik
asked
Oct 5, 2024
by
Rohlik
7.7k
points
Chemistry
high-school
1
answer
3
votes
182k
views
Your teacher ask you to find a recipe that includes two ingredients with a ratio of 1/2 | 1/8. Give an example of two ingredients in a recipe that would meet this requirement. A) Flour and Water B) Sugar
Avishay Bar
asked
Oct 5, 2024
by
Avishay Bar
7.4k
points
Chemistry
high-school
1
answer
1
vote
55.8k
views
What information is used to determine each bond type in compounds (whether it's ionic or covalent)? A) Electronegativity difference B) Atomic number C) Mass number D) Bond length
Ganbayar Gansukh
asked
Oct 5, 2024
by
Ganbayar Gansukh
8.9k
points
Chemistry
high-school
1
answer
3
votes
121k
views
1. I. CH₂=CH-CH₂ II, CH₂-C CH₂ III. CH₂ 1Ct₂ Which of the following orders is correct for the stability of these radicals? a) I > II > III c) I > III > II b) III >II>I d) III >1>II
Fnostro
asked
Oct 5, 2024
by
Fnostro
8.4k
points
Chemistry
high-school
1
answer
3
votes
7.4k
views
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