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Recent questions in Chemistry
Which of the following hormones is responsible for the thickening of the endometrium? A. Testosterone B. Oxytocin C. Estrogen D. Luteinizing hormone E. Follicle stimulating hormone
Hardik Mishra
asked
Dec 14, 2024
by
Hardik Mishra
8.1k
points
Chemistry
high-school
1
answer
3
votes
118k
views
QUESTION: Write an equation for the following reaction, including AH value. In a process of making urea, liquid gas, NH3, reacts rapidly with gaseous carbon dioxide, (CO2), to produce solid ammonium carbamate,
JSNoob
asked
Dec 14, 2024
by
JSNoob
7.7k
points
Chemistry
high-school
1
answer
1
vote
8.0k
views
Calculate the number of Frenkel defects per cubic meter in silver chloride at 350°C. The energy for defect formation is 1.1 eV, whereas the density for AgCl is 5.50 g/cm' at 350°C.
Jerrybibo
asked
Dec 14, 2024
by
Jerrybibo
8.6k
points
Chemistry
high-school
1
answer
0
votes
194k
views
What effect does the cation of an ionic compound have on the appearance of the solution? A. The cation affects the intensity of the color more than the color of the solution. B. The cation affects the
CriketerOnSO
asked
Dec 14, 2024
by
CriketerOnSO
7.7k
points
Chemistry
high-school
1
answer
1
vote
121k
views
Without doing any calculations, determine which sample contains the most atoms. a. one gram of lead b. one gram of carbon c. one gram of cobalt
Marc Durdin
asked
Dec 14, 2024
by
Marc Durdin
7.2k
points
Chemistry
high-school
1
answer
3
votes
42.6k
views
Help me pleease! I don't understand! =[
Rodney Lambert
asked
Dec 14, 2024
by
Rodney Lambert
9.1k
points
Chemistry
high-school
1
answer
4
votes
160k
views
A) Lead will form a cation with a charge of 4+. How many protons are in 1 ion of 207Pb4+? B) Lead will form a cation with a charge of 4+. How many electrons are in 1 ion of 207Pb4+? C) Lead will form a
Felipe Ardila
asked
Dec 14, 2024
by
Felipe Ardila
8.9k
points
Chemistry
high-school
1
answer
5
votes
61.3k
views
The transition between the solid state and the liquid state of a pure substance is characterized by the heat of? A) Sublimation B) Vaporization C) Fusion D) Condensation
Andyhasit
asked
Dec 14, 2024
by
Andyhasit
8.4k
points
Chemistry
high-school
1
answer
0
votes
1.8k
views
Match the thermodynamic quantities with the physical meaning. G < 0 S > 0 H < 0 The reaction is sprontaneous. The system becomes more diorderly. The reaction is exothermic. The reaction is sprontaneous. The system becomes more diorderly. The reaction is exothermic. The reaction is sprontaneous. The system becomes more diorderly. The reaction is exothermic.
Xiiryo
asked
Dec 14, 2024
by
Xiiryo
8.3k
points
Chemistry
high-school
1
answer
3
votes
183k
views
Which reactions below are oxidation-reduction reactions? Identify the species and their roles in each reaction (oxidized, oxidizing agent, etc.).
Jonguo
asked
Dec 14, 2024
by
Jonguo
7.6k
points
Chemistry
high-school
1
answer
5
votes
128k
views
Give the total number of oxygen atoms indicated by 3H₂SO₄?
Tiblu
asked
Dec 14, 2024
by
Tiblu
7.9k
points
Chemistry
high-school
1
answer
3
votes
97.8k
views
But F2 is nonpolar as the bond is nonpolar. WHY? Both atoms in the diatomic molecule are the __
Zeeshan Ahmed
asked
Dec 14, 2024
by
Zeeshan Ahmed
8.5k
points
Chemistry
high-school
1
answer
2
votes
167k
views
The half life of phosphorus-32 is 14.29 days. if a 2.4 mg sample of p-32 is left to decay. how much is left after 3 half lives?
Kyle Hughes
asked
Dec 14, 2024
by
Kyle Hughes
8.5k
points
Chemistry
high-school
1
answer
0
votes
201k
views
Ntravenous potassium chloride is often given to patients to prevent or treat severe hypokalemia, a condition characterized by low blood potassium levels. a doctor orders that a patient must be delivered
Bigwebguy
asked
Dec 14, 2024
by
Bigwebguy
7.7k
points
Chemistry
high-school
1
answer
2
votes
43.6k
views
Polymorphs differing by the stacking sequence of identical sheets. A. Lattice polymorphism B. Sheet polymorphism C. Sequence polymorphism D. Layer polymorphism
Nijin Narayanan
asked
Dec 14, 2024
by
Nijin Narayanan
9.4k
points
Chemistry
high-school
1
answer
3
votes
17.0k
views
Morse code was invented and first used before the invention of the telephone. Explain how using electronic pulses to send messages in Morse code would have been an advantage over using your voice.
Panepeter
asked
Dec 14, 2024
by
Panepeter
8.3k
points
Chemistry
middle-school
2
answers
0
votes
8.7k
views
HCl is a ________. 1) strong acid 2) weak acid 3) strong base 4) weak base 5) non electrolyte
Iskorum
asked
Dec 14, 2024
by
Iskorum
8.1k
points
Chemistry
high-school
1
answer
3
votes
24.0k
views
An athlete injures her knee and requests a cold pack. Her coach finds a cold pack at room temperature in the first aid kit. To activate the cold pack, the coach squeezes it several times. After 30 seconds,
Stanlekub
asked
Dec 13, 2024
by
Stanlekub
8.6k
points
Chemistry
high-school
2
answers
1
vote
106k
views
how many moles of sucrose (table sugar c12h22o11, molar mass 342.3g/mol) are contained in a 5.0lb bag of sugar
DoubleJ
asked
Dec 13, 2024
by
DoubleJ
7.2k
points
Chemistry
high-school
1
answer
0
votes
8.0k
views
80s hairsprays like Aquanet used to contain CFCs to help propel the hairspray out of the can as an aerosol. A can of hairspray contains 4.0floz of CF₂Cl₂ at 3.0 atm and 25 ∘C. How many millimoles of CF₂Cl₂
Viraj Patel
asked
Dec 13, 2024
by
Viraj Patel
8.4k
points
Chemistry
high-school
1
answer
3
votes
176k
views
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