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Recent questions in Chemistry
≅ 38.0 mL of a 0.38M solution of sodium carbonate is mixed with 40.0mL of a 0.50 M calcium nitrate solution. Identify the precipitate formed and calculate the theoretical yield
Steven Elliott
asked
Dec 21, 2024
by
Steven Elliott
9.0k
points
Chemistry
high-school
1
answer
1
vote
175k
views
Which one of the following compounds behaves as an acid when dissolved in water? O BaO O C₅H₁₂ O HF O NaOH
Jmccartie
asked
Dec 21, 2024
by
Jmccartie
8.3k
points
Chemistry
high-school
1
answer
2
votes
226k
views
When fatty acids are liberated by lipase, the pH a. increases b. decreases c. stays the same
Ken Labso
asked
Dec 21, 2024
by
Ken Labso
8.8k
points
Chemistry
high-school
1
answer
2
votes
231k
views
Newton's first law states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force. Which of the following shows an example of this?
Ronnyfm
asked
Dec 21, 2024
by
Ronnyfm
7.7k
points
Chemistry
high-school
1
answer
0
votes
92.3k
views
*Why is water neutral?* a. it has no H+ b. it has no OH- c. it has the same amt of H+ and OH- d. A and B
NeitoFR
asked
Dec 21, 2024
by
NeitoFR
7.2k
points
Chemistry
high-school
2
answers
4
votes
171k
views
What is "ash"? a. It is a component of liquid fuels b. It is the organic matter left after complete combustion has occurred c. It is the part of fuel that can't be burned d. It is what is left at the bottom
Abdelazeem Kuratem
asked
Dec 21, 2024
by
Abdelazeem Kuratem
7.5k
points
Chemistry
high-school
1
answer
3
votes
147k
views
If 50 grams of water are saturated at 90°C with potassium nitrate and then cooled to 40°C, how much will precipitate?
Ofek Gila
asked
Dec 21, 2024
by
Ofek Gila
8.6k
points
Chemistry
high-school
1
answer
3
votes
2.0k
views
What is the average velocity of the air molecules in the room where you are right now? (a) Zero (b) Subsonic (c) Supersonic (d) Difficult to determine
Araz Ghazaryan
asked
Dec 21, 2024
by
Araz Ghazaryan
9.0k
points
Chemistry
high-school
1
answer
4
votes
146k
views
An unreactive, gaseous element used in advertising signs for the bright, reddish-orange glow it produces when an electric current is passed through it. a. Neon b. Helium c. Argon d. Krypton
Jagdeep Singh
asked
Dec 21, 2024
by
Jagdeep Singh
8.3k
points
Chemistry
high-school
1
answer
3
votes
7.0k
views
Draw a Lewis Dot Structure for each compound 1. PCI3 2. CBr4 3. SiCI4 4. H2S 5. Asi3 6. Sil4 a) 1. P:Cl:Cl:Cl 2. C:Br:Br:Br:Br 3. Si:Cl:Cl:Cl:Cl 4. H-S-H 5. As:I:I:I 6. Si:I:I:I b) 1. P•Cl3 2. C•Br4 3.
Afterlame
asked
Dec 21, 2024
by
Afterlame
8.2k
points
Chemistry
high-school
1
answer
4
votes
191k
views
Why multiply second step chemistry net equation? A) To balance the equation B) To determine the limiting reactant C) To find the reaction rate D) To calculate the heat of reaction
A Lombardo
asked
Dec 21, 2024
by
A Lombardo
8.3k
points
Chemistry
high-school
1
answer
0
votes
92.7k
views
Calculate the pH of the solution that results following addition of 11 mL of 1.0 MNaOH to 45 mL of 1.0 MNH₄Cl.
Daniel Hao
asked
Dec 21, 2024
by
Daniel Hao
8.6k
points
Chemistry
high-school
1
answer
3
votes
4.4k
views
What do the colors on the periodic table show? a) which element it is b) the metallic properties of the element c) the types of compounds the element can make d) whether the element is a solid, a liquid,
Oakymax
asked
Dec 21, 2024
by
Oakymax
7.7k
points
Chemistry
high-school
1
answer
4
votes
50.4k
views
What two organic compounds result when 3-heptyne is heated in basic aqueous KMNO₄? check all that apply. - CH₃CO₂ - CH₃CH₂CO₂ - CH₃CH₂CH₂CO₂ - CH₃CH₂CH₂CH₂CO₂
Berlinguyinca
asked
Dec 21, 2024
by
Berlinguyinca
7.6k
points
Chemistry
high-school
1
answer
1
vote
142k
views
______ is a method for combining two or more ingredients of differing strengths into an ointment or cream base. a. sifting b. trituration c. spatulation d. geometric dilution
Ichbinjoe
asked
Dec 21, 2024
by
Ichbinjoe
8.5k
points
Chemistry
high-school
1
answer
0
votes
229k
views
Use what you know about electronegativity to predict the relative strength of the bond between CaO (Calcium Oxide) and NiO (Nickel II Oxide). Which is stronger and how can you predict this?
PandaWood
asked
Dec 21, 2024
by
PandaWood
8.0k
points
Chemistry
college
1
answer
0
votes
144k
views
What are the similarities and differences in physical and chemical properties of chiral compounds? Drag the appropriate items to their respective bins. The ability to rotate the plane of a beam of polarized
Feifei
asked
Dec 21, 2024
by
Feifei
7.5k
points
Chemistry
high-school
1
answer
1
vote
228k
views
If a reaction is reversed in direction, how does the new value of the equilibrium constant compare to the original value?
Octern
asked
Dec 21, 2024
by
Octern
8.4k
points
Chemistry
high-school
1
answer
1
vote
98.4k
views
Using the NAS idea, how many electrons are needed for the coumpoun HOCL? Hint: remember H only need 2 electrons, rather than 8 a. 32 b. 18 c. 24 d. 14
Alexander Bilchuk
asked
Dec 21, 2024
by
Alexander Bilchuk
7.3k
points
Chemistry
high-school
2
answers
2
votes
43.7k
views
What happens to volume in isothermal expansion?
Altia
asked
Dec 21, 2024
by
Altia
7.7k
points
Chemistry
high-school
1
answer
3
votes
77.2k
views
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