menu
QAmmunity.org
Recent questions in Chemistry
Login
Register
My account
Edit my Profile
Private messages
My favorites
Register
Recent questions in Chemistry
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Recent questions in Chemistry
A student places six plants of equal sizes into six different, equal-sized pots containing the same amounts of potting soil and labels the pots U, V, W, X, Y, and Z. Using two pots in each of the three
Akronix
asked
Jul 4, 2023
by
Akronix
3.8k
points
Chemistry
middle-school
1
answer
6
votes
50.9k
views
9. What is the balanced formula equation for the reaction shown in the figure? a. H2 + Br2 ---> 2HBr b. 2H + 2Br ---> 2HBr c. H2 + B2r ---> H2Br2 d. H2 + Br2 ---> HBr + HBr 10. Identify the product(s)
Alexey Shiklomanov
asked
Jul 4, 2023
by
Alexey Shiklomanov
3.6k
points
Chemistry
high-school
1
answer
3
votes
85.8k
views
6. How many molecules of ammonia are present in 34 g of ammonia (Formula = NH3)?
Echox
asked
Jul 4, 2023
by
Echox
3.8k
points
Chemistry
college
1
answer
10
votes
36.7k
views
A compound is 52.0% zinc 9.6% carbon and 38.4% oxygen. Calculate the empirical formula of the compound.
Mgol
asked
Jul 4, 2023
by
Mgol
4.0k
points
Chemistry
high-school
1
answer
2
votes
59.5k
views
What occurs in an exothermic reaction? A. A smell is produced B. There is an increase in temperature. C. Fizzing happens. D. There is a color change. Reset Selection
Joum
asked
Jul 4, 2023
by
Joum
4.1k
points
Chemistry
high-school
2
answers
3
votes
182k
views
What is the molarity of a solution when 2. 75 g of nacl is dissolved in 1100 ml of solution.
Futurecat
asked
Jul 4, 2023
by
Futurecat
3.9k
points
Chemistry
high-school
1
answer
12
votes
77.0k
views
Which invention was inspired by a burr? O A. GPS O B. Velcro O C. Stun gun O D. DNA analysis SUBMIT
Mpac
asked
Jul 4, 2023
by
Mpac
4.2k
points
Chemistry
college
2
answers
17
votes
106k
views
Electrolytic capacitors differ from many other cpapacitors in construction in that they are?
John Chadwick
asked
Jul 4, 2023
by
John Chadwick
4.2k
points
Chemistry
high-school
1
answer
4
votes
104k
views
If the volume is 15 and the mass of water is 14.9 what is the density
Berlinguyinca
asked
Jul 4, 2023
by
Berlinguyinca
3.6k
points
Chemistry
college
1
answer
0
votes
68.1k
views
Use the pictures sent Please help
Braden
asked
Jul 4, 2023
by
Braden
4.1k
points
Chemistry
high-school
1
answer
2
votes
219k
views
Two star systems are part of a ________________ system formation.
SHANK
asked
Jul 4, 2023
by
SHANK
3.9k
points
Chemistry
college
1
answer
0
votes
99.6k
views
How many moles of hydrochloric acid are needed to react with 0.64 moles of potassium permanganate?
Merna Mustafa
asked
Jul 4, 2023
by
Merna Mustafa
4.9k
points
Chemistry
high-school
1
answer
15
votes
194k
views
How many moles of CH3CH2Br are contained in 422 mL of 0.0950 M CH3CH2Br solution?
David Steppenbeck
asked
Jul 4, 2023
by
David Steppenbeck
4.0k
points
Chemistry
college
2
answers
15
votes
37.8k
views
what is the mathematical relationship between the independent and dependent variables? Justify your answer.
Steve Heim
asked
Jul 4, 2023
by
Steve Heim
4.0k
points
Chemistry
college
1
answer
22
votes
62.9k
views
1) (a) Write the dot structure for grain alcohol, C₂H,O. This molecule has hydrogen bonding. Molecules that are hydrogen bonding contain an O-H, N-H or F-H bond. (b) Construct the molecular model for this
Simon Ingeson
asked
Jul 4, 2023
by
Simon Ingeson
3.6k
points
Chemistry
college
1
answer
3
votes
138k
views
A dark purple liquid is diluted by adding water. The diluted liquid becomes a pale purple colour. Explain the process that causes this change. Refer to particles in your answer
Toniedzwiedz
asked
Jul 4, 2023
by
Toniedzwiedz
4.3k
points
Chemistry
high-school
1
answer
4
votes
124k
views
Each substance to the right of the arrow in a chemical equation is a.
Paul Siegel
asked
Jul 4, 2023
by
Paul Siegel
4.0k
points
Chemistry
high-school
1
answer
3
votes
221k
views
When an acidic molecule is added to water it will ____________ the pH of the solution because it increases the number of free __________ ions.
Zanzoken
asked
Jul 4, 2023
by
Zanzoken
3.9k
points
Chemistry
high-school
1
answer
10
votes
30.0k
views
A student dissolves 73 g of sodium nitrate, NaNO3, in 100 mL of water and observes a clear, colorless solution. The student begins to add more sodium nitrate to the solution and it instantly becomes a
Swarup Donepudi
asked
Jul 4, 2023
by
Swarup Donepudi
4.2k
points
Chemistry
high-school
1
answer
15
votes
191k
views
Please answer questions 7-13 for alpha and beta decay. I need help!!!!!!!
Zahra Bayat
asked
Jul 4, 2023
by
Zahra Bayat
4.0k
points
Chemistry
high-school
1
answer
8
votes
210k
views
Page:
« prev
1
...
991
992
993
994
995
996
997
...
1000
...
next »
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
4.3m
questions
5.5m
answers
Other Questions
Which sentence INCORRECTLY uses a commonly confused word? A) I must advise you to exercise more regularly. B) Mr. Cannon is the new principle of Sandburg High School. C) Even though it was raining, Helen
Gregor Mendel studied pea plants to determine the patterns of inheritance. What is not a reason Mendel used pea plants in his experiments? Check all that apply.
A study was completed in Florida. In southern Florida, the study involved 3,000 patients; 54% of them experienced flulike symptoms during the same month. The study had a margin of error of 1.8%. What does
How can expansionary expenditure-based fiscal policy lead to crowding out in the economy? A. Expenditure-based fiscal policy increases the national debt, inducing forward-looking households and firms
Solve for x in the equation 3 x squared minus 18 x + 5 = 47. (I need this to be an answer like X=3+\_ square root 23)
Search QAmmunity.org