menu
Qammunity.org
Recent questions in Chemistry
Login
Register
My account
Edit my Profile
Private messages
My favorites
Recent questions in Chemistry
Ask a Question
Questions
Unanswered
Tags
Ask a Question
Recent questions in Chemistry
Create a model of carbon dioxide (CO2). a) Use the periodic table to help you determine the relative sizes of the atoms in carbon dioxide. b) Determine which size of foam ball will represent carbon, and
Petr Nalevka
asked
Dec 20, 2024
by
Petr Nalevka
8.0k
points
Chemistry
high-school
1
answer
3
votes
132k
views
Which of the following are the basic building blocks of all matter? Select the correct response: atoms protons molecules electrons
Palmin
asked
Dec 20, 2024
by
Palmin
8.3k
points
Chemistry
college
1
answer
0
votes
222k
views
Find the percent compositions of all of the elements in the following compounds: mg(no3)2
Shanison
asked
Dec 20, 2024
by
Shanison
8.0k
points
Chemistry
high-school
1
answer
0
votes
35.9k
views
I don’t know what to do
Martin Dimitrov
asked
Dec 20, 2024
by
Martin Dimitrov
7.9k
points
Chemistry
high-school
1
answer
5
votes
178k
views
Vanadium crystallizes with a body-centered cubic unit cell. The radius of a vanadium atom is 134 pm. Calculate the density of solid crystalline vanadium in grams per cubic centimeter.
Hamed Mayahian
asked
Dec 20, 2024
by
Hamed Mayahian
8.5k
points
Chemistry
high-school
1
answer
2
votes
35.0k
views
Which compound is used for disinfection? isopropyl alcohol phenol CFCs ethanol propanone
Badrul
asked
Dec 20, 2024
by
Badrul
8.0k
points
Chemistry
high-school
1
answer
2
votes
34.9k
views
What type of ZOE (zin-oxide eugenol) is used for permanent cementation? A) Type I B) Type II C) Type III D) Type IV
Wwilczyn
asked
Dec 20, 2024
by
Wwilczyn
8.3k
points
Chemistry
high-school
1
answer
2
votes
229k
views
Effects of Metal Surface Condition and Composition on General Corrosion a) The condition and composition of the metal surface have no effect on general corrosion. b) A smooth and pure metal surface is
Coffee Maker
asked
Dec 20, 2024
by
Coffee Maker
8.5k
points
Chemistry
high-school
1
answer
0
votes
223k
views
Which of the following is NOT a common type of flammable liquid storage tank you would typically find at a refinery or tank farm. 1. Atmospheric storage tank 2. Fixed-roof storage tank 3. Floating-roof
Felix Schwarz
asked
Dec 20, 2024
by
Felix Schwarz
7.8k
points
Chemistry
high-school
1
answer
2
votes
68.1k
views
Fred mixes a solution using two types of solutions: 0.60 liters containing 10% alcohol and 0.40 liters containing 35% alcohol.
Daniel Rinser
asked
Dec 20, 2024
by
Daniel Rinser
8.3k
points
Chemistry
high-school
2
answers
3
votes
103k
views
A bacterial lactose transporter,which is highly specific for lactose,contains a Cys residue that is essential to its transport activity.Covalent reaction of N-cthylmaleimide (NEMwith this Cys residue irreversibly
Reizals
asked
Dec 20, 2024
by
Reizals
8.8k
points
Chemistry
high-school
2
answers
3
votes
132k
views
What volume of 0.550 M HCl can be prepared from 35.0 mL of 11.7 M HCl? Responses 1.13 mL 1.13 mL 18.4 mL 18.4 mL
Shivam Pandey
asked
Dec 20, 2024
by
Shivam Pandey
7.7k
points
Chemistry
college
1
answer
1
vote
79.1k
views
Calculate the volume of carbon (IV) oxide evolved at s.t.p when 21g of sodium hydrogen trioxocarbonate (IV) is heated. a) 11.2 dm³ b) 22.4 dm³ c) 33.6 dm³ d) 44.8 dm³
GavinWoods
asked
Dec 20, 2024
by
GavinWoods
8.3k
points
Chemistry
high-school
1
answer
0
votes
92.1k
views
D. When the astronauts get this water in space they perform electrolysis and only are able to experimentally make 43,200g of O₂. Using this as your experimental (actual) yield and your answer from part
AllOutOfSalt
asked
Dec 20, 2024
by
AllOutOfSalt
8.3k
points
Chemistry
high-school
1
answer
5
votes
11.6k
views
97 percent of the world's water supply is difficult, if not impossible, to obtain or to use because it is in the oceans or in the form of glaciers and ice caps. Scientists are exploring methods of conserving
Shiya
asked
Dec 20, 2024
by
Shiya
7.8k
points
Chemistry
college
1
answer
2
votes
20.1k
views
The oxidation number of alkali metals in a compound is always 1+ A true B false
Thejoshwolfe
asked
Dec 20, 2024
by
Thejoshwolfe
8.7k
points
Chemistry
high-school
1
answer
5
votes
35.1k
views
If you are leading a team to clean an oil spill in rough waters, which of the following methods would be most effective to clean the oil? Install booms made from, or with, sorbent materials around the
FUJI Goro
asked
Dec 20, 2024
by
FUJI Goro
8.6k
points
Chemistry
middle-school
2
answers
3
votes
226k
views
Select the atoms that are likely to lose electrons to form cations: A. Fluorine (F) B. Magnesium (Mg) C. Sodium (Na) D. Sulfur (S)
Gulbrandr
asked
Dec 20, 2024
by
Gulbrandr
8.1k
points
Chemistry
high-school
1
answer
4
votes
155k
views
Explain one assumption made by treating a gas as ideal. What would be the consequences if this assumption turns out to be true?
Icem
asked
Dec 20, 2024
by
Icem
7.7k
points
Chemistry
high-school
1
answer
3
votes
19.3k
views
A solution containing 10.0 ml of the strong acid hbr has a ph o 2.62. the weak acid is titrated with 0.124 m naoh in the presence of a ph indicator. the indicator changes coor (approximating the quivalence
Frank Vel
asked
Dec 20, 2024
by
Frank Vel
7.7k
points
Chemistry
high-school
1
answer
4
votes
206k
views
Page:
« prev
1
...
96
97
98
99
100
101
102
...
1000
...
next »
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Other Questions
What is .725 as a fraction
Compare and contrast an electric generator and a battery??
What goal of the constitution was also a goal of the Magna Carta?
Search Qammunity.org