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Recent questions in Chemistry
Starting at a solution that is 50% A and 50% B (at X), if we were to heat this solution to boiling point T1, the vapour that would be in equilibrium would have a composition of ______, which practicaly
Matt Simerson
asked
Oct 9, 2024
by
Matt Simerson
8.2k
points
Chemistry
high-school
1
answer
4
votes
177k
views
How many moles of carbon monoxide would be needed to react with 100 g Fe₂O3?
Michael Holman
asked
Oct 9, 2024
by
Michael Holman
7.9k
points
Chemistry
high-school
1
answer
0
votes
206k
views
What is the pH of a substance if it has a [H]=0.68?
Mycoola
asked
Oct 9, 2024
by
Mycoola
8.9k
points
Chemistry
college
1
answer
1
vote
21.4k
views
CH4 (g) + H2O(g) → CO(g) + 3H2 (g) What is the volume of steam, H2O(g), needed to completely react with 53.50L of methane gas at a constant pressure and temperature? What is the volume of carbon monoxide,
Jason Jones
asked
Oct 9, 2024
by
Jason Jones
7.4k
points
Chemistry
high-school
2
answers
1
vote
209k
views
Classify the following as Physical or Chemical change. - Burning of Phosphorus - Baking of Potato
Joris Van Regemortel
asked
Oct 9, 2024
by
Joris Van Regemortel
8.6k
points
Chemistry
high-school
1
answer
4
votes
9.0k
views
Key Questions and Terms Notes A _________ is a unit of energy that describes how much energy the body can get from eating or drinking certain foods. What are nutrients? How do each of these nutrients impact
Khalilos
asked
Oct 9, 2024
by
Khalilos
8.4k
points
Chemistry
middle-school
2
answers
0
votes
104k
views
You aren't sure whether or not your ph meter needs to be calibrated, so you put it in a solution that you know has a ph of 7. You take four separate readings, which are reported as 5.5, 8.6, 7.2, and 9.
Fritz H
asked
Oct 9, 2024
by
Fritz H
8.1k
points
Chemistry
high-school
1
answer
0
votes
225k
views
An ionic compound will dissolve in a nonpolar solvent?
CTT
asked
Oct 9, 2024
by
CTT
8.4k
points
Chemistry
high-school
1
answer
4
votes
212k
views
Convert 1.50 atm to mmHg
Dan Waterbly
asked
Oct 9, 2024
by
Dan Waterbly
8.1k
points
Chemistry
high-school
1
answer
3
votes
140k
views
An acid HX is 27% dissociated in water. If the equilibrium concentration of HX is 0.25 M, calculate the Kₐ value for HX.
Zahra Talebi
asked
Oct 9, 2024
by
Zahra Talebi
7.5k
points
Chemistry
high-school
1
answer
3
votes
224k
views
a white amorphous powder emits a greenish yellow gas having a smell of chlorine. it isused to remove yellowness of white clothes in laundries. identify the powder. write the chemical equation involved
Bagbyte
asked
Oct 9, 2024
by
Bagbyte
7.4k
points
Chemistry
high-school
1
answer
2
votes
223k
views
X-ray crystalography has been very important in helping determine: a. the primary structure of proteins b. the structure of amphipathic phospholipids c. the nature of the hydrogen bond d. the structure
JasonStoltz
asked
Oct 9, 2024
by
JasonStoltz
8.7k
points
Chemistry
high-school
1
answer
3
votes
230k
views
If the liquid volumes for different sample volumes are weighed in a 250 ml beaker and the following data is collected: Liquid Volume (ml) : Beaker and Liquid Mass (g) 10.0 : 293.097 20.0 : 305.775 30.0
Ali Hakan Kurt
asked
Oct 9, 2024
by
Ali Hakan Kurt
8.7k
points
Chemistry
high-school
1
answer
4
votes
89.7k
views
Which state of matter does this image represent? O Solid O Liquid O Gas O Plasma
Euvs
asked
Oct 9, 2024
by
Euvs
8.4k
points
Chemistry
high-school
2
answers
2
votes
94.2k
views
Two solids a (melting point is 90 degree celsius) and b (melting point is 190 degree celsius) is provided. 1. Which solid has lesser force of attraction? 2. Which solid will absorb higher amount of latent
Tom Viner
asked
Oct 9, 2024
by
Tom Viner
8.2k
points
Chemistry
high-school
1
answer
5
votes
24.2k
views
When more than one ion species (i.e., Na+ and K+) is present on both sides of the membrane, the chemical driving force acting on Na+ will include A) all ions present. B) the most concentrated ion only.
Abhishek Parikh
asked
Oct 9, 2024
by
Abhishek Parikh
8.2k
points
Chemistry
high-school
1
answer
1
vote
227k
views
Simplest types of matter with certain chemical properties. 98 naturally occurring A) Elements B) Compounds C) Molecules D) Atoms
Hariharan
asked
Oct 9, 2024
by
Hariharan
8.7k
points
Chemistry
high-school
1
answer
5
votes
42.2k
views
How many moles of h₂o can be formed from 3.02 × 10²³ molecules of nh₃ from the following equation?
Abuybuy
asked
Oct 9, 2024
by
Abuybuy
8.4k
points
Chemistry
high-school
1
answer
3
votes
99.4k
views
Because of solute-solvent intermolecular attraction, _______ concentrations of non-volatile solutes make it harder for the solvent to escape to the vapor phase. a) Lower b) Higher
Qouify
asked
Oct 9, 2024
by
Qouify
8.2k
points
Chemistry
high-school
1
answer
4
votes
45.3k
views
They come to a hill going downward, and the girl joins the boy in the wagon, which continues to move at 2.0 m/s at first. Calculate the combined kinetic energy of the two children and the wagon.
Kyle Venn
asked
Oct 9, 2024
by
Kyle Venn
7.8k
points
Chemistry
high-school
1
answer
0
votes
155k
views
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