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Recent questions in Chemistry
Ti(s) o2(g) → tio2(s) when 1.310 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25.00°c to 68.10°c. in a separate experiment, the heat capacity of the
Darlinton
asked
Oct 10, 2024
by
Darlinton
8.1k
points
Chemistry
high-school
1
answer
2
votes
166k
views
To what volume should you dilute 50.5 ml of a 5.05 M KI solution so that 25.5 ml of the diluted solution contains 3.30 g of KI? A) 13.4 ml B) 50.5 ml C) 75.7 ml D) 101 ml
Romeo Sheshi
asked
Oct 10, 2024
by
Romeo Sheshi
7.9k
points
Chemistry
high-school
1
answer
2
votes
112k
views
What is the mass percent of sodium carbonate, %(m/m) Na₂CO₃, in a solution prepared by dissolving 4.28 grams of sodium carbonate in 35.11 grams of water.
Jim Andreas
asked
Oct 10, 2024
by
Jim Andreas
8.0k
points
Chemistry
high-school
1
answer
5
votes
167k
views
Choose the name for the chemical formula HCl (aq). A) hydrochloric acid B) hydrogen chloride C) hydrogen monochloride D) hydrogen monoclorate
Gweg
asked
Oct 10, 2024
by
Gweg
7.2k
points
Chemistry
high-school
1
answer
2
votes
42.1k
views
What is the most stable group in the periodic table?
Ssmith
asked
Oct 10, 2024
by
Ssmith
7.2k
points
Chemistry
college
1
answer
3
votes
75.3k
views
How many ounces would it take for a drink containing 40% alcohol to equal a Standard Drink? a) 1 oz b) 1.5 oz c) 2 oz d) 2.5 oz
Chandoo
asked
Oct 10, 2024
by
Chandoo
8.0k
points
Chemistry
high-school
1
answer
4
votes
179k
views
What is the mol fraction of ethanol when 0.504 mol of ethanol are mixed with 4.06 mol of water?
Tomasz Niedabylski
asked
Oct 10, 2024
by
Tomasz Niedabylski
7.7k
points
Chemistry
high-school
1
answer
0
votes
120k
views
Consider the thermodynamic properties of chemical reactions. Even though enzymes do not affect the overall energy of the reactants or the products (i.e., the thermodynamics), they alter the speed of the
Leet
asked
Oct 10, 2024
by
Leet
7.8k
points
Chemistry
high-school
1
answer
0
votes
225k
views
To find the percent by mass of a compound if you are given the formula, divide the molar mass of that element in one mole of the compound by the total molar mass of the compound. Select one: True False
Betehess
asked
Oct 10, 2024
by
Betehess
8.0k
points
Chemistry
high-school
1
answer
4
votes
17.9k
views
A student designs a gravity experiment. She will time how long it takes different objects to fall from her school’s roof to the ground. She will use three objects: a 2-foot-long board, a toy car, and a
Daniel Hursan
asked
Oct 10, 2024
by
Daniel Hursan
8.0k
points
Chemistry
high-school
1
answer
5
votes
64.1k
views
write indvidual balanced equations for the acid/base neutralization reaction f each of the antacid active ingredients with hcl. so if the solid antacid has three active ingredients, write three balanced
Rjc
asked
Oct 10, 2024
by
Rjc
8.0k
points
Chemistry
high-school
1
answer
5
votes
212k
views
What is the classification of Morphine (Morphine sulfate)?
NeutronStar
asked
Oct 10, 2024
by
NeutronStar
7.4k
points
Chemistry
high-school
1
answer
0
votes
49.0k
views
Lanthanum-140 is a radioactive isotope. A nucleus of lanthanum-140 emits gamma radiation. What happens to the mass number and the charge of the nucleus when gamma radiation is emitted? a. mass number stays
Lars Juel Jensen
asked
Oct 10, 2024
by
Lars Juel Jensen
8.2k
points
Chemistry
high-school
1
answer
4
votes
131k
views
1/4 of a sample of thorium-232 remains. How long has the sample been decaying? A) 30 years B) 20 years C) 10 years D) 40 years
Tommy Saechao
asked
Oct 10, 2024
by
Tommy Saechao
8.0k
points
Chemistry
high-school
1
answer
5
votes
154k
views
Ten specimens of a certain type of powder were analyzed for sulfuric trioxide content. Given the data, identify the best distribution for sulfuric trioxide content. a) Normal distribution b) Uniform distribution
Nicholas Pufal
asked
Oct 10, 2024
by
Nicholas Pufal
7.7k
points
Chemistry
high-school
1
answer
5
votes
101k
views
What volume does 4.53 moles of hydrogen at 1.78 atm and 301 K occupy? Volume (L)
Quent
asked
Oct 10, 2024
by
Quent
7.9k
points
Chemistry
high-school
1
answer
4
votes
41.3k
views
80.0g of ar and 142g of oxygen gas are in 30.0l gas tank with a temperature of degree celsius. what is the total pressure of the gas mixture?
Hoyin
asked
Oct 10, 2024
by
Hoyin
8.1k
points
Chemistry
high-school
1
answer
5
votes
147k
views
Write a chemical equation of the result of an electrolytic cell which used the following: Salt water as electrolyte Graphite as anode and cathode A 9V battery Insulated copper wire A. 2NaCl + 2H2O -> 2NaOH
Beebul
asked
Oct 10, 2024
by
Beebul
8.2k
points
Chemistry
high-school
1
answer
0
votes
227k
views
Gold(III) forms an ionic compound with fluoride. How many atoms of each ion will bond to form an ionic compound? a. 1 gold(III), 1 fluoride b. 1 gold(III), 3 fluoride c. 3 gold(III), 1 fluoride d. 2 gold(III),
Yeji
asked
Oct 10, 2024
by
Yeji
8.4k
points
Chemistry
high-school
1
answer
2
votes
33.6k
views
For #12 - #14, write the balanced chemical equation and identify each by type of reaction. 12. copper + chlorine → copper(II) chloride 13. calcium chlorate → calcium chloride + oxygen 14. lithium + water
Ibrahimgb
asked
Oct 10, 2024
by
Ibrahimgb
8.2k
points
Chemistry
high-school
1
answer
2
votes
145k
views
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