Recent questions in Chemistry

Question

Give the common name for the following ether.

Gabe Hollombe asked Oct 9, 2024

by Gabe Hollombe

7.3k points

1 answer

3 votes

34.0k views

Which statement correctly describes why a compound is a pure substance? O A compound is not a pure substance because each of its molecules is made up of the ate different elements. O A compound is a pure

Paolo Del Mundo asked Oct 9, 2024

by Paolo Del Mundo

7.2k points

1 answer

3 votes

46.0k views

What do you believe the relationship between mass and volume is? Describe how significantly you think a change in a substance’s mass will affect its volume.

Florian Friedrich asked Oct 9, 2024

by Florian Friedrich

8.9k points

1 answer

4 votes

188k views

Given that 0.1238 g of KIO₃ produces I2, and 41.27 mL of Na₂S₂O₃ is required, what is the concentration of Na₂S₂O₃? a) 0.1238 mol/L b) 0.0028 mol/L c) 0.0048 mol/L d) 0.04127 mol/L

Polpetti asked Oct 9, 2024

by Polpetti

8.2k points

1 answer

0 votes

161k views

Some chemists are interested in studying the rates of chemical reactions based on structures of the various substances involved and trying to figure out the step-by-step mechanism of how the reactions

Fallso asked Oct 9, 2024

by Fallso

8.1k points

1 answer

2 votes

192k views

___Refers to the amount of moisture contained in a quantity of air compared to the maximum amount of moisture in the air that could hold at the same temperature. A) Absolute humidity. B) Specific humidity.

Boris Kuzevanov asked Oct 9, 2024

by Boris Kuzevanov

7.9k points

1 answer

5 votes

179k views

If 0.023 grams of additional HCl is added to 0.500 L of a 0.100 M HCl solution, what will happen to the molarity? a) It will increase b) It will decrease c) It will not change d) None of the above

Ken Schumack asked Oct 9, 2024

by Ken Schumack

8.7k points

1 answer

0 votes

216k views

How many grams of AlCl3 are contained in 7.50 x 10² mL of a 2.5 M solution?

Cfh asked Oct 9, 2024

by Cfh

8.3k points

1 answer

1 vote

180k views

Factors affecting rate of osmosis: thickness of exchange surface

Cerealspiller asked Oct 9, 2024

by Cerealspiller

8.3k points

1 answer

5 votes

119k views

A neutral group of atoms held together by covalent bond is a...? - chemical formula - molecule - polyatomic ion - molecular formula

AnoE asked Oct 9, 2024

by AnoE

8.4k points

1 answer

2 votes

50.2k views

Of the five elements Sn, Si, Sb, O, Te, which has the most endothermic reaction? (E represents an atom.) What name is given to the energy for the reaction? E(g)⟶E+(g)+e− a) Sb; Ionization energy b) Sn;

Andrea Bevilacqua asked Oct 9, 2024

by Andrea Bevilacqua

8.0k points

1 answer

5 votes

208k views

What is the name of a cis unsaturated fatty acid that is a major trans fatty acid that comprises up to 80% of olive oil?

Fsasvari asked Oct 9, 2024

by Fsasvari

9.2k points

1 answer

1 vote

135k views

How much calcium oxide is produced when 50 grams of calcium carbonate is heated? A) 20 grams B) 28 grams C) 25 grams D) 10 grams

Cbron asked Oct 9, 2024

by Cbron

8.1k points

1 answer

2 votes

18.1k views

How many protons, neutrons, and electrons are there in one atom of hafnium-178? A. 72 protons, 106 neutrons, 72 electrons B. 89 protons, 178 neutrons, 89 electrons C. 108 protons, 70 neutrons, 70 electrons

Hzdbyte asked Oct 9, 2024

by Hzdbyte

7.1k points

1 answer

2 votes

9.2k views

the reaction between methanol and oxygen gas produces water vapor and carbon dioxide. 2ch3oh(l) 3o2(g)⟶4h2o(g) 2co2(g) three sealed flasks contain different amounts of methanol and oxygen.

Sjoerd Van Den Berg asked Oct 9, 2024

by Sjoerd Van Den Berg

8.6k points

2 answers

1 vote

135k views

5.039 e-3 M solution of calcium hydroxide

Rafael Soufraz asked Oct 9, 2024

by Rafael Soufraz

8.3k points

1 answer

2 votes

231k views

What is the number of ions of each in manganese (II) iodide?

Rockbala asked Oct 9, 2024

by Rockbala

8.4k points

1 answer

5 votes

185k views

Supply a formula to match the name potassium permanganate Express your answer as a chemical formula. a) K₂MnO₄ b) KMnO₄ c) K(MnO₄)₂ d) K₃MnO₄

Rohit Makwana asked Oct 9, 2024

by Rohit Makwana

8.9k points

1 answer

5 votes

69.9k views

In a calorimetry experiment, an unknown metal with a mass of 24.2 g that has been heated to a temperature of 90.1 °C is placed in a coffee cup calorimeter containing 74.0 g of water initially at a temperature

Raghavan Vmvs asked Oct 9, 2024

by Raghavan Vmvs

7.2k points

1 answer

0 votes

208k views

If the flask contained 0.75 moles of hydrochloric acid, and the box contained 454 g of sodium bicarbonate, was it safe for Kacy to clean up the mess?

Mrkhrts asked Oct 9, 2024

by Mrkhrts

8.5k points

1 answer

3 votes

133k views

Page:

« prev
1
...
875
876
877
878
879
880
881
...
1000
...
next »

Ask a Question

Recent questions in Chemistry

Other Questions