Recent questions in Chemistry

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Many useful substances are obtained from petroleum and natural gas. Select the correct name given to these substances. A. Petromolecules B. Petrocompounds C. Petrochemicals D. Petroproducts

DAB asked Oct 14, 2024

by DAB

8.8k points

1 answer

5 votes

208k views

Calculate the [H₃O⁺] of a milk of magnesia solution that contains [OH⁻] = 4.47 × 10⁻⁵ M.

Elizabeth Buckwalter asked Oct 14, 2024

by Elizabeth Buckwalter

8.1k points

1 answer

5 votes

67.1k views

Look at the different structural formulas provided and determine which would be most likely to dissolve in methanol. a) The one with polar functional groups b) The one with nonpolar functional groups c)

Dylan Kerler asked Oct 14, 2024

by Dylan Kerler

8.3k points

1 answer

5 votes

128k views

Which of the following atoms would one potassium (K) atom bond to in order to form a molecule? a) 1 Chlorine (Cl) b) 1 Hydrogen (H) c) 1 Lithium (Li) d) Boron (B)

Jack Sexton asked Oct 14, 2024

by Jack Sexton

8.4k points

1 answer

3 votes

200k views

What development led to the realization that Dalton's atomic model was too simple? A. Scientists discovered that all matter is made up of atoms. B. Scientists found that smaller particles within an atom

Sholte asked Oct 14, 2024

by Sholte

8.7k points

1 answer

3 votes

97.1k views

Determine the pKb for the base B given that the equilibrium concentrations are [B]=2.64 M, [HB+]=1.5 M, and [OH−]=1.2 M. A) 3.12 B) 3.96 C) 1.58 D) 2.71

Plyto asked Oct 14, 2024

by Plyto

7.6k points

1 answer

4 votes

218k views

Lactic acid tests are performed without the use of a ?

Samuel Nde asked Oct 14, 2024

by Samuel Nde

8.1k points

1 answer

0 votes

75.8k views

What is the minimum oil quantity required for the Base Model and NEO Model?

Alfred Jingle asked Oct 14, 2024

by Alfred Jingle

7.9k points

1 answer

0 votes

10.5k views

List at least two situations in which electricity flows outside of common electrical wires.

Paulinventome asked Oct 14, 2024

by Paulinventome

7.8k points

1 answer

3 votes

78.1k views

When 0.500 mol of HC2H3O2 is combined with enough water to make a 300.0 mL solution, the concentration ( molarity ) of HC2H3O2 is __________

Venkatesan asked Oct 14, 2024

by Venkatesan

8.6k points

1 answer

0 votes

93.5k views

The "like dissolves like" rule is the reason why water cannot dissolve a. salt b. sugar c. vinegar d. oil

Francesco Abeni asked Oct 14, 2024

by Francesco Abeni

8.4k points

1 answer

2 votes

145k views

A certain reaction proceeds by first-order kinetics. The half-life of the reaction is 180s. What percent of the initial concentration remains after 900s? a. 6.25% b. 12.5% c. 25% d. 50%

Harjeet Jadeja asked Oct 14, 2024

by Harjeet Jadeja

8.6k points

1 answer

3 votes

131k views

What type of reaction will happen CaCl2 + Na2SO4 -> CaSO4 + 2NaCl

Ilia Choly asked Oct 14, 2024

by Ilia Choly

8.0k points

1 answer

3 votes

134k views

What is the definition of the word solstice?

SVG asked Oct 14, 2024

by SVG

8.9k points

2 answers

1 vote

68.1k views

Sodium laurel sulfate and ammonium luareth sulfate are found in what product?

Hanachronism asked Oct 14, 2024

by Hanachronism

8.9k points

1 answer

5 votes

172k views

Which scientist first discovered X-Rays? 1.Wilhelm Conrad Roentgen 2.Doctor H. G. Gama 3.Doctor Otto Proton 4.Raymond Cathode

Jana asked Oct 14, 2024

by Jana

9.2k points

1 answer

1 vote

106k views

cite three reasons why ferrous alloys are used so extensively. cite three characteristics of ferrous alloys that limit their use.

Kin Siang asked Oct 14, 2024

by Kin Siang

7.5k points

1 answer

2 votes

107k views

What element forms an ion with a +2 charge that has an electronic configuration of 12 222632364231046 (or [Kr])?

Justin Warkentin asked Oct 14, 2024

by Justin Warkentin

8.6k points

1 answer

2 votes

161k views

The diagram shows the characteristics of two different components of scientific knowledge. Consider the statements and how they relate to the validity of a scientific experiment. Which statement correctly

Wind asked Oct 14, 2024

by Wind

7.9k points

1 answer

5 votes

121k views

When a 5.10-g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 20.5 to 33.2°C. What is the heat absorbed by the water?

Tobiloba asked Oct 14, 2024

by Tobiloba

8.6k points

1 answer

0 votes

231k views

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