Recent questions in Chemistry

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What is the molar mass of a substance that has a mass of 40 grams and a molar amount of 0.8 moles

Ndr asked Sep 27, 2024

by Ndr

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NEEDS TO BE ANSWERED URGENTLY Based on the general solubility rules, which of these compounds is insoluble in water? a. Ca(OH)2 b. (NH4)3PO4 c. Fe(NO3)2 d. BeCO3

Chrisbtoo asked Sep 27, 2024

by Chrisbtoo

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1 answer

1 vote

177k views

How do you make non combustible materials more fire resistive?

Imesh asked Sep 27, 2024

by Imesh

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1 vote

224k views

A beaker contains 44.7 mL of propane (C3H8, density is 0.500g/mL). Determine how many C atoms this liquid contains.

Will Sargent asked Sep 27, 2024

by Will Sargent

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4 votes

227k views

What mass of solid lead would displace exactly 14.15 ml of water?

Andrej Herich asked Sep 27, 2024

by Andrej Herich

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1 answer

0 votes

151k views

Subatomic particles worksheet

Piyush Aggarwal asked Sep 27, 2024

by Piyush Aggarwal

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1 answer

4 votes

164k views

Why should care be used to avoid over filling refrigerant storage cylinders? 1) It can cause the cylinders to burst 2) It can lead to leakage of the refrigerant 3) It can damage the refrigeration system

GoldenBoy asked Sep 27, 2024

by GoldenBoy

8.1k points

1 answer

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201k views

Identify one cationic radical and one anionic radical in the given inorganic salt M₂ on the basis of a dry test. a. Cationic: Flame test, Anionic: Solubility test b. Cationic: Solubility test, Anionic:

Rony Rozen asked Sep 27, 2024

by Rony Rozen

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1 answer

3 votes

109k views

what intermolecular forces are important for the molecule below? [check all that apply.] xef4 group of answer choices A. london dispersion forces D. dipole-dipole C. ion-dipole D. hydrogen bonding E. none

Slavik N asked Sep 27, 2024

by Slavik N

8.1k points

1 answer

0 votes

52.4k views

A reactive metal with a high melting point. It is used in manufacturing rocket nose cones because this low-density substance is remarkably strong. a. Beryllium b. Titanium c. Aluminum d. Tungsten

Peter Morris asked Sep 27, 2024

by Peter Morris

7.8k points

1 answer

3 votes

141k views

Javier's teacher gives him four cards, each displaying information about an element, and asks him to put them in order of reactivity. The elements are carbon (C), helium (He), magnesium (Mg), and potassium

MarkV asked Sep 27, 2024

by MarkV

8.2k points

1 answer

4 votes

110k views

A galvanic cell consists of a Mg electrode in a 1 M Mg(NO3)2 solution and another metal electrode X in a 1 M X(NO3)2 solution. The galvanic cell has an E°cell value of 1.61 V. Which of the following elements

Gustavopch asked Sep 27, 2024

by Gustavopch

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180k views

In a normal cell cycle, the DNA of a cell has been replicated, and the cell is fully grown and developed. What will most likely happen next ?

Alexis Lucattini asked Sep 27, 2024

by Alexis Lucattini

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1 answer

3 votes

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Which of the following statements is true regarding hydrogen bonds? A. Hydrogen bonds involve the sharing of electrons between atoms. B. Hydrogen bonds are weaker than covalent bonds. C. Hydrogen bonds

Swizzard asked Sep 27, 2024

by Swizzard

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1 answer

4 votes

21.2k views

List some example of acidic oxide

Igor Stasenko asked Sep 27, 2024

by Igor Stasenko

7.9k points

1 answer

2 votes

91.7k views

which statements are true about the representation of enthalpy for a thermochemical equation? select all that apply. a. on the product side, it is an exothermic reaction. b. on the reactant side, it is

Pavel Shvedov asked Sep 27, 2024

by Pavel Shvedov

8.4k points

1 answer

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106k views

A solution containing 0.2 g/mL of a pure R enantiomer in a 1 dm polarimeter rotates plane polarized light by +3°. What is the specific rotation of the R isomer? a. +0.6° b. +15° C. +67° d. +150°

Madhuka Harith asked Sep 27, 2024

by Madhuka Harith

8.5k points

1 answer

2 votes

198k views

Normal saline, a 0.90% (w/v) solution of salt (NaCl) in water, is often used as an iv carrier fluid in hospitals. calculate the mass of NaCl in 120 ml of this solution. be sure your answer has a unit symbol

Samiksha asked Sep 27, 2024

by Samiksha

8.2k points

1 answer

4 votes

115k views

What would you observe if benzene was shaken with bromine water? Does this support or oppose Kekulé’s model of benzenes structure. Explain your answer.

Lewis Kelsey asked Sep 27, 2024

by Lewis Kelsey

8.0k points

1 answer

3 votes

34.9k views

How can the tarnish be removed without the loss of silver? 1) Use sodium bicarbonate to reduce the silver sulfide to metallic silver. 2) Use aluminum to reduce the silver sulfide to metallic silver. 3)

Jake Biesinger asked Sep 27, 2024

by Jake Biesinger

7.6k points

1 answer

4 votes

198k views

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