Recent questions in Chemistry

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What is the density of an unknown compound in g/ml if 1.28 pounds of the compound has a volume of 4.50L

Ryanlahue asked Dec 18, 2024

by Ryanlahue

8.0k points

1 answer

5 votes

58.7k views

How do you determine if a element or compound is an oxidizing agent or acid?

Pimaster asked Dec 18, 2024

by Pimaster

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1 answer

3 votes

117k views

Strontium chloride and sodium fluoride react to form strontium fluoride and sodium chloride, according to the reaction shown. SrCl2(aq)+2NaF(aq)⟶SrF2(s)+2NaCl(aq) What volume of a 0.550 M NaF solution

Mulkave asked Dec 18, 2024

by Mulkave

8.9k points

1 answer

4 votes

98.4k views

What is the percent yield when 28.16 g of CO2 are formed from the reaction of 4.000 moles of C8H18 with 4.000 moles of O2? a) 20.00% b) 25.00% c) 50.00% d) 12.50%

Beetee asked Dec 18, 2024

by Beetee

7.9k points

1 answer

3 votes

119k views

Titrations are highly controlled chemical reactions that are used to study unknown solutions. Which of the following statements about titrations are true? Select one or more: - The endpoint of a titration

MeghaK asked Dec 18, 2024

by MeghaK

7.3k points

1 answer

4 votes

25.8k views

Suppose a solution has a density of 1.87 g/mL. If a sample has a mass of 17.5 g the volume of the sample in mL is what?

Robin Gertenbach asked Dec 18, 2024

by Robin Gertenbach

8.1k points

1 answer

3 votes

28.7k views

What is the relationship between leaving groups and reactivity of carbonyl compounds?

Ninad Pingale asked Dec 18, 2024

by Ninad Pingale

7.5k points

1 answer

4 votes

144k views

If you want no gloss in your end product what starch do you use? a) Cornstarch b) Tapioca c) Arrowroot d) Cleargel

Massimo Griffani asked Dec 18, 2024

by Massimo Griffani

8.3k points

1 answer

0 votes

44.2k views

For which of the following pairs of salts could you compare their solubility using only their ksp values? 1) Salt 1: NaCl, Salt 2: KCl 2) Salt 1: CaCO₃, Salt 2: MgCO₃ 3) Salt 1: AgCl, Salt 2: AgBr 4) Salt

LizzyPooh asked Dec 18, 2024

by LizzyPooh

8.2k points

1 answer

0 votes

193k views

How are cellular respiration and photosynthesis related? A. They both use ATP energy to produce radiant energy. B. They both use light energy to produce chemical energy. C. All of their chemical products

Dmytro Titov asked Dec 18, 2024

by Dmytro Titov

8.6k points

1 answer

3 votes

197k views

what is the relationship of the successive equivalence point volumes in the titration of a polyprotic acid?

Bek Raupov asked Dec 18, 2024

by Bek Raupov

7.7k points

1 answer

0 votes

69.8k views

Identify the type of reaction occurring in the chemical equation below: NH3 + HCl → NH4Cl

Justin Herrick asked Dec 18, 2024

by Justin Herrick

7.5k points

1 answer

1 vote

171k views

Why was it necessary to heat wet sand before heating zinc granules?

Dgmltn asked Dec 18, 2024

by Dgmltn

8.9k points

1 answer

3 votes

47.7k views

What mass of copper (ii) phosphate will react to produce 8.7 moles of aluminum phosphate? A) 549.2 g B) 732.3 g C) 914.4 g D) 1097.5 g

Martti asked Dec 18, 2024

by Martti

8.6k points

1 answer

2 votes

174k views

According to Tocqueville, the mother of all democratic knowledge is ______. 1. Universal suffrage 2. Voluntary associations 3. Political activism 4. Equality before the law

Taleodor asked Dec 18, 2024

by Taleodor

7.9k points

1 answer

5 votes

206k views

Given below are the statements about diborane. (a) Diborane is prepared by the oxidation of NaBH₄ with I₂. (b) Each boron atom is in sp² hybridized state. (c) Diborane has one bridged 3 centre-2-electron

Dannybucks asked Dec 18, 2024

by Dannybucks

7.2k points

1 answer

1 vote

102k views

4. The elements calcium and strontium have similar chemical properties because they both have the same A) atomic number B) mass number C) number of valence electrons D) number of completely filled sublevels

Tony S Yu asked Dec 18, 2024

by Tony S Yu

8.7k points

1 answer

3 votes

83.9k views

The root mean square speed of the molecules of a diatomic gas is v. When the temperature is doubled, the molecules dissociates into two atoms. The new root mean square speed of the atom is

Max Masnick asked Dec 18, 2024

by Max Masnick

8.4k points

1 answer

5 votes

126k views

The molar mass of p4 is 124 g/mol. use this to calculate the number of moles of p4

Chris Lutz asked Dec 18, 2024

by Chris Lutz

8.4k points

2 answers

2 votes

28.5k views

Calcium and phosphorus have a(n) _______________ relationship a) Synergistic b) Antagonistic c) Independent d) Irrelevant

Johan Boberg asked Dec 18, 2024

by Johan Boberg

8.8k points

1 answer

5 votes

226k views

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