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What is the maximum perimeter of a square that can fit inside a circle of radius 5 cm? A. 20 B. 20√2 C. 10/√2 D. 40 E. 20/√2

YanouHD asked Oct 7, 2024

by YanouHD

7.5k points

1 answer

1 vote

102k views

A gas with a volume of 6.47 L at a pressure of 0.76 atm is allowed to expand until the volume raises to 62 L. What is the new pressure (in atm)?

Aehiilrs asked Oct 7, 2024

by Aehiilrs

7.9k points

1 answer

4 votes

87.3k views

Calculate the concentration of sulfate ion when BaSO4 just begins to precipitate from a solution that is 0.0758M in Ba2+. a) 3.79×10−4M b) 5.07×10−4M c) 7.58×10−5M d) 1.52×10−4M

Anton Geraschenko asked Oct 7, 2024

by Anton Geraschenko

7.8k points

1 answer

2 votes

138k views

Which word names melted rock and minerals found beneath Earth's crust? A. lava B. magma C. rhyolite D. gabbro

Mohit Kejriwal asked Oct 7, 2024

by Mohit Kejriwal

8.1k points

2 answers

0 votes

225k views

Which of the listed hydrolysable compounds cannot be used as a coupling partner for the chemical synthesis of ATP (ADP + Pi + H+→ ATP + H2O)? Question 2 options: Glucose-1-phosphate (DGo' = -21.0 kJ/mol

Ricard asked Oct 7, 2024

by Ricard

7.4k points

1 answer

0 votes

127k views

A 15ml sample of oxygen gas is contained in a syringe of 1.14 atm. what would happen to the pressure of the gas if the syringe is compressed to a volume of 7 ml?

Potherca asked Oct 7, 2024

by Potherca

8.4k points

1 answer

3 votes

10.7k views

Bronze is an alloy of Cu and? 1) Fe 2) Pb 3) Sn 4) Zn

Lfzawacki asked Oct 7, 2024

by Lfzawacki

8.2k points

1 answer

0 votes

223k views

a reaction requires 22.4 l of gas at stp. you have 25.0 l of gas at 101.5 kpa and 373 k. which statement is true? use the ideal gas law: pv

Hamid Sarani asked Oct 7, 2024

by Hamid Sarani

8.1k points

1 answer

0 votes

630 views

Write the net ionic equation for the reaction between H₃PO₄ and NaOH.

Emmenlau asked Oct 7, 2024

by Emmenlau

8.3k points

1 answer

0 votes

128k views

Ethanol and dimethylether are examples of isomers- 2 molecules with the same molecular formula but the atoms are connected differently. Draw the Lewis structures for ethanol, (C₂H₅OH), and dimethylether

Pegah asked Oct 7, 2024

by Pegah

7.7k points

1 answer

3 votes

97.1k views

Calculate the stoichiometric amount of CaCl₂ needed to convert all of the CuSO₄ into CuCl₂. Show that calculation here! (Need a hint? Start by writing a balanced chemical equation between CuSO₄ and CaCl₂.

Epsiloncool asked Oct 7, 2024

by Epsiloncool

8.7k points

1 answer

4 votes

204k views

What does a heat pump not do? question 28 options: a. increase entropy b. move heat from a low temperature region to a high temperature region d. perform work on its surroundings c. conserve energy

Ade asked Oct 7, 2024

by Ade

8.4k points

1 answer

4 votes

8.3k views

What is the total number of valence electrons in CO₂? a) 15 b) 24 c) 16 d) 8

Teka asked Oct 7, 2024

by Teka

8.4k points

1 answer

2 votes

57.6k views

In the following Lewis structure for phosphate, phosphorus has a formal charge of ____ and an oxidation number of ____?

Nelson Shaw asked Oct 7, 2024

by Nelson Shaw

7.7k points

1 answer

5 votes

91.2k views

Which of the following reactions would result in an ANTI- addition? a. the addition of HCl b. hydrogenation c. the addition of mCPBA followed by H₃O⁺ d. the addition of OsO₄ followed by NaHSO₃

Darlan Dieterich asked Oct 7, 2024

by Darlan Dieterich

8.7k points

1 answer

4 votes

56.8k views

Many periodic tables place lanthanum and actinium in the f-block of elements, for example, this periodic table from Los Alamos National Laboratory. However, this table from the Royal Society of Chemsitry

Flicken asked Oct 7, 2024

by Flicken

7.8k points

1 answer

5 votes

197k views

Which choice gives the correctly balanced equation for this reaction? AgNO3 (aq) + Na₂CO3 (aq) → Ag2CO3 (s) + NaNO3(aq) Ag₂NO, + Na₂CO, Ag, CO, + Na,(NO3)₂ 4AgNO, +2Na₂CO, -2Ag,CO, +4NaNO, AgNO,+ Na₂CO,

Sovos asked Oct 7, 2024

by Sovos

8.8k points

1 answer

5 votes

33.9k views

Its calculators can be set to any combination, so many amino acids, so much sulfur, so much butterfat and alkaline." This sentence is related to: a) Chemistry b) Biology c) Mathematics d) Physics

QPTR asked Oct 7, 2024

by QPTR

7.7k points

1 answer

4 votes

211k views

When given an isotope that is in the nuclear or hyphen form, what is the next step you take to figure out the other pieces of information such as atomic number, protons, neutrons and electrons? A) Analyze

OrdoDei asked Oct 7, 2024

by OrdoDei

8.1k points

1 answer

3 votes

130k views

indigo is the dye used in coloring blue jeans. the term navy blue is derived from the use of indigo to dye british naval uniforms in the eighteenth century. the structure of the indigo molecule is c n

Richal asked Oct 7, 2024

by Richal

7.3k points

1 answer

1 vote

213k views

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