Recent questions in Chemistry

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Mass = 7.2 g Volume = 0.3 dm³ Calculate the concentration in g/dm³. Concentration = g/dm³

Soonts asked Sep 28, 2024

by Soonts

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The molar heat of combustion of sucrose, C12H22O11, liberates 5650 kJ/mol of heat. A 100g calorimeter with a specific heat capacity of 17.5 J/g C contains 500g water. How many grams of sucrose would have

Edwin Vargas asked Sep 28, 2024

by Edwin Vargas

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The table shows the number of charged particles in an ion. Charged Particles Charge on Particle Number of Particles Positive 3 Negative 2 A negatively charged substance is brought near the ion. What will

Robbert asked Sep 28, 2024

by Robbert

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2 answers

3 votes

52.1k views

The electron configuration of random elements, i.e., 2sp²: a. Carbon (C) b. Oxygen (O) c. Nitrogen (N) d. Hydrogen (H)

DSoa asked Sep 28, 2024

by DSoa

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1 answer

5 votes

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How does the energy in chemical bonds affect the energy in a chemical reaction?

Alexey Ten asked Sep 28, 2024

by Alexey Ten

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1 answer

2 votes

65.5k views

What minimum mass of succimer (in mg) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 48 μg/dL , that total blood volume is 5.0 L, and that one mole

Mathemats asked Sep 28, 2024

by Mathemats

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1 answer

5 votes

223k views

If 10g of V₂O₅ is dissolved in acid and is reduced to V²⁺ by zinc metal, how many mole I₂ could be reduced by the resulting solution if it is further oxidised to VO²⁺ions? A. 0.11 mole of I₂ B. 0.22 mole

Quazi Farhan asked Sep 28, 2024

by Quazi Farhan

7.9k points

1 answer

1 vote

45.9k views

Where are most of the ATP molecules produced in aerobic respiration? O A. Electron transport chain O B. Krebs cycle O C. Fermentation O D. Glycolysis

Ssander asked Sep 28, 2024

by Ssander

8.0k points

1 answer

0 votes

135k views

Boiling point of water at 750 mm Hg is 99.63°C. How much sucrose is to be added to 500 g of water such that it boils at 100°C. Molal elevation constant for water is 0.52 K kg mol⁻¹

JChan asked Sep 28, 2024

by JChan

8.4k points

1 answer

3 votes

27.9k views

PhET Interactive Simulations Part 2 Drawing Molecules to Show 3-Dimensionality Answer. a) Chemistry Lab Exercise b) Molecular Modeling Activity c) Physics Simulation Task d) Software Programming Challenge

Denis Molodtsov asked Sep 28, 2024

by Denis Molodtsov

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3 votes

160k views

What is the standard enthalpy of reaction for (HCl (aq) + NaOH (aq) -> NaCl (aq) + H_2textO (l) )? (a) Exothermic (b) Endothermic (c) Cannot be determined from the given information (d) No change in enthalpy

Null asked Sep 28, 2024

by Null

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216k views

Which emmison will be released from an unstable fe 53 nucleus

James Jensen asked Sep 28, 2024

by James Jensen

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190k views

Which method, if any, could break down the sugar in a sugar cube into simpler substances? A. Distillation B. Combustion C. Fermentation D. Hydrolysis

Khel asked Sep 28, 2024

by Khel

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1 answer

4 votes

2.8k views

In photosynthesis, what is glycerate 3-phosphate (3PG) also known as? a) Ribulose bisphosphate b) Triose phosphate c) Pyruvate d) Fructose 1,6-bisphosphate

Molibar asked Sep 28, 2024

by Molibar

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1 answer

5 votes

174k views

I need help please with this chemistry question

Zepman asked Sep 28, 2024

by Zepman

7.9k points

2 answers

1 vote

29.9k views

What is graphing speed

Aaron Bush asked Sep 28, 2024

by Aaron Bush

8.1k points

1 answer

5 votes

114k views

the enthalpy for boiling water is 40.7 kj/mol. what is the quantity of heat (in kj) required to boil 304.1 g of water?

Mohamed AMAZIRH asked Sep 28, 2024

by Mohamed AMAZIRH

8.4k points

1 answer

0 votes

135k views

How does the molecular structure of an object determine its purpose or function?

GPicazo asked Sep 28, 2024

by GPicazo

7.7k points

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3 votes

167k views

In the molecule of carbon 3(CO₂). what do the symbols represent

Ravshansbox asked Sep 28, 2024

by Ravshansbox

8.4k points

1 answer

4 votes

81.9k views

What is the source in a circuit? A. Where the energy is stored, such as in a battery or solar cell B. What is being powered by the circuit, such as a light bulb, buzzer, or fan C. What connects all parts

Milan Pansuriya asked Sep 28, 2024

by Milan Pansuriya

7.8k points

1 answer

4 votes

214k views

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