« previous next »

Author Question: Two aqueous solutions are both at room temperature and are then mixed in a coffee cup calorimeter. ... (Read 118 times)

karateprodigy

  • Hero Member
  • *****
  • Posts: 550
on: Aug 27, 2018
Two aqueous solutions are both at room temperature and are then mixed in a coffee cup calorimeter. The reaction causes the temperature of the resulting solution to fall below room temperature. Which of the following statements is true?
 
  A) The products have a lower potential energy than the reactants.
  B) This type of experiment will provide data to calculate Erxn.
  C) The reaction is exothermic.
  D) Energy is leaving the system during reaction.
  E) None of the above statements are true.

Question 2

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19g/cm3.
 
  A) 8.60  103 cm3
  B) 116 cm3
  C) 11.6 cm3
  D) 8.60 cm3
  E) 0.116 cm3


mmpiza

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Aug 27, 2018
Answer to Question 1

E

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

A patient examination room should be simple and efficiently designed. A patient examination room should be simple and efficiently designed.
Reasons for Denied Claims and Solutions Reasons for Denied Claims and Solutions
Integumentary regulation of body temperature. Integumentary regulation of body temperature.
E85 has 85% ethanol mixed with 15% gasoline. E85 has 85% ethanol mixed with 15% gasoline.
How to find when Celsius and Fahrenheit are the same temperature How to find when Celsius and Fahrenheit are the same temperature
An aqueous solution has a normal boiling point of 103.0C. What is the freezing point of this ... An aqueous solution has a normal boiling point of 103.0C. What is the freezing point of this ...
Video: Semidiscontinuous DNA replication

For a complete list of videos, visit our video library