1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vanyuwa [196]
3 years ago
11

A 98.0°C piece of cadmium (c=.850J/g°C) is placed in 150.0g of 37.0°C water. After sitting for a few minutes, both have a temper

ature of 38.6°C. What was the mass of the cadmium sample?
Chemistry
1 answer:
Eduardwww [97]3 years ago
3 0
The answer is 19.9 grams cadmium. 
Assuming there was no heat leaked from the system, the heat q lost by cadmium would be equal to the heat gained by the water:
     heat lost by cadmium = heat gained by the water
     -qcadmium = qwater
Since q is equal to mcΔT, we can now calculate for the mass m of the cadmium sample:
     -qcadmium = qwater
     -(mcadmium)(0.850J/g°C)(38.6°C-98.0°C)) = 150.0g(4.18J/g°C)(38.6°C-37.0°C)
     mcadmium = 19.9 grams
You might be interested in
Which type of relationship exists between Alaskan brown bears and salmon? A. predation B. mutualism C. competition D. commensali
aksik [14]

Answer:

A. predation.

Explanation:

Predation is a type of ecological interaction in which one organism which is known as predator feeds upon another organism thereby killing it. The organism which is killed by predator is known as prey. In such interaction one organism is benefited while another one is harmed.

Brown bears of Alaska feed upon salmon. In order to so they have developed many ways which include waiting at the bottom of falls from where salmons pass by or standing at the bottom of the falls.

3 0
3 years ago
WHAT ARE SOME POSSIBLE CONSEQUENCES IF A HUMAN BODY DOES NOT MAINTAIN<br> HOMEOSTASIS
BARSIC [14]

Answer: If homeostasis is disrupted, it must be controlled or a disease/disorder may result.

Explanation: What happens if there's disruption? Your body systems work together to maintain balance. If that balance is shifted or disrupted and homeostasis is not maintained, the results may not allow normal functioning of the organism.

7 0
3 years ago
Read 2 more answers
Which of the following features is common to both acids and bases? A. ability to burn skin B. similar taste C. pH measurements g
Lynna [10]
<h3>Answer:</h3>

            Correct Option-A (Ability to burn skin)

<h3>Explanation:</h3>

                    When skin tissues are exposed to Acids or Bases a chemical burn occurs as both of these substances are corrosive in nature. These burns occur without providing any heat, results from a very fast reaction, are extremely painful and causes damage to structures present under skin.

                    Option-B is incorrect because Acids taste sour, while, Bases taste bitter.

                    Option-C is incorrect because pH of Acids is less than 7 while, pH of Bases is greater than 7.

3 0
3 years ago
Read 2 more answers
what modifications to either or both of the half-cell reactions would kim need to make if she wanted to use them to produce equa
kompoz [17]

We have to add the both half cell equations and eliminate the number of electrons lost/gained.

<h3>What modification must Kim make to the equations?</h3>

The term redox reaction is a type of reaction that occurs when an electron  is lost or gained in a reaction system. We can see that in this reaction, zinc looses two electron which are gained by copper.

If we want to obtain the equation 4.9 which is the overall equation of the redox reaction from the various half cell equations then we have to add the both half cell equations and eliminate the number of electrons lost/gained.

Learn kore about redox reaction:brainly.com/question/13293425

#SPJ1

7 0
1 year ago
A car drives with constant speed of 112km/h. How long will it take to travel to distance of 56 kilometers?
SSSSS [86.1K]

112 km is travelled by car in 60 minutes

1 km is travelled by car in 60/112 minutes

56 km is travelled by car in 60/112*56 = 30 minutes  = 0.5 hours

Explanation:

3 0
3 years ago
Other questions:
  • Write the molecular formula for a compound with the possible elements C, H, N and O that exhibits a molecular ion at M+ = 84.095
    8·1 answer
  • With all his gear, Neil Armstrong weighed 360 pounds on Earth. When he landed on the Moon, he weighed 60 pounds. Why?
    7·1 answer
  • How many molecules of water are in 1.52 moles of water?
    13·1 answer
  • The equilibrium constant for the following reaction: H2(g) + Br2(g) ↔ 2HBr (g) is 1.10 x 103 at a certain temperature. Find the
    10·1 answer
  • How many liters of water do we need to add to 5.00 moles to get a 0.648 M solution?
    5·1 answer
  • How many valence electron does sulfur
    6·1 answer
  • What are valence electrons? The number of neutrons in a nucleus. The number of protons in the nucleus. The atomic mass is the sa
    11·1 answer
  • How many atoms are in 0.909 moles of silver?
    11·1 answer
  • Please help......A 0.01 g bullet travels with a velocity of 1500 m/s. What is its momentum?
    8·1 answer
  • Identify and describe the different forms of precipitation shown in the images.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!