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
DiKsa [7]
3 years ago
10

5. The heat of fusion of lead is 25 J/g and its melting point is 601 K. How much heat is given off as 3.0 g

Chemistry
1 answer:
PIT_PIT [208]3 years ago
5 0

Answer:

the heat given off is 75 J.

Explanation:

Given;

latent heat of fusion of lead, L= 25 J/g

mass of liquid lead, m = 3.0g

The heat given off is calculated as;

H = Lm

Where;

H is the quantity of heat given off

H = 25 x 3

H = 75 J.

Therefore, the heat given off is 75 J.

You might be interested in
Ascientist is measuring the pressure that is exerted by each of the following gases in the atmosphere: carbon dioxide, oxygen,
Rzqust [24]

Answer:

Partial pressure

Explanation:

the scientists is measuring different pressure, so it would be partial pressure. Hope that this helps you and have a great day :)

4 0
3 years ago
Atoms with an electric charge come charged by gaining or losing
dexar [7]

Is the atoms of electric

6 0
3 years ago
SUPPLEMENTARY QUESTION
sergiy2304 [10]

Answer:

850 Calories.

Explanation:

The following data were obtained from the question:

Mass (M) = 50 g

Initial temperature (T1) = 20 °C

Final temperature (T2) = 37 °C

Specific heat capacity (C) of water = 1 cal/g°C

Heat absorbed (Q) =..?

Next, we shall determine the change in temperature of water.

This can be obtained as follow:

Initial temperature (T1) = 20 °C

Final temperature (T2) = 37 °C

Change in temperature (ΔT) =..?

Change in temperature (ΔT) = T2 – T1

Change in temperature (ΔT) = 37 – 20

Change in temperature (ΔT) = 17 °C

Finally, we shall determine the heat absorbed. This can be obtained as follow:

Mass (M) = 50 g

Specific heat capacity (C) of water = 1 cal/g°C.

Change in temperature (ΔT) = 17 °C

Heat absorbed (Q) =..?

Q = MCΔT

Q = 50 x 1 x 17

Q = 850 Calories

Therefore, the heat absorbed is 850 Calories.

3 0
3 years ago
Read 2 more answers
Which of these is a base? a-vinegar b-ammonia c-HCl d- HNO3
Lady_Fox [76]
B- ammonia. ammonia has a pH level of about 11, and anything higher than 7  is more basic and anything less than 7 is more acidic. 7 is considered neutral.
6 0
4 years ago
Read 2 more answers
in one analysiss 1.09 x 10^13 molecules of ozone were found in 1.00ml of air how many ozone moles are these
Step2247 [10]

Answer:10,900,000,000,000 ozone moles

Explanation:

7 0
3 years ago
Other questions:
  • What is the main responsibility of scientists when enviermental laws are proposed?
    10·1 answer
  • Is a substances ability to conduct energy a physical or chemical property?
    7·1 answer
  • A student has to perform an experiment on the effect of heat on a particular chemical which can be seen in the form of a color c
    7·1 answer
  • What state of matter has defined value but undefined shape
    14·2 answers
  • PLEASE ANSWER ASAP
    8·2 answers
  • What is required in order to determine wether or not an object moves
    6·1 answer
  • Help please! worth 100 points!
    10·2 answers
  • 2) Choose the best answer. Which type of reaction is this? NaOH + H2O → Na+ + OH strong base dissociation strong acid dissociati
    13·1 answer
  • If the density of a certain oil is 0.8gcm3. What is the mass of 10 cm3 sample of this oil?
    7·1 answer
  • The number of valence electrons <br> from the left to right across a period.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!