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
Colt1911 [192]
3 years ago
11

Heated bricks or blocks of iron were used long ago to warm beds. A 1.49 -kg block of iron heated to 155 Celsius would release ho

w many joules of heat as it cooled to 22 Celsius ?
Chemistry
1 answer:
AlekseyPX3 years ago
6 0
Specific heat capacity= Quantity of heat/massxΔT
Shc of iron (constant)= 0.4494J/³C for 1g
1.49kg=1490g
Q=1490x(22-155)x0.4494
Q=<span>89057.598J</span>
You might be interested in
How do volcanos such as ojos del salado form?
Ksenya-84 [330]

Answer:

Deep inside Earth, between the molten iron core and the thin crust at the surface, there is a solid body of rock called the mantle. When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt.

Explanation: hot molten rock, ash, and gases escape from the volcano

6 0
3 years ago
Be able to identify the correct elements using clues such as numbers of protons,locations (family/period), number of neutrons, n
Brilliant_brown [7]

an element's name, chemical symbol, atomic number, atomic mass.

IDK what you are even asking for

6 0
3 years ago
Atoms of which of the following elements are largest?<br> A:<br> Na<br> OOOO
elena-14-01-66 [18.8K]

Answer:

yes answer os Na because it's electronic configuration is 1s^2,2s^2,2p^6,3s^1

5 0
3 years ago
If the rate law for a reaction A → P is rate = 3.37x10-3 M^-1 min-1 [A]^2 and the initial concentration of a is 0.122 M, calcula
DedPeter [7]

Rate = 3.37x10-3 M^-1 min-1 [A]^2 and the initial concentration of a is 0.122M.

A rate law indicates the rate of a chemical response depends on reactant concentration. For a response inclusive of the price regulation commonly has the form rate = ok[A]ⁿ, in which okay is a proportionality constant known as the fee regular and n is the order.

The charge of a chemical response is, perhaps, its maximum crucial asset because it dictates whether or not a reaction can arise all throughout an entire life. knowing the charge regulation, an expression concerning the price to the concentrations of reactants can assist a chemist to modify the response conditions to get an extra suitable rate.

half-life is the time taken for the radioactivity of a substance to fall to 1/2 its authentic cost whereas implies existence is the common life of all the nuclei of a particular risky atomic species.

Learn more about rate law here:-brainly.com/question/7694417

#SPJ4

3 0
2 years ago
How does newton’s third law effect bowling?
Misha Larkins [42]

Answer:

The bowling ball will remain in motion until an unbalanced force acts on the bowling ball. ... When the ball hits the pins, they push on the ball with the same amount of force in the opposite direction. This means that the ball will slow down, and the pins will fall, which is the reaction.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Water is an amphoteric substance because it can receive and donate hydrogen ions.
    11·2 answers
  • Will give Brainliest to the best answer! Please help ASAP!
    13·1 answer
  • Determine how many atoms of silver would be produced if 100 grams of copper reacts with an excess of silver nitrate?
    5·1 answer
  • Which region of the periodic table shown here contains elements that are easiest to oxidize?
    5·2 answers
  • if a star is located 100 light years away from earth, how long does it take for its light to reach the earth
    12·1 answer
  • What is the volume of a sample of liquid mercury that has a mass of 53.8 g, given that the density of mercury is 13.6 g/mL? Answ
    12·1 answer
  • Please answer this question to help me out.... 8TH GRADE SCIENCE.
    13·1 answer
  • Aquien le elimina las respuestas
    15·1 answer
  • 1. a) Anthony and Joseph create a start up company to make batteries for electric cars. Iron(III) phosphate is needed to create
    7·1 answer
  • Give free 18 points again just answer yes or no<br> is einstein a scientist? yes or no
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!