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
Delvig [45]
2 years ago
6

I NEED HELP!!!

Chemistry
1 answer:
True [87]2 years ago
6 0

Answer:

Explanation:

Formula

Heat = m * c * delta t

t = temperature in centigrade.

The first thing you have to do is convert kelvin degrees to centigrade. The conversion factor is - 273. The formula is degrees centigrade = degrees kelvin - 273. It is easier to understand with a couple of examples.

  • 290o K = 290 - 273 = 17
  • 325. K =   325 - 273 = 52

Solution

Heat = 100.0 grams * 4.18 J/g*C * (52 - 17)

Heat = 100 * 4.18 * 35

Heat = 14630 Joules

But you want kj

Heat = 14630 / 100 = 14.63

Answer

Heat = 14.6 kj

You might be interested in
Write a procedure for how you would measure the effect of reactant concentration on the reaction rate
castortr0y [4]
You would need instructions. Do it with science materials.
5 0
3 years ago
How many valence electrons are in the outermost energy level of each of the following elements? A. Helium B. Lithium C. Nitrogen
aleksklad [387]
<span>A. Helium </span>atomic number 2
hope it helps
8 0
2 years ago
Write a balanced chemical equation for the reaction that occurs when barium carbonate decomposes into barium oxide and carbon di
n200080 [17]
BaCO3=BaO+CO2
 IS THE EQUATION REPLACE = WITH AN ARROW.


4 0
3 years ago
What is PO3 compound name?
OleMash [197]

Answer:

PHOSPHITE ION is the correct answer.

Explanation:

Hope this helped Mark BRAINLIEST!!!

4 0
3 years ago
What does this mean???
satela [25.4K]

Answer:

Its known as static electricity

8 0
2 years ago
Other questions:
  • Convert 34.59cm3 to cubic inches (in3) given that 1 inch = 2.54cm
    8·1 answer
  • Why does salt <br> dissollve in water act as an antifreeze
    10·2 answers
  • What is the definition of physical and chemical properties of matter?
    7·1 answer
  • What is the difference between the plasma and gaseous states of matter?
    10·1 answer
  • How reactive is an atom of Sodium(Na) and why? Question 1 options: Sodium (Na) is very reactive because it does not have a full
    15·2 answers
  • Which part of a feedback mechanism causes change to make up for the departure from the set point? A. sensor B. effector C. respo
    9·1 answer
  • The mass of a 50-mL volumetric flask is 40.638
    9·1 answer
  • In the galvanic cell Al(s) ǀ Al3+(aq, 1 M) ǀǀ Cu2+(aq, 1 M) ǀ Cu(s) which of the following changes will increase the cell potent
    14·2 answers
  • In 1945, a Raytheon engineer named Percy Spencer was fiddling with energy sources for radar equipment. While testing a new vacuu
    5·1 answer
  • What is the density of a salt solution if 75.0 ml of the solution has a mass of 32.0 g?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!