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
erastovalidia [21]
3 years ago
7

Please help !!!!!

Chemistry
2 answers:
bagirrra123 [75]3 years ago
6 0

Answer:

Explanation:

warm up 2.5C

mass 4.37

specific heat 0.24

energy = 2.5*4.37*0.24

= 2.6J

GaryK [48]3 years ago
4 0

Answer:

Explanation:

Energy needed = mass * temperature difference * specific heat

= 4.37 * (27.5-25) * 0.24

= 4.37 * 2.5 * 0.24

= 2.622J

You might be interested in
The higher the pH, the less acidic the solution
marshall27 [118]

Answer:

<em>yh thats true lol, ty for that very interesting fact</em>

6 0
3 years ago
Read 2 more answers
Changes in temperature can often cause a change in the state of matter of objects. A decreasein temperature causes which of the
STALIN [3.7K]

Answer:

B. Water will freeze

<em>because</em><em> </em><em>the</em><em> </em><em>latent</em><em> </em><em>heat</em><em> </em><em>of</em><em> </em><em>vapourization</em><em> </em><em>decreases</em><em>.</em>

5 0
3 years ago
Determine the volume of 3.30 mol of a gas at 25°C and 0.995 atm.
Alexxx [7]

Answer:

V = 81.14 L

Explanation:

Given data:

Volume of gas = ?

Number of moles = 3.30 mol

Temperature of gas = 25°C

Pressure of gas = 0.995 atm

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K

T = temperature in kelvin

Now we will convert the temperature.

25+273 = 298 K

now we will put the values in formula:

V = 3.30 mol 0.0821 atm.L/ mol.K   298 K / 0.995 atm

V = 80.74 L. atm / 0.995 atm

V = 81.14 L

4 0
3 years ago
In an endothermic reaction, a drop in temperature would be observed.<br><br> TRUE<br> or <br> FALSE
zvonat [6]
The answer is True! Hope this helps correct me if I’m wrong
8 0
4 years ago
Read 2 more answers
The matter in this series of images is going through a change. Draw a conclusion about the type of change shown. Is it a physica
34kurt

Answer:

This is a chemical change because it has been lit on fire. When it is lit on fire, the fire has been made, heat has been made, and gasses produced from the fire have also been made. Because this introduces new matter to the pictures, it is a chemical reaction.

Explanation:

8 0
3 years ago
Other questions:
  • Bauxite is the chief ore from which aluminum is extracted. Which of these statements is correct about bauxite?
    12·2 answers
  • Why does it take so long time to develop a new variety of tomato
    9·1 answer
  • I need help asaaaaap
    10·1 answer
  • Calculate the mass percent of a solution prepared by dissolving 17.2 g of NaCl in
    5·2 answers
  • Mercury is an element. Which of the following would be the same for all atoms of mercury?
    6·2 answers
  • What is the percent yield of potassium chloride if potassium reacts with excess chlorine gas to produce 10.3 grams of potassium
    8·1 answer
  • Consider the following reaction: . SO2Cl2(g)⇌SO2(g)+Cl2(g) . A reaction mixture is made containing an initial [SO2Cl2] of 2.2×10
    13·2 answers
  • A certain substance X has a normal boiling point of 124.2 °C and a molal boiling point elevation constant K,-06-0C-kg-mol ·A sol
    9·1 answer
  • The gas phosphine (PH3) is used as a fumigant to protect stored grain and other durable produce from pests. Phosphine is generat
    13·2 answers
  • Explain why atoms would gain or lose electrons in order to resemble the elements in the particular group you named above. Consid
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!