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
Svetlanka [38]
3 years ago
12

Please Help 20 points+ Brainliest

Chemistry
1 answer:
Alexeev081 [22]3 years ago
7 0
I think A I'm sorry if I'm wrong I hope I'm right :)

You might be interested in
Determine the final temperature of sample with a specific heat of 1.1 J/g°C and a mass of 385 g if it starts out at a temperatur
Assoli18 [71]

Answer:

T2 =21.52°C

Explanation:

Given data:

Specific heat capacity of sample = 1.1 J/g.°C

Mass of sample = 385 g

Initial temperature = 19.5°C

Heat absorbed = 885 J

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = Final temperature - initial temperature

885J = 385 g× 1.1 J/g.°C×(T2 - 19.5°C )

885 J = 423.5 J/°C× (T2 - 19.5°C )

885 J / 423.5 J/°C = (T2 - 19.5°C )

2.02°C = (T2 - 19.5°C )

T2 = 2.02°C + 19.5°C

T2 =21.52°C

8 0
3 years ago
What do elements in the first two columns of the periodic table have in common?
coldgirl [10]

Answer: b.) they tend to lose electrons to gain stability

Explanation:

5 0
3 years ago
A change in state is a physical change.<br><br>True or false​
Morgarella [4.7K]

Answer: Depending on the state of change it can be a physical change. Example: Evaporation is the physical change of a liquid turned into a gas.

That said, I'm pretty sure the answer is (True)

Note: Hope this is correct and it helps. Good luck :)

5 0
3 years ago
Chemists use activity series to determine whether which type of reaction will occur?
ruslelena [56]
Single replacement reactions.  For example copper is more reactive than silver.  So a copper wire in a silver solution will cause the silver to become a metal again.
5 0
3 years ago
Read 2 more answers
The gases that surround Earth or another planet.
yan [13]

Answer:

i think that it is an atmosphere.

Explanation:

3 0
3 years ago
Other questions:
  • What is the poh of an aqueous solution at 25.0 °c that contains 1.35 × 10-8 m hydroxide ion?
    9·1 answer
  • A balloon has a volume of 125mL with 10 pumps of gas. The balloon is reduced in volume to 88mL, how much gas is in the balloon?
    14·1 answer
  • What three factors affect the rate of dissolution?
    14·1 answer
  • How do you find moles
    5·2 answers
  • What is the molecular formula of the compound
    7·1 answer
  • The ph of a finished water from a water treatment process is 10.74. What amount of .02 n sulfuric acid, in milliliters, is requi
    15·1 answer
  • Which lunar phrase follows a waning crescent phase?
    11·1 answer
  • Enzymes are essential to cells because they are responsible to either making or breaking other molecules the cells need. True or
    14·2 answers
  • Each element is defined by the number of​
    13·2 answers
  • At room temperature, compounds that are held together by covalent bonds tend to exist in what state?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!