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
Nastasia [14]
3 years ago
13

What determines the chemical properties of an element? A. the number and arrangement of the electrons in an atom B. the number o

f neutrons and protons in an element C. the arrangement of all the neutrons, protons, and electrons D. the atomic mass of an atom
Physics
2 answers:
bonufazy [111]3 years ago
6 0
<span>The sum of the protons and neutrons in an atom equals the mass number.    </span>
stepan [7]3 years ago
5 0

the answer would be A. the number and arrangement of the electrons in an atom

ik bc i took the test

:)

You might be interested in
What will be the final temperature if a 4.00 g silver ring at 41.0◦C if it gives off 18.0 J of heat to the surroundings? The spe
Eduardwww [97]

Answer:

Final temperature, T_f=21.85^{\circ}

Explanation:

Given that,

Mass of silver ring, m = 4 g

Initial temperature, T_i=41^{\circ}C

Heat released, Q = -18 J (as heat is released)

Specific heat capacity of silver, c=0.235\ J/g\ C

To find,

Final temperature

Solution,

The expression for the specific heat is given by :

Q=mc\Delta T

Q=mc(T_f-T_i)

T_f=\dfrac{-Q}{mc}+T_i

T_f=\dfrac{-18}{4\times 0.235}+41

T_f=21.85^{\circ}

So, the final temperature of silver is 21.85 degrees Celsius.

5 0
3 years ago
What happens when a force exerted on an object cause the object to move?
Charra [1.4K]

Answer:

B. Kinetic energy is created

Explanation:

5 0
2 years ago
Read 2 more answers
A 1200 kg sports car accelerates from 0 m/s to 30 m/s in 10 s. What is the average power of the engine?
DIA [1.3K]

Answer:

3600N

Explanation:

Given: m = 1200kg, Vo = 0m/s, Vf = 30m/s, Δt = 10s

ΣF = ma

we need to find 'a' first, using the definition of 'a' we get equation:

a = (Vf-Vo)/Δt

a = (30m/s)/10s

a = 3 m/s^2

now substitute into top equation

ΣF = ma

Fengine = (1200kg)(3m/s^2)

Fengine = 3600N

5 0
2 years ago
Read 2 more answers
Which of the following is not a reason fluorescent lamps are advantageous over incandescent lamps?A. Fluorescent lamps are more
mr_godi [17]

Answer:

B. Fluorescent lamps operate at a higher temperature than incandescent

Explanation:

Fluorescent lamps have a number of advantages over incandescent lamps which are given in the options given in A, C and D. The option available in B is a drawback, not an advantage. This is because it can give out and radiate more heat as a result of working at a higher temperature. Hence B option is correct.

8 0
3 years ago
Why might the term red hot be misleading? (relating to stars)
Allushta [10]

red hot is hot, but other colours are even hotter. stars may be hotter than red hot.

there is also something calle the red shift.

3 0
2 years ago
Other questions:
  • Gravity is greater when there is
    11·2 answers
  • Which action packs down the soil and depletes vegetation? A. wind erosion B. overgrazing C. sedimentation D. sand dune formation
    13·2 answers
  • Which of the following statements is true?
    12·1 answer
  • Which of the following is the best example of a primary circular reaction?
    9·1 answer
  • In what setting do all frequencies of electromagnetic waves travel at the same speed?
    13·1 answer
  • If a stereo has a dial that changes the volume of the sounds the stereo makes, what is the dial doing? a. changing the number of
    9·2 answers
  • If a car changes ita velocity from 32km/hr to 54km/hr in 8.0 seconds, what is its acceleration
    7·1 answer
  • 2. What is the total effect of sound produced in an enclosed space called?
    8·1 answer
  • What kind of energy does an unlit match have?
    13·1 answer
  • 39 liters of water at
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!