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
EastWind [94]
3 years ago
10

Please help me with this question number 5!!

Chemistry
1 answer:
shtirl [24]3 years ago
6 0
The answer is B, the electrolysis of water. One cannot be the answer since the condensation of steam requires a loss of heat, an exothermic reaction. Numbers 2 and 3 cannot be correct either as they do not indicate energy in the chemical equation, and so it must be balanced throughout. Meaning that the only possible answer is B.
You might be interested in
The neutron main responsibility is to
jarptica [38.1K]
Neutrons are responsible for combining with protons in the nucleus together to be held by the strong force. Too many neutrons in an atom will result in radioactive decay due to the neutrons' force overpowering the strong force.
5 0
3 years ago
Equation 3x-5=-2x+ 10?<br> O<br> 0<br> x= 5<br> -5 = x<br> -15 = -5x<br> -5x = 15
Harman [31]

Answer:

are those the answer choice

7 0
3 years ago
Which example indicates that a chemical change has occurred? *
andrezito [222]

Answer:

A. When two aqueous solutions are mixed, a precipitate is formed.

Explanation:

The precipitate (a solid substance that falls from the liquid) is the result of a chemical reaction taking place between the liquids.

The other three answer choices are indicative of physical changes (temperature change, phase change, color change).

7 0
3 years ago
What would happen if an alkali metal was combined with a halogen?explain ​
RideAnS [48]
All alkail metals react with halogens vigorously to produce salt. The alkali metal would loose an electron to form and ion with the halogen
7 0
3 years ago
A bulldozer does 15,000 J of work lifting dirt 15 m up to get it out of a hole. How much force did the bulldozer use to accompli
nika2105 [10]

Answer:

<h3>The answer is 3000 N</h3>

Explanation:

The amount of force can be found by using the formula

f =  \frac{w}{d}  \\

w is the workdone

d is the distance

From the question we have

f =  \frac{15000}{5}  \\

We have the final answer as

<h3>3000 N</h3>

Hope this helps you

7 0
2 years ago
Other questions:
  • How does the atmospheric pressure vary with height?
    6·2 answers
  • In Thomson's plum pudding model the mass of the atom is in the A.electrons. B.matter between the electrons. C.nucleus. D.proton
    15·2 answers
  • What is the volume of a 4.0 M solution of KCl that contains 8.0 moles of solute?
    12·1 answer
  • What reaction might we use to synthesize nickel sulfate,niso4? Write equations for acid base neutralization. Include states in y
    14·1 answer
  • Why are thermometers filled with alcohol instead for water?
    11·2 answers
  • Jeff’s father is installing a do-it-yourself security system at his house. He needs to get a device from his workshop that conve
    15·1 answer
  • When the ph of a solution shifts from 7 to 3, how has the hydrogen ion concentration changed?
    13·1 answer
  • Can someone help me. I fell asleep in class. T-T
    15·1 answer
  • Which element does this Bohr model represent? (look at a periodic table if needed)
    15·1 answer
  • Why do you think the older scientist disregarded the younger scientist's prediction?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!