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
Stells [14]
2 years ago
5

Why do chemical equations have to be balanced

Chemistry
1 answer:
igomit [66]2 years ago
5 0

Answer:

The chemical equation needs to be balanced so that it follows the law of conservation of mass

Explanation:

You might be interested in
What is kinetic energy of a 155 kg object moving at speed of 20 m/s
Novay_Z [31]

Answer:

KE = 1/2*m*v^2

KE = 1/2*150kg*(20 m/s)^2

KE = 75kg * 400m²/s²

KE = 30,000 kg*m²/s²

KE = 30,000 N*m

KE = 30,000 J

Explanation:

Hope this helped.

A brainliest is always appreciated.

4 0
1 year ago
Why do a planets speed change in orbit
gayaneshka [121]

According to Kepler's  second law of orbital motion, a plane's orbital speed changes , depending on how far it is from the sun. The closer a planet is to the sun, the stronger the sun's gravitational pull on it, and the faster the planet moves.  The farther away from the sun, the weaker the sun's gravitational pull and the slower it moves in its orbit.

The orbit of a planet around the sun is not  a perfect circle, but  an ellipse - a flattened circle.


3 0
2 years ago
What charge would Balloon #2 have? How did you determine this?
tigry1 [53]

Answer:I belive it would be attracted seeing as how there are more magmatic charges on that side of no 2 and how there are more positive charges on the middle side of ballon no1.

Explanation:

4 0
2 years ago
How is the structure of atoms altered during fission and fusion?
Dmitriy789 [7]
At first sight it doesn't bode well. The key is in how firmly the protons and neutrons are held together. In the event that an atomic response produces cores that are more firmly bound than the firsts then vitality will be created, if not you should place vitality into make the response happen.
6 0
3 years ago
An open "empty" 2 L plastic pop container, which has an actual inside volume of 2.05 L, is removed from a refrigerator at 5 °C a
Pani-rosa [81]

2.168 L of air will leave the container as it warms

<h3>Further explanation</h3>

Given

V₁=2.05 L

T₁ = 5 + 273 = 278 K

T₂ = 21 + 273 = 294 K

Required

Volume of air

Solution

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}

Input the value :

V₂=(V₁.T₂)/T₁

V₂=(2.05 x 294)/278

V₂=2.168 L

3 0
3 years ago
Other questions:
  • Which of these substances acts as a buffer? <br> a. blood <br> b. lemon juice <br> c. curd
    12·1 answer
  • QUICKEST GETS BRAINLIEST AND 7 POINTS
    10·1 answer
  • The attraction between positive ions and surrounding mobile electrons forms which type of bond?
    14·1 answer
  • how much energy has your body used, in joules, if your health device indicates that 450 calories were burned during your workout
    14·1 answer
  • Espresso Coffee House is designing a coffee mug that keeps liquids hot. The research department tested several different materia
    12·1 answer
  • Which of the following correctly describes the importance of the carbon cycle? to recycle oxygen-based compounds to replenish ni
    7·2 answers
  • Use Hess law and the following equations to calculate H for the reactio below
    7·1 answer
  • What effect has impurities on the melting and boiling points of pure substances? illustrate your answer with an example
    11·1 answer
  • If I have an unknown quantity of gas at STP with a volume of 41 liters, how many moles of gas do
    7·1 answer
  • Name the type of reaction illustrated
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!