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stepan [7]
3 years ago
5

1. Explain: what is the purpose of balancing a chemical equation?

Chemistry
2 answers:
spayn [35]3 years ago
6 0
The purpose of balancing a chemical equation is to get the correct proportions of reagents and products for a reaction.

How to balance the Chemical Equation:
Step 1: count the number of atoms on each side of the equation
Step 2: Look at coefficients (the number In front of the element) and balance the equation
Step 3: ONLY CHANGE COEFFICIENTS
Step 4: Count polyatomic ions as one item
labwork [276]3 years ago
5 0
Answer for 1: The purpose of balancing a chemical equation is to obtain the correct products for a given reaction

Answer for 2:
Step 1: Write the unbalanced chemical equation

Step 2: Write down the number of atoms

Step 3: Add coefficients to balance mass in a chemical equation

Step 4: balance oxygen and hydrogen atoms
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What is evaporation? Describe what happens at the molecular level during evaporation.
jasenka [17]
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6 0
3 years ago
At one point in the Bike Trip described in the passage, you traveled 1 kilometer in 0.1 hours. What was your speed during that t
stealth61 [152]

Answer:

v = 10 km/h

Explanation:

Step 1: Given data

  • Distance traveled in the Bike Trip (d): 1 km
  • Time elapsed in the Bike Trip (t): 0.1 h

Step 2: Calculate the speed in the Bike Trip

The speed (v) is equal to the distance traveled divided by the time elapsed. We will use the following mathematical expression.

v = d/t

v = 1 km/0.1 h

v = 10 km/h

The speed is 10 kilometers per hour.

7 0
3 years 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
3 years ago
Pls help question 2 ill attach a picture​
Finger [1]

Answer:

X 154

Check solution in explanation

Explanation:

Average atomic mass = ( mass 1× abudance) + ( mass 2× abudance)+ ( mass 3× abudance) / 100

(149×13.8)+(152×44.9) +(154×41.3)/100

2056.2 + 6824.8 + 6360.2/100

=152.412

8 0
3 years ago
What is the surface area of the given figure?
eduard

Answer:

the answer will be 2,280 cm>2

3 0
2 years ago
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