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
Alekssandra [29.7K]
3 years ago
15

How do we balance a chemical equation?

Chemistry
1 answer:
Papessa [141]3 years ago
3 0

Answer: placing coefficients

Explanation: In a balanced chemical equation, the total number of atoms of each element present is the same on both sides of the equation. Stoichiometric coefficients are the coefficients required to balance a chemical equation. These are important because they relate the amounts of reactants used and products formed.

You might be interested in
A rock weighing 75.0g is placed in a graduated cylinder displacing the volume from 31.4 ml to 36.5ml. What is the density of the
denis-greek [22]

Answer:

<h2>14.71 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

volume = final volume of water - initial volume of water

volume = 36.5 - 31.4 = 5.1 mL

But

1 mL = 1 cm³

5.1 mL = 5.1 cm³

From the question we have

density =  \frac{75}{5.1}  \\  = 14.705882..

We have the final answer as

<h3>14.71 g/cm³</h3>

Hope this helps you

8 0
3 years ago
calculate the density of a rectangular solid, which has a mass of 25.71g. It is 2.30cm long, 4.01cm wide, and 1.82cm high
LUCKY_DIMON [66]
Volume of a rectangular block= 2.30x4.01x1.82=16.78cm3
Mass of the rectangular block= 25.71 g 
Density of the block will be = 25.71/16.78=1.53 g/cm3
So the 
ANSWER IS 1.53 g/cm3 density
5 0
3 years ago
18.The Halogen family of elements all have 7 valence electrons. Which column would they be in?
nevsk [136]

Answer:

I think it would be c I hope it this helps and it's right

6 0
3 years ago
Please hurry i have like 2 mins!!!!
Marrrta [24]

Answer:

Troposphere.

Stratosphere.

Mesosphere.

Thermosphere.

Exosphere.

Explanation:

3 0
2 years ago
an atomic mass unit is equal to a. one-half the mass of a hydrogen atom. b. one-fourth the mass of a lithium atom. c. one-twelft
pishuonlain [190]
C - one-twelfth the mass of a carbon-12
6 0
3 years ago
Read 2 more answers
Other questions:
  • 2
    14·2 answers
  • Which particle determines the nuclear charge?
    6·1 answer
  • What is the limiting reactant ?
    8·1 answer
  • Taste buds at the back of your tongue are most responsive to sweet.<br> True<br> False
    11·1 answer
  • I have a balloon that can hold 100 liters of air. If I blow up this balloon with 3 miles of gas at a pressure of 1 atmosphere, w
    11·1 answer
  • Complete the equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water. Balanced equation:
    9·1 answer
  • How are transition metals named in metal compounds?
    12·1 answer
  • A 4.05 sample of an unknown gas at 35 C and 1.00 atm is stored in a 2.85 L flask.
    15·2 answers
  • Uh, help plssssssssss​
    9·1 answer
  • The pressure of a gas in a container is 76 mm Hg. This is equivalent to
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!