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
Phantasy [73]
3 years ago
6

Why must chemical equations be balanced?

Chemistry
1 answer:
Elina [12.6K]3 years ago
5 0

Answer:

to validate the law of conservation of mass as total no. of reactants must be equal to the total no. of products

You might be interested in
A gas occupies a volume of 650.0 mL when the pressure is 3.50 atm. What will the new volume be if the pressure is reduced to 1.6
Gemiola [76]

The new volume will be 1379 mL.

Explanation:

As per Boyle's law, the product of initial volume and initial pressure of any gas molecule is equal to the product of final volume and final pressure of those molecules.

So here the initial volume is 650 ml and the initial pressure is 3.50 atm. As the temperature is said to be constant, then this system will be obeying Boyle's law. So, the final pressure is given as 1.65 atm. As there is a reduction in the pressure, the volume of the gas is tend to get expanded.

P_{1} V_{1} = P_{2} V_{2}

So, (650*10^{-3}*3.50)=(1.65*V_{2})

V_{2} = \frac{650*10^{-3}*3.50}{1.65} = 1379 mL

So, the new volume of the gas on reduction in pressure is 1379 mL.

7 0
3 years ago
How many valence electrons are in atom of radon?
snow_lady [41]

Answer: 8

Explanation: Radon has 8 valence electrons. Radon is considered stable with a complete octet of electrons, filling the s and p orbitals.

4 0
3 years ago
A natural gas stove transforms R energy into P energy. What do R and P most likely represent?
dezoksy [38]

Answer:

A. R represents chemical energy; P represents thermal energy.

Step-by-step explanation:

The molecules in the gas contain chemical energy (R).

When the gas burns, the chemical energy is released as heat, or thermal energy (P).

5 0
3 years ago
Is sponge cake a heterogeneous mixture
maxonik [38]

Answer:

though many may argue that cake batter is a homogeneous mixture because of its observable uniformity, we know it is heterogeneous. ... In other words, the mixture of ingredients from cake batter results in some chemical reactions here and there, but we are still left with a mixture of things that can be separated.

Explanation:

5 0
3 years ago
How many grams are in 0.220 mol of Ne?
kumpel [21]

Answer:

4.44 g Ne

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

0.220 mol Ne

<u>Step 2: Identify Conversions</u>

Molar Mass of Ne - 20.18 g/mol

<u>Step 3: Convert</u>

<u />0.220 \ mol \ Ne(\frac{20.18 \ g \ Ne}{1 \ mol \ Ne} ) = 4.4396 g Ne

<u>Step 4: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

4.4396 g Ne ≈ 4.44 g Ne

3 0
3 years ago
Read 2 more answers
Other questions:
  • A student completely dissolves some salt in a beaker of water. Which of these statements does NOT describe salt and water?
    5·1 answer
  • If I have a chemical with a 9 on the pH scale, is it safe to handle with the same gloves as I’ve handled fire with??
    15·1 answer
  • The molecules of which phase have the greatest intermolecular forces, compared to their kinetic energies?. . A. plasma. . B. gas
    15·2 answers
  • Two samples of carbon tetrachloride were decomposed into their constituent elements. One sample produced 38.9 g of carbon and 45
    7·1 answer
  • Why do we slant the graduated cylinder before dropping the metal cylinder into it?
    14·1 answer
  • If f(x)= 5x^3 -2 and g(x) =2x+1, find (f+g)(x)
    11·1 answer
  • Which of the following statements is true about the strength of the intermolecular forces in CH4 and NH3?
    8·1 answer
  • Express the following numbers in Standard Form:
    13·1 answer
  • The table shows the specific heat of four substances. The substances are exposed to the Sun for the same length of time. Arrange
    15·1 answer
  • What is culture?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!