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
marusya05 [52]
3 years ago
8

Do chemical equations with no reaction still have to be balanced

Chemistry
1 answer:
dangina [55]3 years ago
5 0

Answer:

The same number of atoms of each element must appear on both sides of a chemical equation. However, simply writing down the chemical formulas of reactants and products does not always result in equal numbers of atoms. You have to balance the equation to make the number of atoms equal on each side of an equation.

Explanation:

You might be interested in
What are four everyday items that rely on the behavior of gases to operate properly?
Artist 52 [7]
A stove needs gas to burn (I only have one off the top of my head, sorry :/)
6 0
3 years ago
two critical requirements must be met before light elements, like hydrogen or helium, will fuse and form heavier elements. The t
svlad2 [7]
I had to look for the options and here is my answer:
The two requirements for nuclear fusion that are needed to be met in order for the elements hydrogen and helium fuse to make heavier elements are extremely high temperatures and density. Hope this helps.
4 0
3 years ago
Read 2 more answers
Suppose a 10.0 mL sample of an unknown
mote1985 [20]

The concentration of HCl is equal to 2.54mol/L.

<h3>Mole calculation</h3>

To solve this question, one must use the molarity calculation, which corresponds to the following expression:

                                               M = \frac{mol}{v}

Thus, to find the molarity of the sample, the following calculations must be performed:

V_f = 10ml + 625ml = > 635ml

                                              \frac{0.004mol}{xmol} =\frac{1000ml}{635ml}

                                                 x = 0.00254 mol

So, 0.00254 moles were added per 10ml, so we can do:

                                              \frac{0.00254mol}{xmol}= \frac{10ml}{1000ml}  \\x = 2.54mol/L

So, the concentration of HCl is equal to 2.54mol/L.

Learn more about mole calculation in: brainly.com/question/2845237

6 0
2 years ago
5. A beam of photons with a minimum energy of 222 kJ/mol can eject electrons from a potassium surface. Estimate the range of wav
torisob [31]

Answer: The range of wavelengths of light that can be used to cause given phenomenon is 8.953 \times 10^{21} m.

Explanation:

Given: 222 kJ/mol (1 kJ = 1000 J) = 222000 J

Formula used is as follows.

E = \frac{hc}{\lambda}

where,

E = energy

h = Planck's constant = 6.625 \times 10^{-25} Js

c = speed of light = 3 \times 10^{8} m/s

Substitute the values into above formula as follows.

E = \frac{hc}{\lambda}\\222000 J = \frac{6.625  \times 10^{-34}Js \times 3 \times 10^{8} m/s}{\lambda}\\\lambda = 8.953 \times 10^{21} m

Thus, we can conclude that the range of wavelengths of light that can be used to cause given phenomenon is 8.953 \times 10^{21} m.

7 0
3 years ago
30) Which of these statements are true?
Katen [24]
D) 1 and 4
Chromosomes are made up of DNA. DNA strands contain short segments called genes.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which is larger, 51.5 decigrams or 51,500 decigrams
    5·1 answer
  • 1#
    5·1 answer
  • I don’t know how to do this please help
    8·1 answer
  • What's Meso compounds? Please explain it to me with an appropriate example. I'll mark you as Brainliest ​
    5·1 answer
  • What are two types of a behavioral adaptation<br><br><br><br>​
    9·1 answer
  • Rank the following atoms in order of increasing electronegativity.a. Se, O, S b. P, Na, Cl c. Cl, S, F d. O, P, N
    11·1 answer
  • What are two things that characterize the practice of science
    8·1 answer
  • If 100mL was diluted of a 2.0 M solution of sodium chloride by adding an additional 100 mL of water, what would the new molarity
    11·1 answer
  • How do sound waves travel? PLEASE HELP IF YOU WANT BRAINLEIST AND ME TO LIKE URE COMMENT!!
    14·1 answer
  • Is air homogeneous or heterogeneous?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!