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
Feliz [49]
3 years ago
9

What is the meaning of a chemical reaction?

Chemistry
2 answers:
Margarita [4]3 years ago
5 0
When you have a chemical reaction, it means something goes wrong with your chemicals.
Margarita [4]3 years ago
4 0
The meaning of a chemical reaction is to experiment with different things so scientist can be safe a help people
You might be interested in
Tell me a funny joke
nasty-shy [4]

Answer:

Explanation:

lol, i tried

dont report, as this is related to math

8 0
2 years ago
Read 2 more answers
Round the answer for the following question to the correct number of significant figures: 38,736 km ÷ 4784 km
uysha [10]

Answer:

Explanation:

38736 ÷ 4784 = 8.097

Sig Figs

4

8.097

Decimals

3

8.097

Scientific Notation

8.097 × 10^0

E-Notation

8.097e+0

Words

eight point zero nine seven

4 0
2 years ago
Fatty acids spread spontaneously on water to form a monomolecular film. A solution containing 0.10 mm^3 of a fatty acid is dropp
lara31 [8.8K]

Divide the volume by the area. Using scientific makes things a bit cleaner.

0.10\,\mathrm{mm}^3 = 10^{-1}\,\mathrm{mm}^3

400.\,\mathrm{cm}^2 = 4\times10^2\,\mathrm{cm}^2

Then

\dfrac{10^{-1} \,\mathrm{mm}^3}{4\times10^2\,\mathrm{cm}^2} \cdot \dfrac{\left(\frac{1\,\rm m}{10^3\,\rm mm}\right)^3}{\left(\frac{1\,\rm m}{10^2\,\rm cm}\right)^2} = \dfrac{10^{-1}\times10^{-9} \,\mathrm m^3}{4\times10^2\times10^{-4}\,\mathrm m^2} = \dfrac{10^{-10}}{4\times10^{-2}}\,\mathrm m \\\\ ~~~~~~~~= 0.25\times10^{-8}\,\mathrm m

Now, 1 m = 10⁹ nm, so

0.25 \times10^{-8}\,\mathrm m \cdot \dfrac{10^9\,\rm nm}{1\,\rm m} = 0.25\times10^1\,\mathrm{nm} = \boxed{2.5\,\rm nm}

8 0
1 year ago
The reaction rate low is independent of which of the following charactetics • Reactor type] • Temperature • Concentration of com
Firlakuza [10]

Answer: In the reaction rate law the rate is expressed in terms of concentrations of species. It is important to know how much time a reaction will take to complete itself. It depends on some factors. Temperature, concentration of component, catalyst and pressure. On increasing these factors the rate of reaction of a respective reaction increases. It doesn't depends upon reactor type.

4 0
3 years ago
A 0.500-l sample of gas is at a pressure of 625 mm hg. what must the pressure be (in atm), at constant temperature, if the volum
Gemiola [76]
Since temperature is held constant; Boyle's law can be expressed as: P 1 * V 1 = P 2 * V 2  
Where P1 = 625 and V1 = 0.5 L 
V2 = 925 * 10^(-3) = 0.925 L and P2 = ? 
So P2 = (P1 * V1)/P2 
P2 = (625 * 0.5)/0.925 
P2 = 337.83 my hg
3 0
3 years ago
Other questions:
  • An ionic bond is _?_
    5·1 answer
  • Which of the following elements has the lowest electronegativity?
    15·2 answers
  • What is physical chemistry?
    5·1 answer
  • How are atoms and elements alike and different?
    13·1 answer
  • Acids are described as corrosive because they a. turn litmus blue. b. taste bitter. c. “eat away” at other materials. d. feel sl
    8·2 answers
  • Which of these characteristics differentiate electrons from protons and neutrons
    15·1 answer
  • What is the concentration of Agt in a 1.2 x 10-4 solution of Ag2CO3? (To write your answer using scientific notation use 1.0E-1
    9·1 answer
  • Which part of the atom is involved in bonding?
    15·1 answer
  • 2. Water is an excellent solvent. With water being a polar
    14·1 answer
  • Help with this worksheet please (24pts)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!