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
masya89 [10]
3 years ago
8

If u burn paper in the jar, is it the same mass as before u burn it or less or more. And why.

Chemistry
2 answers:
gtnhenbr [62]3 years ago
4 0

Answer: The total mass before and after burning is the same

Explanation: When the carbon and hydrogen of the hydrocarbon-containing substance (the paper) chemically combine with the oxygen, the remaining materials may appear as ash, the solid remains of a fire.

hope this helps

plz mark brainliest

Leviafan [203]3 years ago
3 0

Answer:

the mass would not be the same because of the ashes in the jar

Explanation:

You might be interested in
The length of a year is equivalent to the time it takes for one.. (pls help I honestly forgot )
Ainat [17]
For one complete orbit of the earth around the sun
8 0
3 years ago
Compare the electronegativity of H and O in the polar covalent bonds of a water
ExtremeBDS [4]

Answer:

The O atom will tend to attract the electrons.

Explanation:

The electronegativity of O (3.5) is much higher than H (2.1), which means it is more likely to attract electrons. The higher the electronegativity, the more attractive.

7 0
3 years ago
What is the ph of 0.450 m al(no3)3 [ka for al3+(aq) = 1.00x10-5]? express your answer to two decimal places?
White raven [17]

Answer : The pH of the solution is, 2.67

Explanation :

The equilibrium chemical reaction is:

                           Al^{3+}+H_2O\rightarrow Al(OH)^{2+}+H^+

Initial conc.       0.450                   0               0

At eqm.           (0.450-x)                 x               x

As we are given:

K_a=1.00\times 10^{-5}

The expression for equilibrium constant is:

K_a=\frac{(x)\times (x)}{(0.450-x)}

Now put all the given values in this expression, we get:

1.00\times 10^{-5}=\frac{(x)\times (x)}{(0.450-x)}

x=0.00212M

The concentration of H^+ = x = 0.00212 M

Now we have to calculate the pH of solution.

pH=-\log [H^+]

pH=-\log (0.00212)

pH=2.67

Therefore, the pH of the solution is, 2.67

8 0
4 years ago
You were making a cream based sauce for your pasta and decided to add some freshly canned tomatoes to the sauce. It tasted fine,
soldier1979 [14.2K]

Answer & explanation:

Canned fruits and vegetables generally have a high acidity and salinity content, in order to prevent the product from spoiling, in addition to enhancing its flavor.

The cream-based sauce started to curdle due to the acidity present in the canned tomatoes.

By lowering the pH of dairy products, a protein in them called casein begins to clot. It is this clotting of the casein that causes the cream-based sauce to curdle.

7 0
3 years ago
How do scientists think that gravity affected the formation of our solar system?
Makovka662 [10]
Maybe because gravity has control of each formation of the solarsydtem thats why its just a guess
5 0
3 years ago
Other questions:
  • The energy from nuclear fission is potentially limitless but production is restricted by the limited availability of
    11·1 answer
  • How many atoms are in 3.50 moles of calcium (ca)?
    13·1 answer
  • What is an isotope? a. A form of an element with a different number of electrons c. A form of an atom with a different amount of
    9·1 answer
  • Athe gas that siports burning is
    5·1 answer
  • Which is a strong base? HCl NaOH NH3 H3CO3
    8·1 answer
  • PLEASE PLEAS HELP Which of the following compounds is insoluble in water?
    9·1 answer
  • 3. Una piedra que se tira verticalmente hacia arriba se mueve según la
    12·1 answer
  • Which statement correctly describes cellular respiration
    8·1 answer
  • Two different recording stations have found that they had the same value for ΔT after an earthquake. If this is all the informat
    12·1 answer
  • Identify the independent /manipulated variable
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!