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
quester [9]
4 years ago
10

Need someone to answer this question as soon as possible

Chemistry
1 answer:
denpristay [2]4 years ago
8 0
Student C: The total mass before and after the reaction is the same.
You might be interested in
IF A CAPPED GLASS BOTTLE IS THROWN INTO A FIRE, WHAT WILL HAPPEN TO THE BOTTLE AND WHY?​
ArbitrLikvidat [17]

Answer:

it will explode (not intensely) there is some oxygen in the bottle so the cap would pop off violently, the longer it stays in the fire the more energy is being pent up.

Explanation:

8 0
3 years ago
Read 2 more answers
The density of 300 mL of water was determined, and then 15 grams of sodium nitrate was dissolved in the water. The student deter
xxMikexx [17]

Answer:

the sodium nitrate in this investigation is

a) the solute

b) undergoing chemical change

<h3>Explanation:</h3>

generally, solute is the substance which is added in solvent.

The substance which is taken in relatively more volume is the solvent.

so, here sodium nitrate (NaNO₃) is the solute which is dissolved in water (H₂O) , which is solvent.

The reaction between them is :

NaNO₃ + H₂O ⇒ Na⁺ (aq) + NO₃⁻ (aq) ;     (aq) denotes aqueous;

so, here sodium nitrate undergoes chemical change into aqueous sodium ions(Na⁺) and aqueous nitrate ions(NO₃⁻).

3 0
4 years ago
The formula for acetic acid is CH3COOH. Seana wants to know how many oxygen atoms are in 0.12 moles of acetic acid. O a. 1x 10^2
MA_775_DIABLO [31]

Answer:

c. 1.4 x 10²³ oxygen atoms

Explanation:

The number of oxygen atoms in one molecule of CH₃COOH is 2.

Avogadro's constant relates the number of molecules in one mole:

6.022 × 10²³ mol⁻¹

Thus, the number of oxygen atoms in one molecule of acetic acid can be converted to the number of oxygen atoms in one mole of acetic acid:

(2 oxygen atoms / molecule)(6.022 × 10²³ molecule / mol) = 1.204 x 10²⁴ atoms per mole

Finally, the number of oxygen atoms in 0.12 moles of acetic acid are calculated:

(1.204 x 10²⁴ atoms / mol)(0.12 mol) = 1.4 x 10²³ atoms/mol

6 0
3 years ago
Which statements about thermal energy are true? Choose all answers that are correct. A. Temperature is a measure of the average
Alekssandra [29.7K]
The answers that are correct are a, b, and d
3 0
3 years ago
a minute sample of AlCl3 is analyzed for chlorine.The analysis reveal that there are 12 chloride ions present in the sample. How
nekit [7.7K]
You can solve this by saying that there are 3 Cl for every 1 Al therefore a ratio of 1:3. If you have 12 Cl ions you can find how many Al ions there is
so (x)Al : 12 a unkown amount of Al ions gives you 12 Al ions from the ratio we know that we have 1 Al for 3 Cl therefore we can divide 12 by 3 to get the number of Al ions. The answer is 4 Al ions for 12 Cl ions.
Hope this helps :).
7 0
3 years ago
Other questions:
  • A student puts a glass of water in the freezer. Later, he notices ice forming on the surface of the water. Which property of wat
    10·1 answer
  • Please help! The Michael reaction is a conjugate addition reaction between a stable nucleophilic enolate ion (the donor) and an
    10·1 answer
  • Who would most likely be required to work with sodium hydroxide?
    13·2 answers
  • In his science class, Mr. Brown heats a small amount of iodine in a test tube. The iodine changes into a pink gas without changi
    11·2 answers
  • Abigail obtained 18.9 grams of calcium carbonate after performing a reaction. From her calculations, she knew she should have ob
    14·1 answer
  • How many moles of Na3PO4 are in 820. grams of it?
    10·1 answer
  • What mass of oxygen is needed for the complete combustion of 1.60-10^-3
    8·1 answer
  • Two balloons are given an electrostatic charge by rubbing them with a wool cloth. Which observation provides evidence of the for
    9·1 answer
  • 66gg63h3tt5hh3y576j6uju6rjrjyujuj667j56uj6
    8·2 answers
  • A teacher rubbed a match against a piece of sandpaper. The match started to burn. Which statement best describes the energy chan
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!