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
Sedaia [141]
3 years ago
14

According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of th

e reactants? A There is no relationship. B The mass of the products is sometimes greater. C The mass of the reactants is greater. D The masses are always equal.
Chemistry
1 answer:
grandymaker [24]3 years ago
6 0
The masses are always equal. Since matter can not be created nor destroyed, you will have the same amount of mass as you did before the reaction as you do after. 
You might be interested in
What does B represent?
Mashutka [201]

Answer: Botanical Acid

Explanation:

8 0
3 years ago
Can sombody pls help me with this​
luda_lava [24]
Wouldn’t it be half of each? For 36 I guess is 18 and 54 will be 27, (NOT SURE)
6 0
3 years ago
A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration o
HACTEHA [7]

Answer:

1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Explanation:

From the question given above, the following were obtained:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Volume of solution = 20.4 mL

Concentration of solution =?

Next, we shall determine the mass of sodium hydroxide, NaOH. This can be obtained as as illustrated below:

Mass of empty cylinder = 9.5 g

Mass Cylinder + NaOH = 31.92 g

Mass of NaOH =?

Mass of NaOH = (Mass Cylinder + NaOH) – (Mass of empty cylinder)

Mass of NaOH = 31.92 – 9.5

Mass of NaOH = 22.42 g

Finally, we shall determine concentration of the solution as follow:

Mass of NaOH = 22.42 g

Volume of solution = 20.4 mL

Concentration of solution =?

Concentration = mass /volume

Concentration of solution = 22.42 / 20.4

Concentration of solution = 1.099 gmL¯¹ ≈ 1.1 gmL¯¹

Therefore, the concentration of the solution is 1.1 gmL¯¹

3 0
4 years ago
Hey um i dont get this yall wont to help me out???
den301095 [7]
3. 9
20. 60 (1hour)
To get to 60 from 20 we multiply by three. 3 times 3 is 9.
A is true
B is true
C is true
D is true
E is false
4 0
4 years ago
When a drawing made with a black marker gets wet, the marker bleeds and more separates into several colors. What method of separ
aleksandr82 [10.1K]

Answer : (4) Chromatography

Explanation :

Chromatography : It is a separation technique of a mixture by passing it through a medium in which components travels at different rates.

There are many types of chromatography but this is paper chromatography.

Paper chromatography : It is used to separate the colored substances. In paper chromatography, water is the mobile phase and paper is the stationary phase. The mixture of components moves at different speeds through the stationary phase so that they can be separated.

In paper chromatography, several colors can be separated based on their solubility. The more soluble a color is, the more readily it will dissolve in mobile phase and farther it will travel.


5 0
3 years ago
Read 2 more answers
Other questions:
  • A roast beef weighs 5.65 kilograms. how many grams does it weigh?
    13·2 answers
  • A 25 liter gas cylinder contains 10 mole of carbon dioxide. Calculate the pressure, in atm, of the gas at 325K.
    11·1 answer
  • Solubility is usually expressed as the maximum number of grams of
    8·1 answer
  • For each of the acid–base reactions, calculate the mass (in grams) of each acid necessary to completely react with and neutraliz
    5·1 answer
  • What is the percentage of s-character in an sp hybrid? O 25% 50% o 75% O 66%
    15·1 answer
  • Which complex ion can exhibit geometric isomerism? Assume that M is the metal ion, A and B are ligands, and the geometry is octa
    10·1 answer
  • What are the two types of numbers in experimental calculations?
    12·1 answer
  • When the reaction shown is correctly balanced, the coefficients are: kclo3 → kcl + o2?
    7·2 answers
  • 2. What is some ways composting can help make our food system more sustainable ?
    12·1 answer
  • Which element has fewer than four dots in its electron dot diagrams?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!