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
andreyandreev [35.5K]
2 years ago
9

Is mass conserved when 40 g of sodium hydroxide undergoes a chemical change during an interaction with 36.5 g of hydrogen chlori

de? Use complete sentences to support your answer by explaining how this can be demonstrated.
Chemistry
1 answer:
vichka [17]2 years ago
6 0
Start by putting the dog in the basket then pick the grass out and play the tree
You might be interested in
A sample of solid NH4NO3 was placed in an evacuated container and then heated so that it decomposed explosively according to the
dybincka [34]

Answer:

Kp is 2.98  (option c.)

Explanation:

The decomposition is:

NH₄NO₃(s) →  N₂O(g) + 2H₂O(g)

Total pressure at equilibrium is 2.72 bar so, in order to determine Kp we need the partial pressure and we only have total pressure.

According to stoichiometry, nitrogen oxide increase by 1, the partial pressure and water vapor, by 2.

Total pressure is: Partial pressure N₂O + Partial pressure H₂O

2.72 bar = X + 2X → X = 2.72 bar / 3 = 0.91 bar

Partial pressure N₂O = 0.91 bar

Partial pressure H₂O = 1.81 bar

We make the expression for Kp = Partial pressure N₂O . (P. pressure H₂O)²

Kp = 0.91 . 1.81² = 2.98

We do not consider the ammonium nitrate, because it is solid

3 0
3 years ago
Read 2 more answers
In part B of my question, I was asked calculate the number of atoms in 0.615 mol of 13C (mass number of this Carbon is 13).
gtnhenbr [62]
Electrons are particles that have a negative charge. Therefore, an element in a neutral state will have the same number of protons and electrons.since the atomic number corresponds to the number of protons. atomic number of carbon is 6, so number of electron is also 6
To find the number of neutrons, you will need to subtract the atomic number from the atomic mass. 
13 - 6 = 7 neutrons
5 0
4 years ago
Read 2 more answers
What is the driving force of energy that causes convections currents to occur?
Agata [3.3K]
Explanation: The heat produced in the interior of the earth is thought to be the driving force behind plate tectonics. That heat creates convections currents that can be observed in volumes of air and liquid is a known fact.

I hope this helps
Have a nice day
3 0
3 years ago
Do these 2 questions for brainest:)
Zarrin [17]

Answer:

element -Lead

atomic number- 82

Symbol- Pb

Mass-207.2

Element- Zinc

Atomic number-30

Symbol- Zn

Mass-65.39

4 0
3 years ago
Read 2 more answers
5,678cm convert to millimeters
kykrilka [37]
1 cm ------------ 10 mm
5,678 cm ------- ? 

5,678 x 10 / 1 => 56,78 mm 
4 0
3 years ago
Other questions:
  • Scientific evidence shows that Earth's diameter, and thus overall size, does.
    5·1 answer
  • Which part of the EM spectrum carry the least amount of energy?
    11·1 answer
  • The mass of a solid copper penny is 3.46 g. how many copper atoms are in the penny?
    9·2 answers
  • The amplitude of a wave is most directly related to what wave characteristic? Crest length
    12·1 answer
  • Assuming that the heat capacities don't change with temperature, how much energy in kilojoules is needed to heat 7.70 g of Hg fr
    14·1 answer
  • I give brainliest pls help
    11·2 answers
  • Which characteristic most likely describes the water in Lake Taal?
    7·1 answer
  • What type of weather forecasting can forecast from 3-7 days? I NEED ANSWERS FAST!!!
    14·1 answer
  • Fe(s) + CuSO4(aq) —> FeSO4(aq) + Cu(s)
    12·1 answer
  • Maalox is the trade name for an antacid and antigas medication used for relief of heartburn, bloating, and acid indigestion. Eac
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!