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
Luba_88 [7]
3 years ago
5

PLEASE HELP ASAP

Chemistry
1 answer:
Kruka [31]3 years ago
4 0

The mass stays constant as a substance changes from a liquid to a gas.  

The Law of Conservation of Mass states that, in ordinary chemical reactions, mass is neither destroyed nor created.


That is, the mass of the reactants must equal the mass of the products.


2H₂O(ℓ) ⟶ 2H₂O(g)


   1 g              1 g


If the mass of liquid water is 1 g, the mass of the water vapour must be 1 g.


Even though the water vapour is a gas and you can’t see it, it still has a mass

of 1 g.



You might be interested in
1) According to Bohr's model of the atom, in which orbitals do electrons have the most energy?
Alex Ar [27]

The orbitals closest to the nucleus is the orbital wih the lowest energy. This is according to the basic rules stating that the energy of the shells as its principal quantum number increases, also increases. Thus the answer in 1 is B. Valence electrons are found in the outermost electron shell, on the other hand. 
7 0
3 years ago
Read 2 more answers
As refrigerant passes through the expansion valve, it cools down or heats up?
Yuri [45]
It cools down i am 100 percent sure it cools down
5 0
3 years ago
Read 2 more answers
1. What trends do you see when considering total electrons, valence electrons (highest occupied energy level/outermost level ele
NNADVOKAT [17]
ELECTRON CONFIGURATION

Highest occupied energy level of an element

equal to the period 
for example, the highest occupied energy level of He is 1, Be is 2, Al is 3, Ca is 4, and Sn is 5
6 0
3 years ago
Read 2 more answers
Calculate the volume, in milliliters, for the following:
fredd [130]

Answer: The volume for 0.850 mol of NaNO_{3} from a NaNO_{3} solution is 1700 mL.

The volume of 30.0 g of LiOH from a 2.70 M LiOH solution is 464 mL.

Explanation:

Molarity is the number of moles of solute present in a liter of solution.

  • As given moles of NaNO_{3} are 0.850 mol and molarity of NaNO_{3} solution is 0.5 M. Hence, its volume is calculated as follows.

Molarity = \frac{no. of moles}{Volume (in L)}\\0.5 M = \frac{0.850 mol}{Volume}\\Volume = 1.7 L (1 L = 1000 mL)\\= 1700 mL

Therefore, the volume for 0.850 mol of NaNO_{3} from a NaNO_{3} solution is 1700 mL.

  • As given mass of LiOH are 30.0 g from a 2.70 M LiOH (molar mass = 23.95 g/mol) solution. Hence, its number of moles are calculated as follows.

No. of moles = \frac{mass}{molar mass}\\= \frac{30.0 g}{23.95 g/mol}\\= 1.25 mol

So, volume for LiOH solution is calculated as follows.

Molarity = \frac{no. of moles}{Volume (in L)}\\2.70 M = \frac{1.25}{Volume}\\Volume = 0.464 L (1 L = 1000 mL)\\= 464 mL

Therefore, volume of 30.0 g of LiOH from a 2.70 M LiOH solution is 464 mL.

6 0
3 years ago
A certain shell is known to have a total of 16 orbitals. which shell is it?
Leya [2.2K]
N=4, that is the answer. Hope this helps!!
3 0
3 years ago
Other questions:
  • The standard on which the atomic mass unit is based is the mass of a
    10·1 answer
  • How many grams of O2(g) are needed to completely burn 15.6 g of C3H8(g)?
    7·1 answer
  • Question 4
    11·1 answer
  • Brainlist for best answer!!! <br> Why will the whole ecosystem be affected by just one change?
    15·2 answers
  • The higher the pH, the less acidic the solution
    15·2 answers
  • Los elementos están ordenados en la tabla periódica de acuerdo a​
    12·1 answer
  • How does the number of coupons you use affect the amount of money you save?
    5·1 answer
  • define unit cell and explain why the unit cell will always crystallize from solution or break into the same shape
    12·1 answer
  • A sample of radioactive waste has a half-live of 40 years and an activity level of 4 curies. After how many years will the activ
    9·1 answer
  • Write a word equation for the following reactions. You must indicate whether each substance is a solid, liquid, gas, or solution
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!