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
Wittaler [7]
3 years ago
10

How much heat is liberated when 40 gram H, gas react with excess O2 gas

Chemistry
1 answer:
Pavel [41]3 years ago
8 0

Answer:wqqqqqqqqqqqqqqgqr

wr

Explanation:

qbqg4

You might be interested in
Two sealed flasks each have a volume of 2.0 liters. Flask A contains N, O gas and Flask B contains H, gas both at 1
barxatty [35]

Answer:

Each gas have same number of molecules.

Explanation:

According to Avogadro law,

Equal volume of all the gases at same temperature and pressure have equal number of molecules.

Mathematical expression:

V ∝ n

V = Kn

V/n = K

k = constant

V = volume of gas

n = number of moles of gas

when volume change is changed from v1 to v2 and number of moles from n1 to n2 this law can be written as,

V1 / n1 = V2 /n2

This state that by increasing the number of moles of gas volume also goes to increase.

4 0
3 years ago
n the periodic table, the atomic mass of oxygen is listed as 15.9994 amu. Based on this, one can deduce that the most common ___
Anit [1.1K]
Isotope- variation of an element

Sixteen- atomic number of oxygen
4 0
3 years ago
Read 2 more answers
Karla added green pellets to a container of water before she began watering her lawn. What correctly describes
kvv77 [185]

The correct answer is C. The water is the solvent because the green pellets dissolved in it.

Explanation:

In solutions, the are two substances involved, the solvent and the solute. The solvent is usually a liquid substance; additionally, the solvent dissolves another substance, which is known as the solute. For example, if you dissolve a spoon of salt in a glass of water, the solute is the salt which is the substance dissolved and the solvent is the water because the solute is dissolved in it. According to this, in the case presented the water is the solvent because the green pellets which are the solute dissolve in it.

5 0
3 years ago
What was Thomson's model of the atom called?
trasher [3.6K]
The answer is C: The plum-pudding model
3 0
3 years ago
In an area in which electricity costs 8 cents/kilowatt-hour, a 5 kW clothes dryer runs for 90 minutes to dry a load of laundry.
Orlov [11]
90 minutes is 1.5 hours.

5 kW * 1.5 hours = 7.5 kWh

8c/kWh * 7.5 kWh = 60 cents
4 0
3 years ago
Other questions:
  • A solution is made by mixing 31 g of heptane C7H16 and 42 g of chloroform CHCl3.
    14·2 answers
  • What are two different kinds of rock that are easily weathered by carbonic acid?
    10·1 answer
  • Is a bag of different colored jelly beans a solution or a mixture
    11·2 answers
  • Hg2I2(s) ⇄ Hg2 2+(aq) + 2 I−(aq) Ksp = [Hg2 2+][I−]^2 A saturated solution of Hg2I2 is at equilibrium at 25°C as represented by
    8·1 answer
  • Heather mixes two white liquids together. Immediately, a gray liquid forms.
    14·1 answer
  • What is the difference between a cation and an anion?
    6·1 answer
  • A general term for a chemical which accelerates a reaction without becoming chemically involved is called a catalyst. true false
    11·2 answers
  • Symbols used in equations, together with the explanations of the symbols, are shown below. which set is correct?
    12·2 answers
  • Rutherford's alpha particle scattering experiment was responsible for the discovery of​
    15·1 answer
  • What are the controlled variables for water of crystallization experiment?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!