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
9966 [12]
2 years ago
13

Can the ratio of hydrogen to oxygen change if a solute is dissolved in the water

Chemistry
1 answer:
coldgirl [10]2 years ago
4 0

Answer:

Water molecules feature the combinations of hydrogen and oxygen atoms in a 2:1 ratio. Since they are present in a fixed ratio of mass, water molecules obey the law of constant proportions. Water is formed when two molecules of the diatomic hydrogen gas, combine with one molecule of the diatomic oxygen gas to produce two molecules of water

You might be interested in
The nation on average uses around 10 Million tons of salt per year to de-ice roads. How many kilograms of salt is this? (please
Westkost [7]
45359237 kilograms :))))))))))
3 0
3 years ago
Use Hess's Law to calculate the enthalpy change for the reaction
Marysya12 [62]

Answer:

ΔH = 125.94kJ

Explanation:

It is possible to make algebraic sum of reactions to obtain ΔH of reactions (Hess's law). In the problem:

1. 2W(s) + 3O2(g) → 2WO3(s) ΔH = -1685.4 kJ

2. 2H2(g) + O2(g) → 2H2O(g) ΔH = -477.84 kJ

-1/2 (1):

WO3(s) → W(s) + 3/2O2(g) ΔH = 842.7kJ

3/2 (2):

3H2(g) + 3/2O2(g) → 3H2O(g) ΔH = -716.76kJ

The sum of  last both reactions:

WO3(s) + 3H2(g) → W(s) + 3H2O(g)

ΔH = 842.7kJ -716.76kJ

<h3>ΔH = 125.94kJ </h3>
3 0
3 years ago
When 1.82 moles of HCL reacts with excess MnO2, how many moles of Cl2 form
s2008m [1.1K]

The balanced reaction is:<span>

MnO2(s) + 4HCl(aq) → Cl2(g) + MnCl2(aq) + 2H2O(l)

We are given the amount of hydrochloric acid to be used for the reaction. This will be the starting point for the calculations.

1.82 mol HCl ( 1 mol Cl2 / 4 mol HCl) = 0.46 mol Cl2

<span>Therefore, 0.46 mol of chlorine gas is produced for the reaction of hydrochloric acid and manganese oxide.</span></span>

5 0
3 years ago
Read 2 more answers
WILL GIVE POINTS/MARK BRAINLIST! Question 6: Types of Molecular Shapes (3 points) Identify the following molecular shapes. (0.5
Vanyuwa [196]

Answer:

A. tetrahedral

B. angular or bent

C. angular

D. trigonal planar

E. linear

F. linear

Explanation:

8 0
2 years ago
What are the benefits of a model to demonstrate the atomic theory?
Norma-Jean [14]

Answer:

Atomic models are important because, they help us visualize the interior of atoms and molecules, and thereby predicting properties of matter.

Explanation:

We study the various atomic models in our course of study because, it is important for us to know, how did people come to the present concept of an atom. How did physics evolve from classical to quantum physics.

All these are important for us to know and thus, knowledge about various atomic models, their discoveries and drawbacks and finally improvements based on scientific evidence present at that time is important for us to understand the underlying theory very well.

8 0
3 years ago
Other questions:
  • Atoms like sodium and lithium often lose electrons, which makes them
    9·2 answers
  • What is −1/4⋅(−6/11)?
    12·1 answer
  • The total mass of the protons in an atom of gold-198 is approximately
    6·1 answer
  • What is the weight of a 30.0 kg object?<br> 3.0 N<br> 300 N<br> 6.8 N<br> 132 N
    10·2 answers
  • 3 A specific amount of energy is emitted when excited electrons in an atom in a sample of an element return to the ground state.
    5·1 answer
  • HELP!! Can someone help with the numbers 1-5
    6·1 answer
  • How many moles of Na2SO4, are produced from 7.00 moles of (NH4)2SO4?
    12·1 answer
  • For the reaction H2PO4- HAsO4 2-HPO4 2-+H2AsO4- <br> what species are a conjugate acid-base pair?
    12·2 answers
  • What is the dependent variable for "how does changing your laundry detergent affect how clean your clothes are?"
    12·1 answer
  • Acetone has the formula C3H6O. The empirical formula of vitamin C is _______.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!