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
IgorLugansk [536]
3 years ago
11

which of the following is the most wasteful use of water? taking a shower rather than a bath watering the garden with recycled w

ater running dishwashers before they are completely full replacing high-flow showerheads with low-flow showerheads
Chemistry
2 answers:
kvasek [131]3 years ago
5 0
Water running dish washer
defon3 years ago
3 0

Answer: Option (c) is the correct answer.

Explanation:

Wasteful use of water means using water unnecessarily or without any need.

So, when we take a shower rather than a bath then it means we are using water for bathing and not wasting it.

Watering the garden with recycled water is also not wasting of water as we are reusing the used water.

Running dishwashers before they are completely full is a wastage of water because unless the dishwashers are not completely full the water will flow out and it is a wastage of water.

When we replace high-flow shower heads with low-flow shower heads then it means we are minimizing the flow of water and it is a conservation of water.

Therefore, we can conclude that out of the given options running dishwashers before they are completely full is the most wasteful use of water.

You might be interested in
What is the chemical formula of sodium azide?
Hunter-Best [27]
NaN₃ is the chemical formula for Sodium Azide
3 0
3 years ago
Which answer tells the reason the earth’s climate is getting warmer?
Soloha48 [4]
Driving cars gives off gases that trap heat in the atmosphere
5 0
3 years ago
Read 2 more answers
Why is a homogeneous mixture not considered a pure substance? Question 6 options: A pure substance can be separated by physical
krok68 [10]

1. Why is a homogeneous mixture not considered a pure substance?

<u><em>Answer:</em></u>

  • A pure substance can be separated by chemical means, while a mixture can be separated by physical means.

2. What is true if mass is conserved in a reaction?

<em><u>Answer:</u></em>

  • There are equal numbers of atoms on both sides.

3. <em>Methane reacts with oxygen then what are the products?</em>

<u><em>Answer:</em></u>

  • carbon dioxide and water

4. Which one of the following is not a homogeneous mixture?

<u><em>Answer:</em></u>

  • vegetable soup

5. The substance is not uniform in appearance and each part of the mixture contains a combination of different ingredients in different ratios.

<u><em>Answer:</em></u>

  • heterogeneous mixtures

6. If a solution is saturated, which of these is true?

<u><em>Answer:</em></u>

  • More solvent can be dissolved

7. Which of these substances are molecules?

<u><em>Answer:</em></u>

  • All compounds are molecules but not all molecules are compounds. Molecular oxygen (O2) and molecular nitrogen (N2) are not compounds because each is composed of a single element. So correct option is 3 and 4.

8. What makes a solution a homogeneous mixture?

<u><em>Answer:</em></u>

  • It is uniform in composition.

9. When a solute is added to a solution, why does it remain homogeneous?

<em>Answer:</em>

  • The solute dissolves.

10. The chemical formula of glucose is C6H12O6, so it is classified as a(n)

<u><em>Answer:</em></u>

  • pure substance.

11. <em>How many chlorine (Cl) atoms would be in 4 molecules of salt (4 NaCl)?</em>

<u><em>Answer:</em></u>

  • 4

12. <em>In a solution of salt and water, which component is the solute?</em>

<u><em>Answer:</em></u>

  • Salt

13. These substances are all   H2O2,   Li , NaCl , O2

<u><em>Answer:</em></u>

  • Pure Substances

14. If you have 5 grams of product after a chemical reaction, how many grams of reactants did you have at the start of the reaction?

<em>Answer:</em>

  • 5

15. What is the difference between a compound and a mixture?

<u><em>Answer:</em></u>

  • A compound is a pure substance, but a mixture is not.

16. A firework exploding would be an example of a(n) ________.

<u><em>Answer:</em></u>

  • Exothermic reaction

17. If Lavoisier heated 100 grams of powdered mercuric oxide to produce 93 grams of liquid mercury, how much oxygen would be released?

Solution

                       2HgO ==> 2Hg + O2

Mass of HgO = 100 g

Molar mass of HgO = 216.59 g/mol

Moles = mass/molar mass = 0.46 moles

From balance chemcial equation

   HgO :  O2

      2  =    1

    0.46 = (1 × 0.46 ) ÷ 2 = 0.23 moles

mass of O2 = moles× molar mass = 0.23 × 32 = 7.36 g

18. Using the Law of Conservation of Matter, determine the number of grams of iron sulfide (FeS) that will be produced in this reaction.

<em><u>Solution</u></em>

                         12g Fe + 64g S → _____ g FeS

  • According to Law of Conservation of Matter, The total mass of reactant is equal to total mass of  product , so the number of grams of iron sulfide (FeS) that will be produced in this reaction as follow.

                              12 + 64 = 76 g of FeS


Hope this Help.

 





3 0
3 years ago
Read 2 more answers
Most of the electricity that is used in everyday life comes from________ current.
melamori03 [73]

Answer:

electric is your answer :)

Explanation:

Edge STEM instruction/assignment perhaps???

8 0
3 years ago
Read 2 more answers
How is stoicheometry used to <br>keep camels alive​
Novay_Z [31]

Answer:

by heart beat camel lives

8 0
3 years ago
Other questions:
  • The following initial rate data are for the reaction of tertiary butyl bromide with hydroxide ion at 55 oC:
    9·1 answer
  • Please HELP I WILL MARK BRAINLY
    11·2 answers
  • Which are factors scientists use to classify orders of soil?
    13·1 answer
  • Does solid melt easily?
    10·1 answer
  • How does a sugar solution become rock candy?
    11·1 answer
  • When energy changes forms there is always some thermal energy that is produced that cannot be used. what type of energy is it?
    6·1 answer
  • In the image below, does Group A or Group B have a stronger gravitational force between the objects in the group? Give one suppo
    8·2 answers
  • 22. Which statement best describes the use of catalytic converters in automobiles?
    8·1 answer
  • Need help with this please thanks
    5·1 answer
  • What happens to a 8 L volume of gas as you love a pressure of 3 atm to 4 atm? Use the correct gas law to determine the new volum
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!