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Anon25 [30]
3 years ago
7

Which best evaluates the following statement: It's greener to wash dishes by hand than to use a dishwasher?

Chemistry
1 answer:
Volgvan3 years ago
3 0

<span>It is true that energy efficient dishwasher is a water and energy saver than washing dishes by hand. A star-rated dishwasher uses 4 gallons of water in each cycle compare to a kitchen faucets who pumps out 2.5 gallons of water per minute. To conserve water, the accumulated dishes and cookware must be stack properly in a dishwasher before running a cycle. As to conservation of energy, people tend to use warm water to wash the dishes by hand and heating of water cost much, while in a dishwasher, energy-saving tips such as running a light cycle and turning off heating drying option will mark down your energy consumption. Therefore, the use of dishwasher is a much greener idea. </span>

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If 97.7 ml of silver nitrate solution reacts with excess potassium chloride solution to yield 0.326 g of precipitate, what is th
BlackZzzverrR [31]

The complete balanced chemical reaction is written as:

AgNO3 + KCl ---> AgCl + KNO3 

where AgCl is our precipitate

 

So calculating for moles of AgCl produced: MM AgCl = 143.5 g/mol

moles AgCl = 0.326 g / (143.5 g/mol) = 2.27 x 10^-3 mol

we see that there is 1 mole of Ag per 1 mole of AgCl so:

moles Ag = 2.27 x 10^-3 mol

 

The molarity is simply the ratio of number of moles over volume in Liters, therefore:

Molarity = 2.27 x 10^-3 mol / 0.0977 L

<span>Molarity = 0.0233 M</span>

4 0
3 years ago
WHAT ARE SOME POSSIBLE CONSEQUENCES IF A HUMAN BODY DOES NOT MAINTAIN<br> HOMEOSTASIS
BARSIC [14]

Answer: If homeostasis is disrupted, it must be controlled or a disease/disorder may result.

Explanation: What happens if there's disruption? Your body systems work together to maintain balance. If that balance is shifted or disrupted and homeostasis is not maintained, the results may not allow normal functioning of the organism.

7 0
2 years ago
Read 2 more answers
liv sheldon Given the balanced equation for an organic reaction: C2H2 + 2Cl2 → C2H2Cl4 This reaction is best classified as *
Afina-wow [57]

Answer:

An addition reaction

Step-by-step explanation:

In an addition reaction, two or more molecules come together to form a single product, for example,

C₂H₂ + 2Cl₂ ⟶ C₂H₂Cl₄

This reaction consists of two successive additions. The product of the first reaction becomes a reactant and adds a second molecule of Cl₂ to form C₂H₂Cl₄

    C₂H₂ + Cl₂ ⟶ <em>C₂H₂Cl₂ </em>

<em><u>C₂H₂Cl₂</u></em><u> + Cl₂ ⟶ C₂H₂Cl₄ </u>

 C₂H₂ + 2Cl₂ ⟶ C₂H₂Cl₄

4 0
3 years ago
Each type of mineral has a chemical composition that is
Rus_ich [418]
Answer: C. variable depending on where its found

The chemical compositions of minerals is very necessary in order to define or describe a certain mineral. Some minerals can be written in simple chemical formula while others are also written in complicated chemical formulas.

7 0
3 years ago
There is 321 grams of H2SO4, how many molecules is this?
Ivenika [448]

Answer:

The original number of oxygen atoms was about 80 times larger than Avogadro's number. Since each sulfuric acid molecule contains 4 oxygen atoms, there are about 20 moles of sulfuric acid molecules.

3 0
2 years ago
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