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Kobotan [32]
4 years ago
13

When energy is converted from one form into another, ________ is lost at every step along the way.

Chemistry
1 answer:
9966 [12]4 years ago
4 0
When energy is converted from one form into another, heat is lost at every sept along the way.

a. heat.
You might be interested in
Why are all of the substances on the periodic table classified as elements?
natta225 [31]

Because just like compounds, the table of chemicals can be looked at as having all the different pieces of it.  So the different chemicals are the different "elements" to the periodic table.

6 0
3 years ago
A sunscreen preparation contains 2.50% benzyl salicylate by mass. If a tube contains 4.0 oz
antoniya [11.8K]

About 0.92 kg of benzyl salicylate would be needed in order to manufacture 325 tubes of sunscreen.

A tube contains 4.0 oz of the sunscreen and each one 2.5% benzyl salicylate.

         2.5% of 4.0 oz = 0.1 oz

Thus, each tube would need 0.1 oz of benzyl salicylate.

325 tubes of the sunscreen is needed and each one requires 0.1 oz of benzyl salicylate. Hence, total amount of benzyl salicylate needed would be:

    325 x 0.1 oz = 32.5 oz

From conversion:

16 oz = 1 lb

Hence,

32.5 oz = 32.5/16

                        = 2.03 lb

Also:

2.205 lb = 1 kg

2.03 lb = 2.03/2.205

             = 0.92 kg

More on dimensional analysis can be found here: brainly.com/question/22015862

6 0
3 years ago
The student plans to conduct a spectrophotometric analysis to determine the concentration of Cu2+(aq) in a solution. The solutio
Lelechka [254]

Answer:

The wavelength the student should use is 700 nm.

Explanation:

Attached below you can find the diagram I found for this question elsewhere.

Because the idea is to minimize the interference of the Co⁺²(aq) species, we should <u>choose a wavelength in which its absorbance is minimum</u>.

At 400 nm Co⁺²(aq) shows no absorbance, however neither does Cu⁺²(aq). While at 700 nm Co⁺²(aq) shows no absorbance and Cu⁺²(aq) does.

6 0
3 years ago
When barium chloride reacts with potassium sulfate, barium sulfate and potassium chloride arc produced. The balanced equation fo
expeople1 [14]

Answer:

Ratio between the reactants is 1:1, so if 2 moles of potassium sulfate react, The reaction consumes 2 moles of barium chloride

The reaction produces 2 moles of barium sulfate ( ratio is 1:1) and 4 moles of potassium chloride. (Ratio with this is 2:4)

Explanation:

This is the reaction:

BaCl₂(aq) + K₂SO₄(aq) → BaSO₄(s) + 2KCl(aq)

Ratio between the reactants is 1:1, so if 2 moles of potassium sulfate react, The reaction consumes 2 moles of barium chloride

The reaction produces 2 moles of barium sulfate ( ratio is 1:1) and 4 moles of potassium chloride. (Ratio with this is 2:4)

6 0
3 years ago
Read 2 more answers
2. Fill in the blanks with an example of each type of matter,
Korvikt [17]

Explanation:

Matter- gas

Substance-o2

Mixture-sugar and water

Compound-BeCl2

Element-Mg

6 0
4 years ago
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