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goldfiish [28.3K]
4 years ago
15

Rubbing alcohol is a solution of 70 percent alcohol and 30 percent water. in the alcohol solution which is the solute and which

is the solvent
Chemistry
1 answer:
jolli1 [7]4 years ago
6 0
Water: solute
alcohol: solvent

solution: a uniform mixture that has a solvent and at least one solute
solvent: the part of the solution with the largest amt
solute: the substance that is dissolved in a solution
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What are the FOUR major biogeochemical cycles upon which all life depends?
Doss [256]

Answer:

Some of the major biogeochemical cycles are as follows: (1) Water Cycle or Hydrologic Cycle (2) Carbon-Cycle (3) Nitrogen Cycle (4) Oxygen Cycle. The producers of an ecosystem take up several basic inorganic nutrients from their non-living environment.

Explanation:

8 0
3 years ago
Which Ions oxidize aluminum?<br><br> Li^+, Ca^2+, Ag+, Sn^2+
pishuonlain [190]

Aluminum can be oxidized by Li^{+} and Ca^{2+}

<h3>What is oxidizing?</h3>

Some of the metal corrodes (or oxidizes) and forms the corresponding metal oxide on the surface as a result of a chemical reaction between the metal surface and the oxygen in the air. The corrosion products that occur in some metals, like steel, are highly apparent and loose.

According to reactivity series (The array of metals in the descending order of their reactivities is referred to as the metals' reactivity series. It is sometimes referred to as the metals in the activity series.)

Lithium and calcium ions are more reactive than aluminum ion and they are less electronegative.

Since silver and tin are more electronegative than aluminum so, they cannot oxidize aluminum.

∴ Li^{+} and Ca^{+2} ions can oxidize aluminum.

Learn more about electronegativity here brainly.com/question/16446391

#SPJ10

8 0
2 years ago
Calculate the pressure exerted on the floor when an elephant who weighs 2400 N
Inessa05 [86]

Answer:

The answer is

<h3>6000 N/m² or 6000 Pa</h3>

Explanation:

The pressure exerted by an object given the force of the object and the area can be found by using the formula

P =  \frac{f}{a}  \\

where

P is the pressure

f is the force

a is the area

From the question

f = 2400 N

a = 0.4 m²

So we have

P =  \frac{2400}{0.4}  \\

We have the final answer as

<h3>6000 N/m² or 6000 Pa</h3>

Hope this helps you

8 0
3 years ago
Hello there, in my biology class, we did a bacteria milk lab and my group added yeast to the milk in a test tube for three diffe
12345 [234]

The standard plate count is used to determine the total number of bacteria present in a specified amount of milk, usually a milliliter (mL). This is used for the grading of milk. The coliform plate count is widely used to determine the total number of coliforms present in one mL of milk sample.

8 0
3 years ago
An analysis of a sugar compound is found to contain 132 grams of carbon (C), 22 grams of hydrogen (H), and 176 grams of oxygen (
ddd [48]
132 g of C  ,   22 g of H   , 176 g of O

132 + 22 + 176 => 330 g <span>of the substance

</span>Now convert the masses in <span>moles :
</span>
C = 12.0 u        H = 1.0 u       O = 16.0 u

C = 132 / 12.0 => 11 moles

H = 22 / 1.0 => 22 moles

O = 176 / 16.0 => 11 moles

Using the values obtained the lowest proportion in mols of elements present, simply divide the values found for the least of them<span>:
</span>
C = 11 / 11 => 1

H = 22 / 11 => 2

O = 11 / 11 => 1

 formula empirically <span>is : CH</span>₂O

hope this helps!


8 0
4 years ago
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