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mrs_skeptik [129]
3 years ago
10

A highly concentrated solution from which dilutions are typically made for laboratory used is called a what?

Chemistry
1 answer:
Komok [63]3 years ago
4 0
A stock solution is the most concentrated
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Which statements describe elements?
monitta

Answer: B,C,D

Explanation: Who ever reads this have a great day and stay safe :}

8 0
3 years ago
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Question 5 (1 point)
Marianna [84]

Answer:

P=12.16 atm

Explanation:

Using the formula of ideal gas law:

PV = nRT

P= nRT/V

 n= number of moles

 R= Avogadro constant = 0.0821

 T= Temperature in K => ºC + 273.15 K

P= (1.50 moles)(0.0821)( 296.15 K)/ 3.00L

P= 12.15

7 0
3 years ago
Plzzzzz help me to solve this question.​
aleksklad [387]

Answer:

Explanation:

A1. Chemical indicator, any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow, which imparts a yellow colour to an alkaline solution.

A2. The reaction of an acid with a base is called a neutralization reaction. The products of this reaction are a salt and water. ... For example, the reaction of hydrochloric acid, HCl, with sodium hydroxide, NaOH, solutions produces a solution of sodium chloride, NaCl, and some additional water molecules

A3. Methyl orange has the property to color alkaline and neutral water yellow. If the water becomes acidic, it turns red immediately.

3 0
3 years ago
Which of the following changes requires an oxidizing agent?
KatRina [158]
2F⁻ → F₂ + 2e⁻

(mainly electrochemical oxidation)
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3 years ago
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Which of the following is not an example of a biological polymer?
Blababa [14]

Answer

Omega-3 fatty acid

Explanation:

The monomers are small units or molecules which join with each other end in a huge to end and give rise to the polymers.

DNA and albumin:

If we talk about albumin it is a protein which is present in eggs. All proteins are made up of monomers of amino acids. Similarly, DNA is also a polymer because it is made up hundreds and thousands of small monomeric units called nucleotides.

glycogen:

It is also a biological polymer where several monomer units of glucose  are joined together through alpha acetal linkages.

Omega-3 fatty acid:

It is not a polymer. Its a group of fatty acids that contain  a double bond at carbon of 3rd position from one end of the carbon chain that was initiated from methyl group and contains one carboxyl group located at the other molecular end. For example: Alpha-Linelenic acid.

Therefore, Omega-3 fatty acid is the right option.

Hope it helps!

6 0
3 years ago
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