CHEMISTRY HIGH SCHOOL

How does litmus paper identify a base?A base turns red litmus blue.
A base turns blue litmus red.
A base turns orange litmus red.
A base turns yellow litmus blue.

Answers

Answer 1
Answer:

Answer;

A base turns red litmus blue.

Explanation;

Litmus paper is an acid/base indicator that changes color to identify bases and acids.

Red litmus paper is used in chemical laboratories to identify bases. A base is a substance that accepts hydrogen ions (H+) in water. The color of a red litmus paper remains the same under acidic conditions and turns blue under basic conditions.

Blue litmus paper turns red under acidic conditions and remains the same under basic conditions. An acid is a substance that releases hydrogen ions in an aqueous solution. Blue litmus paper is prepared by treating plain paper with lichen-blue litmus. Blue litmus paper is typically used to test acids, such as sulphuric acid, hydrochloric acid, nitric acid, ethanoic acid, citric acid, and vinegar.
Answer 2
Answer:

Answer:

Your answer is A

Explanation:

Related Questions

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How many electrons are in an Fe2+ ion?(1) 24 (3) 28(2) 26 (4) 56
If a solution is made by mixing 50.0 moles of KOH to 3.4 kilograms of water then what is the solutions molality?
In a combustion reaction of C3H8 + 5O2 = 3CO2 + 4H2O, how do you know that the first compounds will produce the nuber of what they did? . Also how do you know that this 2Ca + O2= 2CaO?

Is this a chemical or physical property;

Sandpaper is scratchy

Answers

Physical because you can feel that the Sandpaper is scratchy. 
That is a physical property

A geographical area where plants, animals, the landscape and the climate all interact together is called a(n)environment.
ecosystem.
biome.
food web.

Answers

It's ecosystem :)
noun: eco-systemsa biological community of interacting organisms and their physical environment. 

As a consequence of the discovery of the nucleus by Rutherford, which model of the atom is thought to be true?Protons, electrons, and neutrons are evenly distributed throughout the volume of the atom.
Electrons are distributed around the nucleus and occupy almost all the volume of the atom.
The nucleus is made of electrons and protons.
The nucleus is made of protons, electrons, and neutrons.

Answers

The answer is (B) Electrons are distributed around the nucleus and occupy almost all the volume of the atom.
As a consequence of the discovery of the nuElectrons are distributed around the nucleus and occupy almost all the volume of the atom.cleus by Rutherford, the model of the atom is thought to be true is 

What is the role ofelectrons within an
atom?
A.
Electrons are in the nucleus and have a
negative charge
B. Electrons are in the nucleus and have a
positive charge
C. Electrons are outside the nucleus and
have a negative charge
D. Electrons are outside the nucleus and
have a positive charge

Answers

Option C - Electrons are outside the nucleus and and have a negative charge is the correct alternative.

We have electrons.

We have to determine their role inside the atom.

What are Electrons ?

An electron is one of the subatomic particles within an atom. It is negatively charged particle whose magnitude is 1.6 x 10⁻¹⁹ C.

According to the question -

The role of electrons inside the atom is as follows -

  • Electrons revolve around the nucleus.
  • They carry a negative - charge of  -1.6 x 10⁻¹⁹ C.

Hence, Option C is the correct alternative.

To solve more questions on Atoms, visit the link below-

brainly.com/question/2845051

#SPJ2
The answer would be “C” because electrons are found in the outer layer of an atom, and they are also negatively charged.

True or false: Denaturation of an enzyme increases the rate at which it may catalyze a chemical reaction.

Answers

The answer is False. Hope this helps.

What mass of chloride gas will react with 96.6g of sodium?

Answers

Molar mass :

Cl₂ =  71.0 g/mol        Na = 23.0 g/mol

2 Na + Cl₂ = 2 NaCl

2 x 23 g Na -------> 71.0 g Cl₂
96.6 g Na ----------> ?

Mass Cl₂ = ( 96.6 x 71.0 ) / ( 2 x 23 )

Mass Cl₂ = 6858.6 / 46

= 149.1 g of Cl₂

hope this helps!
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