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Mila [183]
3 years ago
5

In the presence of a base, blue litmus paper will .O turn purplestay blueto turn red​

Chemistry
2 answers:
Inessa05 [86]3 years ago
7 0

Answer:

In the presence of a base, blue litmus paper will turn red........

Strike441 [17]3 years ago
5 0

Answer:

In the presence of a base the blue litmus paper would remain blue.

Explanation:

This is because the litmus paper will react depending on the pH of the solution added. If the solution is acidic pH < 7, the litmus paper will turn red. If the solution is basic, pH > 7  the litmus paper will turn blue. If the litmus paper is blue when a base is added it will remain blue.

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c when electrons drop down from a high energy level they emit a photon.

Explanation:

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Which classification best describes oxygen gas? a element b compound c solution d heterogeneous mixture
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2. Hydrogen gas at a temperature of 22.0°C that is confined in a 5.00L cylinder exerts a pressure of 4.20atm. If the gas is rele
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3 years ago
KOH (aq) + HNO(little3) (aq) = KNO(little 3) (aq) + H20 (1)
Yuki888 [10]

The reaction already balanced

<h3>Further explanation  </h3>

Equalization of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

• 1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  

• 2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  

• 3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

For gas combustion reaction which is a reaction of hydrocarbons with oxygen produces CO₂ and H₂O (water vapor). can use steps:  

Balancing C, H and the last O  

Reaction

KOH (aq) + HNO₃ (aq) ⇒ KNO₃ (aq) + H₂0 (l)

  • give coefficient

aKOH (aq) + bHNO₃ (aq) ⇒ KNO₃ (aq) + cH₂0 (l)

K : left = a, right = 1⇒a=1

N : left = b, right =1, b=1

H: left = a, right a+b=2c⇒1+1=2c⇒2=2c⇒c=1

KOH (aq) + HNO₃ (aq) ⇒ KNO₃ (aq) + H₂0 (l)⇒ already balanced

5 0
3 years ago
Which of the following is a biotic of an ecosystem a rock air grass climate
Zigmanuir [339]
Grass is biotic- living.

please vote my answer brainliest. thanks!
7 0
3 years ago
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