Answer:
0.4 moles of KOH is required to neutralize 0.4 moles of HNO3.
Explanation:
The equation of the reaction is
KOH(aq) + HNO3(aq) ------> KNO3(aq) + H2O(l)
This is a neutralization reaction. A neutralization reaction is a reaction between an acid and a base to form salt and water only.
Having written the balanced chemical reaction equation, we can now solve the prob!em stoichiometrically.
From the balanced reaction equation;
1 mole of KOH is required to neutralize 1 mole of HNO3
Therefore x moles of KOH is required to neutralize 0.4 moles of HNO3
x= 1×0.4/1 = 0.4 moles
Therefore, 0.4 moles of KOH is required to neutralize 0.4 moles of HNO3.
Answer:
Activation Energy
Explanation:
The main cause of slowness to start a reaction is the value of it activation energy. When metals possess low activation energy, it takes them time to start a reaction. But once started, the reaction becomes vigorous.
Activation Energy: the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
I will mark brainlist please help
1) what is the subject of a sentence?
• the verb
• tells who or what the sentence is about
• the action in the sentence
2) What is the predicate of a sentence?
• who the sentence is about?
• tells what the subject is or does
3) What is the PREDICATE in this sentence.
- Mrs. Shaffer is crazy
• Mrs. Shaffer
• is
• is crazy
• Shaffer is crazy
4) what is the predicate of this sentence.
- Friday is the best day of the week
• Friday
• is the best day of the week
5) What is the subject of this sentence?
- The turtle is swimming in the ocean
• the turtle
• is swimming in the ocean
6) What is the the complete predicate of this sentence?
- The class studied whales.
• class
• the class
• whales
• studied whales
7) What is the predicate in the sentence
- She drank her whole glass of milk
• she
• milk
• drank her whole glass of milk
• drank milk
8) what is the subject in the sentence?
- The music class attended the opera.
• the music class
• attended
• music
9) identify the complete subject.
- Susan and Kay went swimming.
• went swimming
• Susan and Kay
• went
10) identify the COMPLETE predicate
- Tina and her friends went to the movies
• Tina
• her friends
• to the movies
• went to the movies
11) identify the SIMPLE PREDICATE PART.
- Tina and her friends went to the movies
• Tina
• her friends
• went
• the movies
12) identify the circled line in the sentence.
- All of the ((((PLAYERS)))) went to practice
• complete subject
• simple subject
• simple predicate
• complete predicate
