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ANTONII [103]
3 years ago
7

NEED HELP PLSSS

Chemistry
1 answer:
likoan [24]3 years ago
4 0
Are their answer choices? All Ik is that compound a and b have the same ratio of u to g
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When 2-phenylacetaldehyde is added dropwise to benzaldehyde in the presence of sodium hydroxide they undergo a crossed aldol rea
egoroff_w [7]
Carbonyl Compounds containing alpha proton readily donates alpha acidic proton when treated with strong Base. In given statement <span>2-phenylacetaldehyde is converted into Enolate and Enolates acts as a nucleophile and attacks carbonyl group of Benzaldehyde. The mechanism of given reaction is as follow, the movement of electrons is shown by RED arrows,</span>

7 0
3 years ago
) What parts of pizzly resemble that of a grizzly bear?
user100 [1]

Answer:

Animal was shot in Nunavut, Canada earlier this month by hunters. It resembles a polar bear but has claws and brown paws of a grizzly bear. Experts claim the 'pizzly' or 'grolar' bear is a hybrid between the two. DNA tests revealed it was actually a blonde haired grizzly bear

Explanation:

6 0
3 years ago
6.5 Moles of Al reacts with 7.2 Moles of H2O What is the limiting reactant and calculate the Theoretical Yield?
SVEN [57.7K]

Answer:

H₂O is the limiting reactant

Theoretical yield of 240 g Al₂O₃ and 14 g H₂

Explanation:

Find how many moles of one reactant is needed to completely react with the other.

6.5 mol Al × (3 mol H₂O / 2 mol Al) = 9.75 mol H₂O

We need 9.75 mol of H₂O to completely react with 6.5 mol of Al.  But we only have 7.2 mol of H₂O.  Therefore, H₂O is the limiting reactant.

Now find the theoretical yield:

7.2 mol H₂O × (1 mol Al₂O₃ / 3 mol H₂O) × (102 g Al₂O₃ / mol Al₂O₃) ≈ 240 g Al₂O₃

7.2 mol H₂O × (3 mol H₂ / 3 mol H₂O) × (2 g H₂ / mol H₂) ≈ 14 g H₂

Since the data was given to two significant figures, we must round our answer to two significant figures as well.

4 0
3 years ago
Calculate the mass of water produced by the metabolism of 49.0 g of glucose (C6H12O6). C6H12O6 + 6O2 → 6CO2 + 6H2O
aivan3 [116]
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


7 0
2 years ago
When heating a flammable or volatile solvent for a recrystallization, which of these statements are correct? More than one answe
Citrus2011 [14]

Answer:

You should not use an open flame to heat the solvent and the solvent should be heat in a stoppered flask to vapour away from the open flame

Explanation:

6 0
3 years ago
Read 2 more answers
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