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3 years ago

Agree or disagree with which one and provide evidence thank you!!!!!!!:)

Chemistry

2 answers:

natita [175]3 years ago

7 0

Answer:

i disagree with number 1 because cloroplast does NOT carry-out photosynthesis.

Explanation:

agree with everything else

forsale [732]3 years ago

3 0

Answer:number 2

Explanation:

the definition of photosynthesis is that carbon dioxide and water changes into sugar and oxygen

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A variation of the acetamidomalonate synthesis can be used to synthesize serine. The process involves the following steps: Ethox

Alex73 [517]

Answer:

See detailed mechanism in the image attached

Explanation:

The mechanism shown in detail below is the synthesis of serine in steps.

The first step is the attack of the ethoxide ion base on the diethyl acetamidomalonate substrate giving the enolate and formaldehyde.

The second step is the protonation of the oxyanion from (1) above to form an alcohol as shown.

Acid hydrolysis of the alcohol formed in (3) above yields a tetrahedral intermediate, a dicarboxyamino alcohol.

Decarboxylation of this dicarboxyamino alcohol yields serine, the final product as shown in the image attached.

5 0

3 years ago

Some plants make cones. Other plants make flowers. What is the purpose of flowers and cones

Semenov [28]

Answer:

Both cones and flowers produce seeds and are used for reproduction. ... The male cones release pollen which is carried by the wind to a female cone. A pollen tube is formed and pollen is transferred to fertilize the female cone's egg

5 0

3 years ago

Which of the following methods will usually cause a reaction to speed up?

maw [93]

Reducing the concentration of reactants

5 0

2 years ago

An ionic bond is a bond that forms between

Morgarella [4.7K]

Answer: An ionic bond is a bond that forms between ions with opposite charges.

Explanation:

A chemical bond formed by the transfer of electrons from one atom to another is called an ionic bond.

For example, sodium has electronic distribution as 2, 8, 1 and chlorine has electronic distribution as 2, 8, 7.

In order to attain stability, sodium needs to lose 1 electron and chlorine needs to gain one electron. Therefore, sodium will transfer its one valence electron (forming $Na^{+}$ ion) to chlorine atom (forming $Cl^{-}$ ion) which leads to the formation of NaCl compound.

Thus, we can conclude that an ionic bond is a bond that forms between ions with opposite charges.

3 0

2 years ago

What is the delta H fusion used to calculate volume of a liquid frozen that produces 1 kg of energy?

gulaghasi [49]

Answer:

The correct option is C. 1 kJ x 1/ΔHfus x g/mol x ml/g liquid

Explanation:

The change in enthalpy of fusion (ΔHfus) has units of energy divided into moles of substance:

ΔHfus = energy/mol of substance = J/mol or KJ/mol

Thus, we multiply the kJ of energy produced by the inverse of ΔHfus (in kJ/mol) we obtain the moles of substance:

energy (kJ) x 1/ΔHfus (mol/kJ) = moles of substance(mol)

Then, if we multiply the moles of substance by the molecular weight of the substance (in g/mol) we obtain the grams:

moles of substance(mol) x molecular weight (g/mol) = grams of substance (g)

Finally, if we multiply the grams of substance (in g) by the density of the substance (in g/ml) we obtain the volume (in ml):

grams of substance (g) x 1/density (ml/g) = volume (ml)

We combine all these parts to obtain the equation for the volume required to produce 1 kJ of energy:

energy (kJ) x 1/ΔHfus (mol/kJ) x molecular weight (g/mol) x 1/density (ml/g)

Therefore, the correct option is:

C → 1 kJ x 1/ΔHfus x g/mol x ml/g liquid

5 0

3 years ago

Read 2 more answers

Agree or disagree with which one and provide evidence thank you!!!!!!!:)​

Agree or disagree with which one and provide evidence thank you!!!!!!!:)