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Sliva [168]
3 years ago
15

Why does an aerial firework require two explosions of black powder?

Chemistry
2 answers:
Len [333]3 years ago
5 0

Answer:

',lkgh

Explanation:

dimaraw [331]3 years ago
4 0

Answer:  Because one is when it hit the ground but its called an impact the the it explode

Explanation:Hope it wil help

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What is the iupac name of this structure?
alexgriva [62]

Answer:

3–ethyl–4–methylhexane.

Explanation:

To name the above compound, do the following:

1. Determine the functional group of the compound.

2. Locate the longest continuous carbon chain. This gives the parent name of the compound.

3. Identify the substituent group attached to the compound.

4. Give the substituent the lowest possible count.

5. Combine the above to name the compound.

Now, we shall name the compound given in the question above as follow:

1. The compound contains only single bond. Therefore, the compound belong to the alkane family.

2. The longest continuous carbon chain is 6 i.e hexane.

3. The substituent group attached are:

i. Methyl, CH3.

ii. Ethyl, CH2CH3.

4. we shall name the substituents alphabetically i.e ethly will come before methyl. Therefore,

Ethyl is located at carbon 3.

Methy is located at carbon 4.

5. Therefore, the name of the compound is:

3–ethyl–4–methylhexane.

5 0
3 years ago
890J of heat are applied to a piece of aluminum, causing a 4.6°C increase in its temperature. The specific heat of aluminum is 0
Semmy [17]

Answer:

The answer would be C 214g

Explanation:

890j of heat causes 4.6°c increase in temperature

specific heat of aluminium after is o.9022 j /g°c

now by using the formula .The mass of aluminium would be c that is 214 g

7 0
3 years ago
1. Multiple Choice
solong [7]

Answer:

#1 A

#2 B

#3 C

#4 c

Explanation:

#1 can give reference to a mountain the higher the altitude the colder it will get

#2 talking about climate not seasons per say. focus on climate answers

#3 wind carry moisture from the sea on to land which cause precipitation

#4 Monsoons is correct

5 0
3 years ago
Which type of wave has the lowest energy of the following:
Tcecarenko [31]

Answer:

use this to help u it starts from left to right

<u><em>Please mark as brainliest if answer is right</em></u>  

Have a great day, be safe and healthy  

Thank u  

XD

3 0
3 years ago
Determine the overall energy change for the reaction between hydrogen and oxygen shown in Question 13. Use Figure 2.
zimovet [89]

Answer:

–500KJ

Explanation:

Data obtained from the question include the following:

Heat of reactant (Hr) = 800KJ

Heat of product (Hp) = 300KJ

Enthalphy change (ΔH) =..?

The enthalphy change is simply defined as the difference between the heat of product and the heat of reactant i.e

Enthalphy change = Heat of product – Heat of reactant

ΔH = Hp – Hr

With the above formula, we can easily calculate the enthalphy change as follow

ΔH = Hp – Hr

ΔH = 300 – 800

ΔH = –500KJ.

Therefore, the overall energy change for the reaction between hydrogen and oxygen shown in the diagram above is –500KJ

5 0
3 years ago
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