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nikklg [1K]
3 years ago
14

21. Which has a greater density: a large block of ice or a small block of iron?

Chemistry
1 answer:
irinina [24]3 years ago
7 0

Answer:

I think ice !

Explanation:

its my answer

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Abiotic things are like rocks...dirt...water vs. biotic is living things or something that was living
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Balance the following Chemical Equation:<br> NaBr +CaCl2-&gt; NaCl+ CaBr2
frozen [14]
First write all of the compounds/atoms in either side then fill in existing values and balance


Na- 1
Br- 1
Ca- 1
Cl- 2

Na- 1
Cl- 1
Ca-1
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Balance to get

2NaBr+CaCl2=2NaCl+CaBr2
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3 years ago
Draw the product formed when cyclohexene is reacted with H2 in the presence of Pt. Note: If adding hydrogen atoms to a carbon at
tigry1 [53]

Answer:

It has been drawn and uploaded as an attachment. Please download it to see the structure.

Explanation:

The product formed as a result of the reaction of cyclohexene with H2​ in presence of Pt (platinum) can be described as catalytic hydrogenation. Catalytic hydrogenation is defined as the process of hydrogen addition in the presence of a catalyst, which in this case is platinum.

Note that Cyclohexene (alkene) is a hydrocarbon molecule represented by the chemical formula, C6​H10​ .

It consists of a double bond. During the hydrogenation reaction, the alkene undergoes an addition reaction to give alkane which is a saturated hydrocarbon as the product.

The first step in order to derive the product is to draw the chemical structure of cyclohexene and identify the double bond present in it.

The final product can be derived by replacing the double bond with the single bond and satisfying all the valences of the carbon atom. The final product structure has been drawn and uploaded as an attachment. Please download it to see the structure.

Ans:

The structure of the cyclohexane thus, formed has been shown as follows with all the hydrogen atoms:

3 0
3 years ago
What is the term for a ratio of equivalent measurements that can be used to change a value from one until into another
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Answer:conversion factor

Explanation:

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3 years ago
What is the heat in joules required to melt 25 grams of ice?
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Answer:

8,350 Joules

Hope this helps

7 0
2 years ago
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