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KiRa [710]
3 years ago
13

In performing the "STEP TEST" for 3 minutes, what was your score (your count)? *

Chemistry
2 answers:
MAXImum [283]3 years ago
8 0

Answer:

81

Explanation:

Lady bird [3.3K]3 years ago
8 0

Answer:

81

Explanation:

Brainliest?

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What is the balanced form of the chemical equation shown below?
Svetradugi [14.3K]

Answer:

D

Explanation:

Double Displacement reaction

Both sides are balanced with option D

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Some hypothetical alloy is composed of 12. 5 wt% of metal a and 87. 5 wt% of metal b. If the densities of metals a and b are 4.
gavmur [86]

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The number of

atoms in the unit cell is 2

Explanation:

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2 years ago
Describe what happens when two negatively charged particles interact with one another. (plz help 40 points!)
lisov135 [29]

Answer:

When two negatively charged particles interact with one another, the particles repel with each other. Opposite charges attract while like charges repel. A negatively charged object will exert a repulsive force upon a second negatively charged object.

Explanation:

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3 years ago
Do you think one type of engineer is more important that others? Defend your<br> answer.
olchik [2.2K]

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No

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All of the engineers today help us in many ways.

7 0
2 years ago
Read 2 more answers
Compound X has the formula C8H14.
Kipish [7]

Answer:

Compound X has the formula C8H14.

X reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst to form a mixture of cis- and trans-1,2-dimethyl cyclohexane. Treatment of X with ozone followed by zinc in aqueous acid gives a ketone plus formaldehyde (CH2=O). What is the structure of X?

Explanation:

The degree of unsaturation in the given molecule C8H14 is:

DU=(Cn+1)-Hn/2-Xn/2+Nn/2

where,

Cn=number of carbon atoms

Hn=number of hydrogen atoms

Xn=number of halogen atoms

Nn=number of nitrogen atoms

C8H14:

DU=(8+1)-14/2

=>DU=9-7 =2

Hence, the given molecule will have either two double bonds or one double bond and one ring or two rings.

X reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst to form a mixture of cis- and trans-1,2-dimethylcyclohexane.

This indicates that the molecule X has one double bond and one ring that is cyclohexane ring.

Treatment of X with ozone follwed by zinc in aqueous acid gives a ketone plus formaldehyde (CH2=O).

So, the molecule has a ring and double bond CH2.

Based on the given data the structure of compound X is shown below:

The reaction sequence is shown below:

3 0
3 years ago
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