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Anastasy [175]
3 years ago
8

2 Equation on chemistry that I have been struggling with, needed some assistance

Chemistry
1 answer:
crimeas [40]3 years ago
7 0

Answer:

2. Copper (II) carbonate plus sulfuric acid produces copper (II) sulfate and carbon dioxide and water.

  • We need the "II" after copper to specify what charge it is. It's +2 because carbonate is -2.

3. Calcium hydroxide plus carbon dioxide gas produces calcium carbonate and water.

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Can someone please help me ty!!❤️
777dan777 [17]

Answer:

A

Explanation:

5 0
3 years ago
Read 2 more answers
Which of the following does not correctly describe Sn2 reactions of alkyl halides? A) The mechanism consists of a single step wi
Rashid [163]

Answer:

The correct answer is B the tertiary halides reacts faster than primary halides.

Explanation:

During SN2 reaction the nucleophile attack the alkyl halide from the opposite side resulting in the formation of transition state in which a bond is not completely broken or a new bond is not completely formed.

   After a certain period of time the nucleophile attach with the substrate by substituting the existing nuclophile.

  An increase in the bulkiness in the alkyl halide the SN2 reaction rate of that alkyl halide decreases.This phenomenon is called steric hindrance.

  So from that point of view the that statement tertiary halides reacts faster that secondary halide is not correct.

7 0
3 years ago
Solutions that are very concentrated have greater freezing point depression Group of answer choices true or false
Tamiku [17]

Answer:

Explanation:

False. The greater the concentration, the lower the freezing point.

8 0
3 years ago
Which pair of compounds has the same empirical formula? c3h8 and c3h c2h2 and c2h c4h10 and c6h c4h10 and c2h5.
BartSMP [9]

Answer:

The correct answer is the final pair: C4H10 and C2H5

Explanation:

Took the test and it was right. :)

8 0
3 years ago
Use an example how natural selection can lead to evolution
Eddi Din [679]
Natural selection leads to evolutionary change when individuals with certain characteristics have a greater survival or reproductive rate than other individuals in a population and pass on these inheritable genetic characteristics to their offspring.
3 0
3 years ago
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