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Alchen [17]
2 years ago
15

PLEASE HELP!!!!!!! SCIENCEE!!!!

Chemistry
1 answer:
frozen [14]2 years ago
8 0

Answer:

a) 1

b) from a common ancestor

Explanation:

pls give brainlyist

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Marina CMI [18]
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The synthesis of <span>desoxy-19-nortestosterone by Robinson Annulation is shown below,</span>

4 0
3 years ago
Two mice have different parents. They both have the same protein for whisker thickness in their cells.
musickatia [10]

Answer:

Due to presence of similar protein.

Explanation:

The two mice are different from one another due to their different parents so in that way the physical features of both mice are different from one another. Both mice have the same protein for whisker thickness in their cells that leads to same whisker in both mice. The common feature in both mice are the protein that is responsible for whisker thickness so both have same whisker on their face.

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3 years ago
The decantate from Question 1 that possibly contains K, Zn, or Cr, is neutralized with acetic acid and divided into the appropri
stepladder [879]

Answer:

2 that is Calcium (Ca) and Manganese (Mn)

Explanation:

Add dithizone in chloroform and look for a red complex formation.

4 0
3 years ago
4. When 732 grams of water was heated, it absorbed 1962 Joules of heat. The original temperature of the water was 45°C. What was
SCORPION-xisa [38]

Answer:

T_{final} =45.64C=final temperature

Explanation:

In the question specific heat of water is not given but we should know the value of that and it 4.18Jg∘C

Specific heat means how much heat is required to increase the temperature of 1 gram of substance that substance by 1∘C .

Equation between heat lost or gain and the change in temperature.

q=m⋅c⋅ΔT , where

q - the amount of heat

m - the mass of the sample

c - specific heat  of sample

ΔT - change in temperature

put all the given value into this ,

q=m\times c \times  \Delta  T

\Delta T=\frac{q}{mc} =\frac{1962}{732 \times 4.18}

\Delta T= 0.64C

T_{final} -T_{initial} =0.64C

T_{final} =45.64C=final temperature.

8 0
4 years ago
Question 3 (1 point)
bija089 [108]

Answer:

Im pretty sure its B

Explanation:

6 0
4 years ago
Read 2 more answers
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