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puteri [66]
3 years ago
9

How can I do single replacement equations? For example, Silver metal immersed in potassium nitrate solution to yield. . .

Chemistry
1 answer:
Darina [25.2K]3 years ago
5 0
Single replacement means only 1 will bond. Ag + KNO3 --> AgNO3 + K
Just a rough sketch
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A 100.0-g sample of water at 27.0oC is poured into a 71.0-g sample of water at 89.0oC. What will be the final temperature of the
Sedbober [7]

<u>Answer:</u> The final temperature will be 52.74^oC

<u>Explanation:</u>

Calculating the heat released or absorbed for the process:

q=m\times C\times (T_2-T_1)

In a system, the total amount of heat released is equal to the total amount of heat absorbed.

q_1=-q_2

OR

m_1\times C\times (T_f-T_1)=-m_2\times C\times (T_f-T_2) ......(1)

where,

C = heat capacity of water = 4.184J/g^oC

m_1 = mass of water of sample 1 = 100.0 g

m_2 = mass of water of sample 2 = 71.0 g

T_f = final temperature of the system = ?

T_1 = initial temperature of water of sample 1 = 27^oC

T_2 = initial temperature of the water of sample 2 = 89.0^oC

Putting values in equation 1, we get:

100.0\times 4.184\times (T_f-27)=-71.0\times 4.184\times (T_f-89)\\\\171T_f=9019\\\\T_f=\frac{9019}{171}=52.74^oC

Hence, the final temperature will be 52.74^oC

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3 years ago
Prior to the development of DNA fingerprinting, blood type could be used to determine possible parentage. Although it might prov
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D.

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Explanation:

An offspring gets an allele for blood type from every parent. Therefore unless both parents have blood type O the offspring cannot have blood type O.

A person with blood group O means they do not blood group antigen on their red blood cells. They cannot pass the antigens to their offspring. A person with AB means they have both antigens for A & B blood groups and can pass either to any of the offspring they have.

The passing down of the blood group alleles follow the Mendelian principles of independent assortment.  

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How heart attacks and Strokes caused by cholesterol​
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With high cholesterol, you can develop fatty deposits in your blood vessels. Eventually, these deposits grow, making it difficult for enough blood to flow through your arteries. Sometimes, those deposits can break suddenly and form a clot that causes a heart attack or stroke.

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Answer:

yes

Explanation:

not becming

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I would have to say sperm because men cannot carry eggs but woman can carry both eggs and sperm

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