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nevsk [136]
3 years ago
10

Mildred takes a pound of frozen hamburger meat out of the freezer and puts it into the refrigerator. Which of the following best

describes the direction of heat flow?.
Chemistry
2 answers:
Zinaida [17]3 years ago
8 0

Answer:

from the air in the refrigerator to the hamburger. :)

Explanation:

Sedaia [141]3 years ago
5 0
The heat will flow into the frozen hamburger. By gaining heat, it will thaw. Remember heat flows from high to low. since the temperature of the refrigerator is lower than the freezer when you put in the burger there, it is colder inside the burger than outside, so heat will go in. 
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A student isolated 15.6 g of product from a chemical reaction. She calculated that the reactions should have produced 18.4 g of
Snezhnost [94]

Answer:

The percent yield of this reaction is 84.8 % (option A is correct)

Explanation:

Step 1: Data given

The student isolated 15.6 grams of the product = the actual yield

She calculated the reaction should have produced 18.4 grams of product = the theoretical yield = 18.4 grams

Step 2: Calculate the percent yield

Percent yield = (actual yield / theoretical yield ) * 100 %

Percent yield = (15.6 grams / 18.4 grams ) * 100 %

Percent yield  = 84.8 %

The percent yield of this reaction is 84.8 % (option A is correct)

7 0
4 years ago
draw the organic product formed when 1−hexyne is treated with h2o, h2so4, and hgso4. click the draw structure button to launch t
V125BC [204]

The organic product formed when 1−hexyne is treated with H₂O, H₂SO₄, and HgSO₄ will be 2-hexanone (structure attached).

This reaction is an example of an oxymercuration reaction of the organic product 1−hexyne.

Oxymercuration is shown in three steps to the right. The nucleophilic double bond attacks the mercury ion, releasing an acetoxy group. The mercury ion's electron pair attacks carbon on the double bond, generating a positive-charged mercuronium ion. Mercury's dxz and 6s orbitals give electrons to the double bond's lowest unoccupied molecular orbitals.

In the second stage, the nucleophilic H₂O attacks the highly modified carbon, freeing its mercury-bonding electrons. Electrons neutralize mercury ions by collapsing. Water molecules have positive-charged oxygen.

In the third stage, the negatively charged acetoxy ion released in the first step attacks the hydrogen of the water group, generating the waste product HOAc. The two electrons in the oxygen-hydrogen link collapse into oxygen, neutralizing its charge and forming alcohol.

You can also learn about organic products from the following question:

brainly.com/question/13513481

#SPJ4

4 0
1 year ago
Which change of phase is most likely occurring in the beaker
solniwko [45]

Answer:

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Explanation:

Heat makes molecules move and eventually evaporate.

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3 years ago
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If the sun was not there the earth would travel in a straight line
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What is the relationship between atoms, elements and compounds?
KatRina [158]
Compound is formed when two or more chemical elements are chemically bonded together. elements are made of atoms
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