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S_A_V [24]
3 years ago
9

Iron reacts with oxygen in the air to make rust.

SAT
2 answers:
AlekseyPX3 years ago
7 0
The answer is A. 4Fe + 302 2Fe203
PSYCHO15rus [73]3 years ago
3 0

Answer:

A.

4Fe + 3O2 2Fe2O3 .........................

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Suppose that 3. 33 g of acetone at 25. 0 °c condenses on the surface of a 44. 0-g block of aluminum that is initially at 25 °c.
Vlada [557]

The final temperature on the block is 25 degrees.

Heat is a form of energy. This question shows that energy is transferred from the acetone to the metal block.

Data given;

  • M1 = 3.33g
  • T1 = 25 degrees
  • M2 = 44g
  • T2 = 25 degree
  • C1 = 124.5 J mol K
  • C2 = 0.89 J/g K
<h3>Heat Transfer</h3>

Applying the principles of heat transfer,

Heat loss = Heat gain

m1c1(T1 - T3) = m2c2(T3 - T2)\\3.33*124.5*(25.0 - T3) = 44*0.89*(T3 - 25)\\10364.625 - 414.585T3 = 39.16T3 - 979\\10364.625+979 = 414.585T3 +39.16T3\\11343.25 = 453.745T3\\T3 = \frac{11343.25}{453.745} \\T3 = 24.999\\T3 = 25

From the calculation above, the final temperature on the block is 25 degrees.

Learn more on heat transfer here;

brainly.com/question/15003174

3 0
2 years ago
What are you unlikely to find at Chichicastenango? computers food drummers antiques
mrs_skeptik [129]

Answer:

most likely computers, im in the middle of the test, ill reassure in explanation

Explanation:

yep i was right

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3 years ago
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An immigrant is someone that is __________.
Lilit [14]

Not originally from the place they are now.

<em>*Some one who migrates to a different area*</em>

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The choices are <br> O solar flares <br> O neap tides<br> O new moon <br> O eclipse
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answer is eclipse

moon eclipse

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A plan of dollar amounts to be spent on long-term projects is called a
lukranit [14]

A plan of dollar amounts to be spent on long-term projects is called a Capital Budget.

<h3>What Is Capital Budgeting? </h3>

Capital budgeting is known to be a form of a business doings that is often done to examine potential major projects or any form of an investments.

Note that before a person does any business, it is good that they have the budgeted amount of money they are willing to spend as it is important before going into the business.

Hence, A plan of dollar amounts to be spent on long-term projects is called a Capital Budget.

Learn more about long-term projects from

brainly.com/question/19866249

#SPJ1

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