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RSB [31]
3 years ago
5

Your bedroom gets direct sunlight through a window during the hottest times of the day. you ask your mom to turn down the thermo

stat in the house so your room can cool down. instead, your mom suggests that you put aluminum foil over the window. what will the results be if you take your mom's advice?
a. a room cooled by minimizing heat transfer by reflection b. a room cooled by minimizing heat transfer by radiation c. a room cooled by minimizing heat transfer by convection d. a room cooled by minimizing heat transfer by conduction 10 points... Please help!!!
Chemistry
1 answer:
Kipish [7]3 years ago
5 0

If you take your mom's advice, a. the room will be cooled by minimizing heat transfer by reflection.

The Sun is heating your room by its <em>radiation</em>.

The aluminium foil is shiny, so it reflects the Sun’s radiation back outside the window.

<em>Convection</em> is the transfer of heat caused by the air moving around in your room.

<em>Conduction</em> occurs only when a hot object is in contact with a cooler object.

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2. How many orbitals are in the following sublevels?
Lostsunrise [7]

Explanation:

The number of orbitals in the sublevels are given below:

     Sublevels                   Orbitals

        s                                  1

        p                                 3

        d                                 5

        f                                   7

a. ls       -  1 orbital

b. 5s      - 1 orbital

c. 4d     - 5 orbitals

d. 4f       - 7 orbitals

e. 7s       - 1 orbital

f. 3p       - 3 orbitals

g. Entire 5th principal energy level : for s, p ,  f  

          1 + 3 + 5 + 7 + 9  = 25

h. 6d   - 5

8 0
3 years ago
You are asked to weigh approximately 0. 4g of acetylsalicylic acid to the nearest mg. When you enter the data in grams in your l
Natali5045456 [20]

The significant figures will be 1.

As, weight of acetylsalicylic acid = 0. 4 g

We obtain 400 mg when we convert 0.4g of acetylsalicylic acid to mg.

So, 400 milligrams are worth 0.4 grams when converted to grams.

There is just one significant figure because 0 before a decimal is not significant i.e. 4.

<h3><u>What are significant figures?</u></h3>

The digits of a number that have relevance in relation to the measurement's resolution are known as significant figures. Additionally known as significant figures in chemistry. All experimental measurements are subject to some degree of uncertainity.

<u />

Check more such questions based on significant figure here:

brainly.com/question/24491627

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3 0
1 year ago
Can the components of the iron sulfide compound be separated by physical means (ex. filtration or boiling)? if not, how could th
Simora [160]
No use a magnet to pick up the iron
3 0
3 years ago
Which of the following is characterized by existing at a discrete energy level?
hichkok12 [17]
Energy levels are considered orbitals.
5 0
3 years ago
Read 2 more answers
Using the van der Waals equation, determine the pressure exerted by 4.30 mol Ar in 3.6 L at 325K.
Vika [28.1K]

Answer:

37.7 atm

Explanation:

Using the relation;

(P + an^2/V^2) (V - nb) = nRT

(P + an^2/V^2) = nRT/(V - nb)

a = 0.0341 atm dm^2 Mol^2

b = 0.0237 dm/mol

P = nRT/(V - nb) - an^2/V^2

P = [4.3 * 0.082 * 325 / (3.6 - (4.3 * 0.0237))] - (0.0341 * (4.3^2))/(3.6^2)

P = 114.595/(3.498) - 0.0487

P = 37.7 atm

5 0
3 years ago
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