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melamori03 [73]
3 years ago
11

Please explain why the answer is correct and why the others aren’t. Thank you!!

Chemistry
1 answer:
Over [174]3 years ago
8 0
JAJDJFR DI WIKWIKIWKWIW
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How many significant figures are in the number 020.310
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Answer:

5

Explanation:

Sorry, don't have one

<u><em>Hope this helps and I get brainliest <3</em></u>

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3 years ago
Which kind of investigations allow for the control of variables?
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the answer to this is O hypothesis

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Why does a cake rise when you bake it? ♡
VARVARA [1.3K]

The reaction of baking soda or baking powder with the liquid in the batter: These ingredients react together and cause air bubbles to form. ... Heat of the oven: The heat of the oven can cause baking powder to react further and cause more air bubbles, and the heat also sets the structure of the cake.

5 0
4 years ago
Read 2 more answers
I NEED HELP PLEASE! :)
MrMuchimi

<u>answer</u> 1<u> </u><u>:</u>

Law of conservation of momentum states that

For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed.

<u>answer</u><u> </u><u>2</u><u>:</u><u> </u>

When a substance is provided energy<u> </u>in the form of heat, it's temperature increases. The extent of temperature increase is determined by the heat capacity of the substance. The larger the heat capacity of a substance, the more energy is required to raise its temperature.

When a substance undergoes a FIRST ORDER phase change, its temperature remains constant as long as the phase change remains incomplete. When ice at -10 degrees C is heated, its temperature rises until it reaches 0 degrees C. At that temperature, it starts melting and solid water is converted to liquid water. During this time, all the heat energy provided to the system is USED UP in the process of converting solid to the liquid. Only when all the solid is converted, is the heat used to raise the temperature of the liquid.

This is what results in the flat part of the freezing/melting of condensation/boiling curve. In this flat region, the heat capacity of the substance is infinite. This is the famous "divergence" of the heat capacity during a first order phase transition.

There are certain phase transitions where the heat capacity does not become infinitely large, such as the process of a non-magnetic substance becoming a magnetic substance (when cooled below the so-called Curie temperature).

4 0
3 years ago
Help me please show the work
Feliz [49]

2 => 6 meters = 600cm

3 => 70 quarts = 17.5 gallon

50 inches = 1.5 meters

2,000 grains = 4.57 ounces

7 tablespoons = 0.027344 gal

3 0
3 years ago
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