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Keith_Richards [23]
2 years ago
10

What type of energy moves from warmer to cooler?

Chemistry
1 answer:
stich3 [128]2 years ago
8 0

Answer:

Thermal energy is transferred from hot places to cold places by convection. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas.

Explanation:

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What is the overall charge of a Aluminum atom that loses 3 electrons​
Rudik [331]
It’s charge was neutral due to the equal number of protons and electrons. when it becomes an ion it loses 3 electrons leaving behind only 10. the answer is 10. the equation is +13 +(-10)=+3
8 0
2 years ago
What is the percentage error of a length measure of 0.229 cm if the correct value is 0.225 cm
olchik [2.2K]
((|Vtrue-Vobserved|) / (Vtrue)) x 100

1.77777%error
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3 years ago
Help Please and answer correctly otherwise, I can report the answer and your account so make sure the answer is correct BUT PLEA
Alina [70]

Answer:

G

Explanation:

8 0
2 years ago
Identify the true statements about surface tension. Molecules along the surface of a liquid behave differently than those in the
Alexxandr [17]

Answer:

Molecules along the surface of a liquid behave differently than those in the bulk liquid.

Cohesive forces attract the molecules of the liquid to one another.

Water forming a droplet as it falls from a faucet is a primary example of surface tension.

Explanation:

Surface tension is the force that stretches the liquid surface. This force acts normal to the surface. It is the downward force that acts on the surface of the liquids which is due to the cohesive forces of the liquids.

The water molecules are bonded by a strong hydrogen bond force which is between hydrogen atom and the electronegative oxygen atom. At the surface the water molecules are attracted strongly by other water molecules which lies below the surface and are stretched at the surface. Thus the water molecules at the surface acts differently than in the bulk liquid.

Mercury have a strong cohesive force than the water and have a higher surface tension force than the water.

Surface water acquires minimum surface area, hence acquiring spherical shape of water.

4 0
3 years ago
The reaction of 15 moles carbon with 30 moles O2 will
chubhunter [2.5K]

Answer:

15 moles.

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

C+O_2\rightarrow CO_2

Clearly, since carbon and oxygen are in a 1:1 molar ratio, 15 moles of carbon will completely react with 15 moles of oxygen, therefore 15 moles of oxygen remain as leftovers. In such a way, since carbon and carbon dioxide are also in a 1:1 molar ratio, the theoretical yield of carbon dioxide is 15 moles based on the stoichiometry:

n_{CO_2}=15molC*\frac{1molCO_2}{1molC} \\\\n_{CO_2}=15molCO_2

Best regards.

8 0
3 years ago
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