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3 years ago

In what type of reaction or process does heat flow into the system

Chemistry

1 answer:

SCORPION-xisa [38]3 years ago

5 0

Answer: The correct answer is: " endothermic . "

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Note: Heat flows into [heat may be absorbed within] an "endothermic" reaction or system

To the contrary, heat flows out  [heat may exit from or may be released from] an "exothermic" reaction or process.

Hint: Think of the "prefixes" of: "endothermic" and "exothermic" :

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1) endo- = "within" (as in "endothermic" —heat tends to be absorbed/"within"/"released within"/released within"/into" ;

2) exo- = " outwards"/"exit" (as in "exothermic") —heat tends to '"exit"/leave/escape from/"be released out of/form".

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Hope this is helpful to you!

Best wishes to you in your academic pursuits

—and within the "Brainly" community"!

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You might be interested in

If 3.8 moles of zinc metal react with 6.5 moles of silver nitrate, how many moles of silver metal can be formed, and how many mo

bulgar [2K]

Answer: 6.5 moles of silver metal is formed in the given chemical reaction. The moles of excess reagent left are 0.55 moles.

Explanation:

To calculate the moles of silver formed and the moles of excess reagent left after the reaction, we need to balance the equation first and need to find the limiting and excess reagent.

The balanced chemical equation is:

$Zn+2AgNO_3\rightarrow Zn(NO_3)_2+2Ag$

By Stoichiometry:

2 moles of Silver nitrate reacts with 1 mole of Zinc metal

So, 6.5 moles of silver nitrate will react with = $\frac{1}{2}\times 6.5=3.25moles$ of zinc metal

The required amount of zinc metal is less than the given amount of zinc metal, hence, it is considered as an excess reagent.

Therefore, silver nitrate is the limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

2 moles of silver nitrate produces 2 moles of silver metal

So, 6.5 moles of silver nitrate will produce = $\frac{2}{2}\times 6.5=6.5moles$ of silver metal.

Number of moles of excess reagent left after the completion of reaction = (3.8 - 3.25)moles = 0.55 moles

Hence, 6.5 moles of silver metal is formed in the given chemical reaction. The moles of excess reagent left are 0.55 moles.

7 0

3 years ago

(a) calculate the molarity of a solution made by dissolving 0.0815 mol na2so4 in enough water to form exactly 550. ml of solutio

Vesna [10]

You just need to convert it into moles per Liter (mol/L).

0.0815mol / 0.550L = 0.148mol/L

4 0

3 years ago

When hydrogen gas is bubbled into 2-butyne, the product is

kolbaska11 [484]

Answer:

On treatement of 2 -with hydrogen gas and lindlar catalyst, the major product obtained is cis-2butene.

3 0

1 year ago

ASAP PLLEEASE HURYYYYYYYYYYRRRRRRRRRRRRYY (NO FILES FOR ME NEEDING TO DOWNLAOD PLEASE!)

pickupchik [31]

Answer:

1.Fill in the blank with the correct term to make the statement true.

During the (night)

at the beach, the land cools down

(slower)

than the

(ocean).

Because of this, the air over the land is

(Warmer) than the air over the ocean. The

(More)

dense air rises over the ocean and the cooler,

(More)

dense air blows in from over the land creating a

(sea)

breeze.

2.Which statement is true about winds?

Winds always blow from low to high pressure.

true

Winds always blow from water to land.

false

Winds always blow from land to water.

false

3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?

They stop all movement of both air and water.

They speed up the air and water and allow it to pass though.

They change the direction and slow them down.

think this is it

They slow down the air but speed up the water.

pt:2

answering the pictures

9- I don know sorry

15-B

16-A

Explanation:

just trying to help LET ME KNOW IF IT'S WORNG

3 0

3 years ago

Read 2 more answers

My Everest is the highest mountain on earth.its height is 8.848 km. Convert this height to feet. Write your answer in standard n

Vinvika [58]

Answer: $2.9(10)^{7} ft$

Explanation:

Firstly we need to know that $1 km=3280.84 ft$ , then we cam make the conversion:

$8848 km \frac{3280.84 ft}{1 km}=29,028,872.32 ft$ This is the height of Mount Everest in feet

However, we can express it using scientific notation by counting to the left the decimal spaces:

$29,028,872.32 ft \approx 2.9(10)^{7} ft$

3 0

3 years ago