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bulgar [2K]
3 years ago
14

When you heat a liquid, the molecules spread farther apart and the liquid expands, and when you cool a liquid, the molecules get

closer together and the liquid condenses. How is water different?
Chemistry
2 answers:
Arlecino [84]3 years ago
7 0
It was a liquid before but now it’s a gas
ale4655 [162]3 years ago
4 0

Answer:

the water is diffrent because it is now a gas not a liquid

Explanation:

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Two chemical reactions that you should be familiar with are photosynthesis and respiration. In photosynthesis, the energy of the
Lesechka [4]

Answer:

Photosynthesis is endothermic while respiration is exothermic reaction.

Explanation:

Photosynthesis:

It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.

Carbon dioxide + water + energy →   glucose + oxygen

water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture  by chloroplast.

Chemical equation:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

Aerobic respiration

It is the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.

Glucose + oxygen → carbon dioxide + water + 38ATP

Anaerobic Respiration

It is the breakdown of glucose molecule in the absence of oxygen and produce small amount of energy. Alcohol or lactic acid and carbon dioxide are also produced as byproducts.  

Glucose→ lactic acid/alcohol + 2ATP + carbon dioxide

3 0
3 years ago
Classify the statements below as Weather or Climate. HELP ME WITH THIS The wind is blowing from the south. The average temperatu
ivanzaharov [21]

Answer:

Weather:

- The wind is blowing from the south.

- There is a thunderstorm warning.

- The average high temperatures for July in Yellowknife is 32.5 degrees Celcius.

- The wind is blowing at 56 km / hr.

Climate:

- The average temperature for February in Australia is 19 degrees Celsius.

- The average rainfall for June in Kenya is 3.3cm.

- 10mm of rain fell today.

- It is usually cold in Ottawa in January. -There was a cold weather advisory on Jan 21 2020.

-Hurricanes are most likely to hit the Gulf of Mexico and the Carribean.

Explanation:

Hope it helps.

6 0
3 years ago
When dinitrogen pentaoxide, a white solid, is heated, it decomposes to produce nitrogen dioxide gas and
AysviL [449]

9.5314 L is the volume of nitrogen dioxide formed at 103.25 kPa and 22.75 °C.

<h3>What is an ideal gas equation?</h3>

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Given data:

Oxygen produced - 1.618 gram

Decomposition of N_2O_5 takes place.

Find - Amount of NO_2 produced.

The decomposition reaction is as follows -

2N_2O_5--> 4NO_2 + O_2

Moles of O_2 gas =\frac{1.6}{16}  =0.1 moles.

1 mole of O_2 is produced from 2 moles of dinitrogen pentoxide

0.1 mole of O_2  will be produced from = 0.2 moles.

Now, 2 moles of dinitrogen pentoxide produce 4 moles of NO_2

NO_2 produced will be - 0.4 moles.

Weight of NO_2 produced - 0.4 X 46

Weight of NO_2  produced - 18.4 gram

Thus, grams of NO_2 produced are 18.4

Now calculate the volume of NO_2

Given data are:

P=103.25 kPa =1.01899827 atm

T= 22.75 °C +273 = 295.75 K

n=0.4 moles

V=?

R= 0.0821 liter·atm/mol·K

Putting the value in PV=nRT

V =  \frac{nRT}{P}

V =  \frac{0.4 \;moles \;X \;0.0821\; liter\;atm/\;mol \;K X \;295.75 \;K}{1.01899827 atm}

V= 9.5314 L

Hence, 9.5314 L is the volume of nitrogen dioxide formed at 103.25 kPa and 22.75 °C.

Learn more about the ideal gas equation here:

brainly.com/question/13450124

#SPJ1

8 0
2 years ago
Which form of asexual reproduction describes the process of a cell dividing to
stepan [7]

Answer:A

Explanation:Binary Fission, meaning ‘getting divided into half’ is a type of asexual reproduction where a single living cell grows twice its size and then splits to form two identical daughter cells, each carrying a copy of the parent cell’s genetic material. Examples of cells that use binary fission for division

3 0
3 years ago
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Is "Barrel of Slime" Toxic?
slava [35]
No Barrel of Slime Isn't toxic ( Smiles )
8 0
4 years ago
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