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lilavasa [31]
3 years ago
15

Name the process that releases carbon dioxide into the atmosphere.

Chemistry
1 answer:
Neko [114]3 years ago
3 0
Cellular respiration
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Whenever there is a change of state, such as solid to liquid or liquid to gas, heat energy can be added without a temperature ch
egoroff_w [7]

Answer:

The change of state requires energy.

Explanation:

Instead of the energy changing the temperature the heat energy is used by changing its form.

3 0
2 years ago
At what pH range bayer process operate? and why?
Novosadov [1.4K]

Explanation:

Bayer process is industrial method of the refining of the bauxite to produce alumina which is aluminum oxide.

As alumina is amphoteric in nature, it exhibits a higher solubility at both the extremes of pH range, it is possible to dissolve alumina in low as well as in high pH solutions.

Dissolution of the alumina at high pH is well recognized in Bayer process. Bauxite is digested in very <u>high pH solution (> 13)  of alkali</u> like sodium hydroxide at temperature of about 150–250°C and pressure at 20 atm. <u>This is done so that the dissolved alumina is separated from rest of insoluble bauxite minerals. </u>

3 0
4 years ago
How are dogs born? (10 points)
snow_lady [41]

Answer:

Most puppies are born head first but some come tail first. Puppies are born inside a thin sac, which the mother will remove, enabling them to breathe. After each puppy, your dog should pass an afterbirth (placenta), which they often eat.

Explanation:

6 0
3 years ago
What is the oxidation number of the chromium atom in Li2Cr2O7? ​
DanielleElmas [232]
I believe the answer is 2
5 0
4 years ago
How many moles of oxygen are in a sample of 29.1 moles of coal (C135H96O9NS)?
Citrus2011 [14]

Answer:

2.19moles

Explanation:

mole = mass ÷ molar mass

Molar Mass of the compound, C135H96O9NS =

12(135) + 1(96) + 16(9) + 14 + 32

= 1620 + 96 + 144 + 14 + 32

= 1906g/mol

Next, we calculate the mass percent of Oxygen in the compound

O9 = 16(9) = 144g/mol

144/1906 × 100

= 0.0755 × 100

= 7.55%

This means that there are 0.0755g of Oxygen in 1 mole of the coal compound.

Hence, in 29.1 moles of coal, there would be 29.1 × 0.0755

= 2.19moles of Oxygen

7 0
3 years ago
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