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cestrela7 [59]
3 years ago
9

It is not possible for global warming to have any positive side effects. Please select the best answer from the choices provided

T F
Chemistry
2 answers:
TiliK225 [7]3 years ago
8 0

False. For example, changing climates will mean that some areas that experience harsh weather will soon being to experience milder weather. :)

likoan [24]3 years ago
4 0

Answer: True

Explanation:

Global warming is a natural phenomena associated with increase in the global temperatures worldwide due to abundance of greenhouse gases in the atmosphere. These greenhouse gases like carbon monoxide, carbon dioxide, nitrogen dioxide are added into the atmosphere by the human activities like burning of fossil fuels and deforestation. It is concerned with many negative side effects like melting of glaciers, loss of biodiversity due to increase in global heat, increase in incidences of human diseases like asthama, hypertension.

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How is freeze dried ice cream made
ollegr [7]
Freeze drying<span> (or lyophilization) removes water from the ice cream by lowering the </span>air pressure<span> to a point where ice sublimates from a </span>solid<span> to a </span>gas<span>. The ice cream is placed in a </span>vacuum chamber<span> and frozen until the water </span>crystallizes<span>. The air pressure is lowered, creating a partial vacuum, forcing air out of the chamber; next heat is applied, </span>sublimating<span> the ice; finally a freezing coil traps the vaporized water. This process continues for hours, resulting in a freeze-dried ice cream slice. </span>
4 0
3 years ago
The value of Henry's law constant for oxygen in water at 242C is 1.66 x 1 ox M/torr. b. c. Calculate the solubility of oxygen in
DochEvi [55]
25ca an the oxygen gas is 2 atom ur mum
4 0
3 years ago
Calculate number of moles of 4.4g of CO2 and 5.6L of NH3 . Pls help . Its urgent
kupik [55]
Moles of CO₂ = mass / molecular weight
Moles of CO₂ = 4.4 / (12 + 16 x 2)
Moles of CO₂ = 0.1 mol

Each mole of gas occupies 22.4 L at STP. Therefore,
Moles of NH₃ = 5.6 / 22.4
Moles of NH₃ = 0.25 mol
4 0
3 years ago
Which of the following should have the highest conductivity? a. 3.0 M NaCl b. 2.1 M Na3PO4 c. 2.4 M CaCl2 d. 3.2 M NH4NO3
Aleks [24]

Answer:

The correct answer is option b, that is, 2.1 M Na₃PO₄.

Explanation:

The solution with the largest concentration of ions will possess the highest conductivity.

a) 3.0 M NaCl

NaCl ⇔ Na⁺ + Cl⁻

Here the total number of ions is 2, therefore, the concentration of ions is 3.0 × 2 = 6.0 M

b) 2.1 M Na₃PO₄

Na₃PO₄ ⇔ 3 Na⁺ + PO₄³⁻

Here the total number of ions i 4. Therefore, the concentration of ions is

2.1 × 4 = 8.4 M.

c) 2.4 M CaCl₂

CaCl₂ ⇔ Ca²⁺ + 2Cl⁻

The total number of ions is 3. Therefore, the concentration of ions is

2.4 × 3 = 7.2 M

d) 3.2 M NH₄NO₃

NH₄NO₃ ⇔ NH₄⁺ + NO₃⁻

The total number of ions is 2. The concentration of ions will be,

3.2 × 2 = 6.4 M

Hence, the highest conductivity will be of 2.1 M Na₃PO₄.

8 0
3 years ago
What is its molecular formula?​
uysha [10]

Answer:

C₆H₈O₆

Explanation:

The molecular formula of given compound is C₆H₈O₆. Because there are six carbon, six oxygen and eight hydrogen atom present in this compound.

The molecular weight of following compound is,

C₆H₈O₆

C = 12 amu

H = 1 amu

O = 16 amu

C₆H₈O₆ = 12×6 + 1×8 + 16×6

C₆H₈O₆ = 72 +8 + 96

C₆H₈O₆ = 176 g/mol

7 0
2 years ago
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