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Rama09 [41]
3 years ago
9

How can we solve food insecurity while reducing food waste?

Chemistry
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

donate unused food to food banks

Explanation:

Becuse food banks processes food to make very fine particles which is mixed with soil and can be given to the plants

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if the Celsius temperature of a gas at constant pressure is increased from 10 Celsius to 20 Celsius the volume is
svet-max [94.6K]

Answer:

               The volume is increased.

Explanation:

                     According to <em>Charles' Law</em>, " <em>at constant pressure the volume and temperature of the gas are directly proportional to each other</em>". Mathematically this law is presented as;

                                                    V₁ / T₁ = V₂ / T₂   -----(1)

In statement the data given is,

T₁  =  10 °C  =  283.15 K                    ∴  K  =  273.15 + °C

T₂  =  20 °C  =  293.15 K

So, it is clear that the temperature is being increased hence, we will find an increase in volume. Let us assume that the starting volume is 100 L, so,

V₁  =  100 L

V₂  =  Unknown

Now, we will arrange equation 1 for V₂ as,

                                                    V₂  =  V₁ × T₂ / T₁

Putting values,

                                     V₂  = 100 L × 293.15 K / 283.15 K

                                     V₂  = 103.52 L

Hence, it is proved that by increasing temperature from 10 °C to 20 °C resulted in the increase of Volume from 100 L to 103.52 L.

3 0
3 years ago
When you live in a cold place and you're planning a vacation for February, are you interested in a location's weather or climate
Dahasolnce [82]

Answer:

It depends on what type of environment you are looking for. If you are looking for a warmer climate, warm weather and temperature is important. If you are looking for a cooler climate, you should look for colder weather and temperature. Humidity, geographical location, plant growth and foliage and elevation are also important when looking for a place to vacation.

Explanation:

5 0
3 years ago
What can happen when earth materials overcome the force of friction holding them together?
gizmo_the_mogwai [7]
The answer is B), a landslide.
5 0
3 years ago
PLS help, 20 points for you<br><br> I need a Molecular, and Ionic equations:<br> H2CO3 + LiOH -
STatiana [176]

The molecular equation of H₂CO₃ and LiOH:

H₂CO₃ (aq) + 2LiOH (aq) →  Li₂CO₃ (aq)  + 2H₂O (l)

The net ionic equation of the reaction of H₂CO₃ and LiOH:

H⁺ (aq)  + OH⁻ (aq)  →  H₂O (l)

<h3>What are the net ionic equations?</h3>

The net ionic equation of a chemical reaction can be described as an equation that expresses only those ions, elements, or compounds, that directly contributed to that chemical reaction.

The chemical equation for the reaction of H₂CO₃ and LiOH:

H₂CO₃ (aq) + LiOH (aq) →  Li₂CO₃ (aq)  + 2H₂O (l)

The complete ionic equation for the above reaction H₂CO₃ and LiOH is:

2H⁺ (aq) +  CO₃²⁻ (aq) + 2Li⁺ (aq) + 2OH⁻  → 2Li⁺ (aq) + CO₃²⁻(aq) + 2H₂O (l)

In the ionic equation, the Lithium and carbonate ions appear unchanged on both sides of the equation. When we mix the two solutions, neither the Lithium nor carbonate ions participate in the reaction. So Lithium and carbonate ions can be eliminated from the ionic equation.

H⁺ (aq)  + OH⁻ (aq)  →  H₂O (l)

Learn more about the net ionic equation, here:

brainly.com/question/15466794

#SPJ1

6 0
1 year ago
A solution is made containing 14.6g of CH3OH in 185g H2O.1. Calculate the mole fraction of CH3OH.2. Calculate the mass percent o
Andre45 [30]

Answer:

* x_{CH_3OH}=0.0425

* \%m/m_{CH_3OH}=7.31\%

* m=2.46m

Explanation:

Hello,

In this case, for the mole fraction of methanol we use the formula:

x_{CH_3OH}=\frac{n_{CH_3OH}}{n_{CH_3OH}+n_{water}}

Thus, we compute the moles of both water (molar mass 18 g/mol) and methanol (molar mass 32 g/mol):

n_{CH_3OH}}=14.6g*\frac{1mol}{32g}=0.456molCH_3OH \\\\n_{water}}=185g*\frac{1mol}{18g}=10.3molH_2O

Hence, mole fraction is:

x_{CH_3OH}=\frac{0.456mol}{0.456mol+10.3mol}\\\\x_{CH_3OH}=0.0425

Next, mass percent is:

\%m/m_{CH_3OH}=\frac{m_{CH_3OH}}{m_{CH_3OH}+m_{water}}*100\%\\\\\%m/m_{CH_3OH}=\frac{14.6g}{14.6g+185g}*100\%\\\\\%m/m_{CH_3OH}=7.31\%

And the molality, considering the mass of water in kg (0.185 kg):

m=\frac{n_{CH_3OH}}{m_{water}} =\frac{0.456mol}{0.185kg}\\ \\m=2.46m

Regards.

7 0
3 years ago
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