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3 years ago

Food engineering is a field that focuses on

Chemistry

2 answers:

noname [10]3 years ago

7 0

Food engineering is field that focus on application of engineering to the production and distribution of food.

erma4kov [3.2K]3 years ago

3 0

Food engineering combines physical sciences, microbiology and engineering for the efficient production of food.

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Dose mitochondria make necessary chemicals for the cell

Bezzdna [24]

Yes mitochondria does make necrssary chemicals for the cell therefore the answer to your question is yes

5 0

3 years ago

Phosphorus will ____ electrons to complete its octet changing into an ____

Paraphin [41]

Steal; Anion
This is the answer because phosphorous is very electronegative.

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3 years ago

When HClO2 is dissolved in water, it partially dissociates according to the equation

Natasha_Volkova [10]

Answer:

x = 100 * 1.1897 = 118.97 %, which is > 100 meaning that all of the HClO2 dissociates

Explanation:

Recall that , depression present in freezing point is calculated with the formulae = solute particles Molarity x KF

0.3473 = m * 1.86

Solving, m = 0.187 m

Moles of HClO2 = mass / molar mass = 5.85 / 68.5 = 0.0854 mol

Molality = moles / mass of water in kg = 0.0854 / 1 = 0.0854 m

Initial molality

Assuming that a % x of the solute dissociates, we have the ICE table:

HClO2 H+ + ClO2-

initial concentration: 0.0854 0 0

final concentration: 0.0854(1-x/100) 0.0854x/100 0.0854x / 100

We see that sum of molality of equilibrium mixture = freezing point molality

0.0854( 1 - x/100 + x/100 + x/100) = 0.187

2.1897 = 1 + x / 100

x = 100 * 1.1897 = 118.97 %, which is > 100 meaning that all of the HClO2 dissociates

3 0

3 years ago

Two 10g blocks, one of copper and one of iron, were heated from 300 K to 400K (a temperature difference of 100 K).

12345 [234]

1) 385 J

2) 450 J

Explanation:

The amount of energy that must be absorbed by a certain substance in order to increase its temperature by $\Delta T$ is given by the equation:

$Q=mC\Delta T$

where

m is the mass of the substance

C is its specific heat capacity

$\Delta T$ is the increase in temperature of the substance

For the block of copper in this problem, we have:

m = 10 g is the mass

$C=0.385 J/gK$ is the specific heat capacity of copper

$\Delta T=400-300 = 100 K$ is the change in temperature

So, the energy absorbed by the block of copper is

$Q=(10)(0.385)(100)=385 J$

Similarly for the block of iron, the energy absorbed by the iron is given by

$Q=mC\Delta T$

where

m is the mass of the block of iron

C is its specific heat capacity of iron

$\Delta T$ is the increase in temperature of the block

Here we have:

m = 10 g is the mass of the block

$C=0.450 J/gK$ is the specific heat capacity of iron

$\Delta T=400-300 = 100 K$ is the change in temperature

So, the energy absorbed by the block of iron is

$Q=(10)(0.450)(100)=450 J$

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2 years ago

Explain how CO2 is absorbed into the ocean of H2O

Dmitrij [34]

The ocean absorbs CO2 from the atmosphere wherever air meets water. Wind causes waves, giving more opportunity for the water to absorb the carbon dioxide.

7 0

3 years ago