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miv72 [106K]
2 years ago
9

I just need the last one

Chemistry
1 answer:
Allisa [31]2 years ago
3 0
You can search all these questions up on the internet.
You might be interested in
What is an electrolyte?
malfutka [58]
The answer is: b. a compound that conducts electricity when dissolved in water or when molten.
The compound dissociates in water into mobile ions that are responsible for the transfer of charge. These ions are either positive or negative.
An example of an electrolyte is:
d. sodium hydroxide (naoh), which dissociates to give sodium ions (H+) and hydroxide ions ( OH)
8 0
2 years ago
List two examples of objects at home that use chemical energy and describe what the chemical energy is being transformed into.
mr_godi [17]

Answer: Batteries and Food

Explanation:

On the batteries that we use for example for a watch in the kitchen, occurs a chemistry reaction, called redox between Zn  and MnO2. The Zn is oxidized (in the anode)  and the MnO2 is reduced (in the cathode). In the oxidation, the athom loses electrons and in the reduction the opposites.

Regarding the chemical reactions that occur in the food that we consume, the hydrolisis that occurs in the stomach. The hydrochloric acid that is secreted in the stomach allows the activation of an enzyme, pepsinogen, which hydrolyzes the proteins present in the food consumed. That is, it hydrolyzes the peptide bonds of the proteins, which is between an amino and carboxyl bond of each amino acid that makes them up.

4 0
2 years ago
What is a physical change at a movie theater?
Bas_tet [7]
Chewing some popcorn
4 0
2 years ago
Read 2 more answers
En una planta de energía, se produce CO2 gracias a la reacción de combustión del material orgánico con oxígeno para producir CO2
Mamont248 [21]

Answer:

a. Gases ideales: relación entre todas las variables que influyen sobre los gases

Explanation:

La ecuación del gas ideal da la relación entre las variables; presión, volumen, temperatura y número de moles.

Según la ecuación del gas ideal; PV = nRT

P = presión del gas

V = volumen del gas

n = Número de moles del gas

R = constante de gas

T = temperatura del gas

El número de moles de SO2 se obtiene de;

n = PV / RT

n = 0,5 * 25 / 0,082 * 373

n = 12,5 / 30,586

n = 0,41 moles

6 0
2 years ago
Is energy absorbed or released during cellular respiration? <br><br>Absorbed <br><br>Released​
Lesechka [4]

Answer:

Released

Explanation:

they convert into a form of energy that can be used by cells

3 0
2 years ago
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