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geniusboy [140]
4 years ago
10

C+ZnO=Co+ZnO

Chemistry
1 answer:
masya89 [10]4 years ago
5 0

Answer:

Oxidizing agent: ZnO

Reducing agent: C

Substance Oxidizes: CO

Substance Reduced: Zn

Explanation:

<em>Oxidation</em> means the gain of oxygen atom but the lose of hydrogen atom.

<em>Reduction</em> means the lose of oxygen atom but the gain of hydrogen atom.

This is a <em>redox</em> reaction since both reactions are taking place.

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Please help me whoever answers I’ll mark the the brainiest.
nasty-shy [4]

Answer:

loptop ba yan isearch mo nalang

Explanation:

para makuha mo ang

gusto mong makuha

8 0
3 years ago
Which statement correctly describes metallic bonds?
lions [1.4K]

Answer: D

Explanation:

the atom of the metal loses one electron which becomes delocalised and is attragted by the positive nucleus leading to formation of metallic bond.

5 0
3 years ago
Before the introduction of chlorofluorocarbons, sulfur dioxide (entha;py of vapourization, 6.00 kcal/mol) was used in household
blondinia [14]

Answer: 367 grams

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

Enthalpy of vaporization is the amount of heat released when 1 mole of substance is converted from liquid to gaseous state.

Given : Enthalpy of vapourization of CCl_2F_2 = 17.4 kJ/mol

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

\text{Number of moles of}CCl_2F_2=\frac{1000g}{121g/mol}=8.3moles

1 mole of CCl_2F_2 produces heat = 17.4 kJ

8.3 moles of CCl_2F_2 produces heat = \frac{17.4}{1}\times 8.3=144 kJ

Given : Enthalpy of vapourization of SO_2 = 6.0 kcal/mol = 6\times 4.184=25.104kJ   (1kcal=4.184kJ)

25.104 kJ heat is produced by = 1 mole of SO_2

144 kJ  heat is produced by = \frac{1}{25.104}\times 144=5.73mole of SO_2

Mass of SO_2=moles\times {\text {molar mass}}=5.73\times 64=367g

Thus 367 grams  of SO_2 must be evoparated o remove as much heat as evaporation of 1.00 kg of CCl_2F_2

5 0
4 years ago
How does distance affect work pls quick its 15 points pls keep it short pls help!!!!
ra1l [238]
The simple equation used to calculate work is force multiplied by distance, thus as this is the case increasing the distance by a certain amount, assuming the force applied to the object is constant, the amount of work you are doing on the box for instance pushing it, is going to be greater

Since you are pushing the box with the same force covering a greater distance with the force.
4 0
3 years ago
The crack shown in the lithosphere was created by the movement of two or more tectonic plates. What is this crack called
nikitadnepr [17]

Answer:

The lithosphere is made up of pieces of tectonic plates. These plates are constantly changing and move towards the mantle. Non-stop movement of tectonic plates causes stress on the earth's outermost layer i.e,the crust. When these stresses extends it leads to cause cracks called faults.

Explanation:

4 0
3 years ago
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