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2 years ago

Name a non metal which conducts electricity

Chemistry

1 answer:

Nuetrik [128]2 years ago

8 0

Answer:

Graphite

Graphite is a non-metal and it is the only non-metal that can conduct electricity.

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How much heat is absorbed by 20g granite boulder as energy from the sun causes its temperature to change from 10°C to 29°C? The

Nataly [62]

Given :

Mass of granite , m = 20 g .

Change in temperature , $\Delta T=29-10=19^oC$ .

Specific heat capacity of granite , $C=0.79\ J/g^oC$ .

To Find :

The heat absorbed by granite .

Solution :

We know , heat absorb is given by :

$\Delta H=mC\Delta T\\\\\Delta H=20\times 0.79 \times 19 \ J\\\\\Delta H=300.2\ J$

Therefore , heat absorb is 300.2 J .

Hence , this is the required solution .

4 0

3 years ago

An organic compound of relative molecular mass 46,on analysis was found to contain 52.0% carbon, 13.3% hydrogen and 34.7% oxygen

Nadya [2.5K]

Answer:

Empirical formula is C₂H₆O.

Explanation:

Empirical formula:

It is the simplest formula gives the ratio of atoms of different elements in small whole number

Given data:

Percentage of hydrogen = 13.3%

Percentage of carbon = 52.0%

Percentage of oxygen = 34.7%

Empirical formula = ?

Molecular formula = ?

Solution:

Number of gram atoms of H = 13.3 / 1.01 = 13 .17

Number of gram atoms of O = 34.7 / 16 = 2.17

Number of gram atoms of C = 52.0 / 12 = 4.3

Atomic ratio:

C : H : O

4.3/2.17 : 13.17/2.17 : 2.17/2.17

2 : 6 : 1

C : H : O = 2 : 6 : 1

Empirical formula is C₂H₆O.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

n = 46 / 158

The relative molecular mass of compound is not correct.

4 0

3 years ago

Disadvantages of biodegradable plastics

natita [175]

1) The main disadvantage of bio plastics is that when they break down , carbondioxide is released and results into global warming.

2) They are designed to be composted , not recycled.

3) fewer proper composting availability.

4) plants grown for bioplastics have negative impacts of their own.

4 0

4 years ago

Determine if the phrases below are true for catabolic pathways only, anabolic pathways only,or can apply to both pathways, by so

Ivan

Answer:

Catabolic pathways;

Pathway produces more ATP than it consumes

Supplies NADH for oxidative phosphorylation

Anabolic pathways only:

Consumes more ATP than it produces

Can require reducing agent

Both pathways;

At least one enzyme is regulated

All reactions are catabolized by enzymes

One or more reactions are endergonic without ATP

Explanation:

Catabolic pathways;

Complete oxidation of glucose and then produces more ATP. Oxidative phosphorylation is an example of catabolic pathway.

From the given following conversions are considered as catabolic pathways.

Pathway produces more ATP than it consumes

Supplies NADH for oxidative phosphorylation

Anabolic pathways:

Anabolic pathways produces new molecules and it requires energy in the form of ATP for the formation of new bonds.

From the given following conversions are considered as anabolic pathways.

Consumes more ATP than it produces

Can require reducing agent.

Both pathways;

Metabolic pathways are occuring in the cell only few enzymes are regulate these pathways.

At least one enzyme is regulated

All reactions are catabolized by enzymes

One or more reactions are endergonic without ATP

6 0

4 years ago

What causes the lithospheric plates to move

Charra [1.4K]

Answer:

The heat from the Earth's cores radioactive process makes the lithospheric plates move sometimes away or toward each other.

Hope it helps :)

7 0

3 years ago

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