Explanation

A fission reaction is a chemical reaction in which an atomic nucleus splits into smaller parts, releasing energy.

It typically occurs in nuclear reactors and atomic bombs.

Explanation

Curse means لعنت

Malediction means بدکاری

Evil means برائی

Explanation

As this diagram shows, pH ranges from 0 to 14, with 7 being neutral.

pH less than 7 are acidic.

pH greater than 7 are alkaline.

Explanation

An atomic bomb is based on the nuclear reaction known as nuclear fission,

A heavy atomic nucleus splits into two or more lighter nuclei, releasing a large amount of energy in an uncontrolled chain reaction.

The bombs dropped on Hiroshima and Nagasaki were examples of nuclear fission bombs, utilizing uranium-235 or plutonium-239 as the fissionable material. 

Explanation

"Combustion of methane" is an example of an exothermic reaction. 

Photosynthesis:

This is an endothermic reaction, meaning it absorbs energy from sunlight to produce glucose. 

Decomposition of calcium carbonate:

This is also an endothermic reaction, as it requires energy to break down calcium carbonate into calcium oxide and carbon dioxide. 

Electrolysis of water:

This is an endothermic reaction where electricity is used to split water into hydrogen and oxygen. 

Explanation

The oxidation of secondary alcohols produces ketones.

This reaction involves the loss of a hydrogen atom from the hydroxyl (-OH) group and a hydrogen atom from the alpha carbon (the carbon atom bonded to the -OH group),

Forming a double bond between the alpha carbon and the oxygen atom.  

Explanation

Gram-positive bacteria have a thick layer of peptidoglycan but lack the outer membrane containing lipopolysaccharides, which is characteristic of Gram-negative bacteria. 

Additional information:

Peptidoglycan: Gram-positive bacteria are defined by their thick layer of peptidoglycan. 

Cell wall: Gram-positive bacteria possess a cell wall composed primarily of peptidoglycan. 

Capsule: While not a defining feature of Gram-positivity, some Gram-positive bacteria can have a capsule.

Explanation

 In a capacitive circuit, the current leads the voltage. The phase difference between the two is 90°. 

Remember the relationship

A common mnemonic to remember the phase relationship in AC circuits is "ELI the ICE man": 

ELI: In an Electric circuit with an Load (inductor), the voltage (E) leads the current (I).

ICE: In a circuit with a Capacitor, the current (I) leads the voltage (E). 

Explanation

Herbivores:

An herbivore is an organism that feeds primarily or exclusively on plants and plant matter. 

Examples: Cows, sheep, and elephants. 

Carnivores:

A carnivore is an animal that eats only meat or the flesh of other animals. 

Examples: Lions, tigers, and hyenas. 

Omnivores:

An omnivore consumes a variety of materials, including both plants and animals. 

Examples: Humans, bears, and some ants. 

Explanation

An electric circuit is a closed path through which electric current flows.

It enabling the transfer of electrical energy.

Electric current is measured in amperes using an ammeter.