Answer:
362,5J
Explanation:
formula for calculating Gravitational Potential Energy is mass×gravitational field strength ×height
12.5×10×2.9=362,5J
Answer:
An aqueous solution of
will be an acid and have a pH of less than 7.
An aqueous solution of
will be a neutral solution and have a pH equal to 7.
An aqueous solution of
will be an base and have a pH of more than 7.
Explanation:
pH is defined as the negative logarithm of the concentration of hydrogen ions.
Thus,
pH = - log [H⁺]
pH scale generally runs from 1 to 14 where pH = 7 represents neutral medium, pH < 7 represents acidic medium and pH > 7 represents basic medium.
Thus,
<u>An aqueous solution of
will be an acid and have a pH of less than 7.</u>
<u>An aqueous solution of
will be a neutral solution and have a pH equal to 7.</u>
<u>An aqueous solution of
will be an base and have a pH of more than 7.</u>
I think it's either B or D
Explanation:
it really depends on how differently shaped the beakers are sorry if this doesn't help very much
Answer: metal and carbonate
Explanation:
According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions
when dissolved in water and an acid is defined as a substance which donates hydrogen ions
in water.
An acid is represented as :

1. When metal is treated with an acid such as
, if the metal is more reactive than hydrogen displaces hydrogen from its salt solution and thus produce zinc chloride and hydrogen gas.
2. When carbonates are treated with acid, double displacement takes place ad carbon dioxide is released as a gas.

It is determined by its ELECTRIC CONFIGURATION.