Answer:
Double Displacement Reaction
Explanation:
A double displacement reaction is a type of chemical reaction in which the reactant ions exchange places to form new products. Usually, a double displacement reaction results in precipitate formation.
Answer:
true
true
Explanation:
pki points nmn po
b.0.997 M
c.0.180 M
d.0.156 M
e.55.3 M
Answer:
55.3 M
Explanation:
Given temperature = 25°C
Density = 0.997 g/mL
Based on density the mass of water per L = 997 grams
The molar mass of water = 18
The moles of water =
The molarity is defined as the moles of water per litre.
The moles = 55.3
Volume = 1 L
So molarity = 55.3 /1 = 55.3 M
For the given chemical reaction, 15 moles of sulfur are required to produce 15 moles of sulfur dioxide.
A chemical equation can be defined as a representation of a chemical reaction in the form of symbols of the substances. A chemical equation consists of contributing reactants in the reaction, formed products, and their physical states.
The chemical equation in which the number of atoms of each element is equal on both sides of the equation is called a balanced chemical equation.
The law of conservation of mass follows by a balancing of a chemical equation therefore, the total mass of the elements on the reactant side must be equal to the total mass of elements on the product side.
Given, the chemical equation is: S + O₂ → SO₂
From the above equation, we can say that one mole of sulfur produces one mole of sulfur dioxide.
Given the moles of the sulfur dioxide = 15 moles
The moles of sulfur required to make 15 moles of sulfur = 15 moles
Therefore, 15 moles of sulfur are required for the given conditions.
Learn more about the balanced chemical equation, here:
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(2) calcium (4) magnesium
Lithium is an element that has chemical properties most similar to sodium.
Out of the given options, lithium is the element that has chemical properties most similar to sodium.
Sodium and lithium are both in Group 1 of the periodic table, also known as the alkali metals. Alkali metals have similar properties because they all have one valence electron, which makes them highly reactive.
For example, like sodium, lithium reacts vigorously with water to produce hydrogen gas and a hydroxide:
2Li(s) + 2H2O(l) → 2LiOH(aq) + H2(g)
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