It's chlorine, it's one of the few elements with 7 valence electrons
Explanation:
The balanced chemical equation of the reaction is:
From the balanced chemical equation,
1 mole of propane forms ------ 3 mol. of 
gas.
The molar mass of propane is 44.1 g/mol.
One mole of any gas at STP occupies --- 22.4 L.
Hence, 44 g of propane forms (3x22.4 L=) 67.2 L of CO2 gas at STP.
Answer:
Thus, 67.2 L of CO2 is formed at STP.
Answer:
Explanation:
pH = 12
[H⁺] = 10⁻¹²
[OH⁻¹ ] [H⁺] = 10⁻¹⁴
[OH⁻¹ ] = 10⁻²
NaOH = Na⁺¹ + OH⁻¹
NaOH is a strong base so it dissociates 100%
[OH⁻¹ ] = 10⁻²
molarity of NaOH = 10⁻² M
= .01 M .
Answer:
The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the products.
Explanation:
The mass of the reactants and products are equal and are not dependent on the physical state of the substances.
Answer:
A. The human body can break down complex carbohydrates into sugar molecules that provide energy.
Explanation:
Strings of glucose, form complex carbohydrates such as starch and glycogen. Glycogen which is a stored form of glucose in humans is a source of long-term energy, and a complex carbohydrate because glycogen can be converted to glucose-1-phosphate which can enter the glycolytic cycle to generate Adenosine triphosphate which is a unit of energy.
This stored form of energy can be slowly broken down to release energy when needed by the body. During exercise, for instance, glycogen can slowly release ATP needed for energy.
