Answer:
Two nonmetals form a covalent bond
Explanation:
Because its a chemical bond that involves the sharing of electron pairs between atoms.
1. Moles Fe = 209.7 g/ 55.847 g/mol= 3.75
The ratio between Fe and CO is 2 : 3
Moles CO = 3.75 x 3 /2 = 5.63
<span>Mass CO = 5.63 mol x 28.01 g/mol= 157.7 g
2. </span><span />2Na + 2H2O --> 2NaOH + H2<span>atomic weight of sodium is 23 48.7/23 = 2.12 moles of sodium
2.12/2 x 24 = 25.44dm^3 hydrogen = 1.06 moles
so multiply it by Avogadro's number1.06 X 6.02x10^23 = 1.204x10^24 molecules of hydrogen
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Answer:
Muscle cramps are caused by the inability of myosin fibers to break free from the actin filaments during contraction, resulting in a prolonged contraction. A lack of ATP would obviously produce cramping, as myosin requires ATP to become free from actin.
Since the amount of decay is too much, the dental assistant should respond by advising the mother of the patient to reduce the quantity of sugary food intake and to enhance oral hygiene.
A dental assistant is an individual that are usually certified to assist dentists during dental treatment procedures.
During a dental procedure, they help to perform the following tasks:
- preparing patients for the treatment,
- passing dentists instruments and other materials, and
- keeping patients' mouths dry and clear using suction and other devices.
Tooth decay is the formation of a hole through the tooth cavity.
Tooth decay can occur in several areas when there is poor oral hygiene and excess intake of sugary foods.
When sugary food is taken in excess without proper oral hygiene, it reacts with plaque bacteria in the mouth producing acids.
The acid then dissolves your enamel slowly, creating the cavities in your teeth.
Therefore, the dental assistant should respond by advising the mother of the patient to reduce the quantity of sugary food intake and to enhance oral hygiene.
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REFRACTION IS THE BENDING OF A WAVE AS IT PASSES AT AN ANGLE FROM ONE MEDIUM TO ANOTHER. WHEN A WAVE MOVES FROM ONE MEDIUM TO ANOTHER, THE WAVE'S SPEED CHANGES. WHEN A WAVE ENTERS A NEW MEDIUM AT AN ANGLE, THE PART OF THE WAVE THAT ENTERS FIRST BEGINS TRAVELING AT A DIFFERENT SPEED FROM THE REST OF THE WAVE.
