Answer: 12 neutrons
Explanation: The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass). Sodium has a mass number of 23amu. Since sodium has 11 protons, the number of neutrons must be 23 – 11 = 12 neutrons.
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q = mC∆T
q = (30.0g)(0.900J/goC)(50oC)
q = 1350 J
So, the right answer is 1350 J
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Answer:
Protecting group
Explanation:
TMS groups can be used as protecting and leaving groups for the synthesis of siloxane-based molecules. It is also used as protecting group for alcohols.
A protecting group is a temporary group added during organic synthesis to prevent a portion of molecule from reacting.
Answer:
Liquids
Note: the attachment below shows the properly arranged chart
Explanation:
The order of molecular motion of matter from fastest to slowest is;
Plasma>Gases>Liquids>Solids
Liquids move faster than solids not slower.
Answer: :Change in thermal energy = mass x specific heat capacity x change in temperature.
Explanation: what it basically means is mass x heat x the change in temperature.