Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What kind of carbon–carbon bonds do alkanes contain?

1. AAt least one double bond
2. BIonic bonds
3. COnly single bonds
4. DAt least one triple bond

What is radioactivity?

1. AThe flow of electrons through a metal wire
2. BThe release of radiation by unstable atomic nuclei
3. CThe release of heat and light when fuels burn in air
4. DThe glow produced by any hot object

What are the units of molarity?

1. AGrams of solute per 100 g of solution
2. BGrams of solute per litre of solution (g/L)
3. CMoles of solute per kilogram of the solvent used
4. DMoles of solute per litre of solution (mol/L)

Uranium-235 and uranium-238 both have 92 protons. How many more neutrons does an atom of uranium-238 have?

1. A146
2. B0
3. C92
4. D3

Which list is in order from smallest to largest mass?

1. AMilligram, gram, kilogram
2. BGram, milligram, kilogram
3. CKilogram, gram, milligram
4. DMilligram, kilogram, gram

Al³⁺ ve O²⁻ iyonlarından oluşan alüminyum oksidin formülü nedir?

1. AAl₃O₂
2. BAlO₃
3. CAl₂O₃
4. DAlO

In the Bohr model, what happens when an electron drops from a higher energy level to a lower one?

1. AEnergy is released, often as light
2. BEnergy is absorbed from the surroundings
3. CThe electron leaves the atom
4. DThe atom gains a proton

A solution of a strong acid has pH 2. It is diluted with water to 10 times its original volume. What is the new pH?

1. A0,2
2. B1
3. C3
4. D20