Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What are the usual units of molar mass?

1. Ag/mol
2. Bg/L
3. Cmol/L
4. Dmol/g

What is the formula of methane, the main gas in natural gas?

1. ACH₂
2. BC₂H₆
3. CCH₄
4. DCO₂

For a given substance, in which state do its particles move fastest?

1. AThey move at the same speed in all states
2. BSolid
3. CLiquid
4. DGas

What is the shape of a water molecule?

1. AFlat triangle
2. BLinear
3. CBent
4. DTetrahedral

When the diaphragm contracts and the chest cavity gets bigger, what happens to the air pressure inside the lungs?

1. AIt rises, so air flows in
2. BIt falls, so air flows in
3. CIt does not change
4. DIt falls, so air flows out

How is 0,00045 written in scientific notation?

1. A4,5 × 10⁴
2. B4,5 × 10⁻³
3. C4,5 × 10⁻⁴
4. D4,5 × 10⁻⁵

Which substance has the lowest boiling point?

1. AHelium
2. BIron
3. CWater
4. DSodium chloride

Orange bromine water is shaken with two hydrocarbons. With hexene it turns colourless; with hexane it stays orange. What does this show?

1. AHexene is an alcohol and hexane is an acid
2. BHexene contains a C=C double bond; hexane does not
3. CBoth contain double bonds, but hexane reacts more slowly
4. DHexane contains a C=C double bond; hexene does not