Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What is the term for anything that has mass and takes up space?

1. AMatter
2. BForce
3. CHeat
4. DEnergy

According to collision theory, what must happen for particles to react?

1. AThey must stay completely still next to each other
2. BThey must collide with enough energy and the right orientation
3. CThey must both be in the solid state at the same time
4. DThey must have the same mass

What is the melting point of a substance?

1. AThe temperature at which its solid turns into a liquid
2. BThe temperature at which it dissolves in water
3. CThe temperature at which its liquid turns into a gas
4. DThe temperature at which it catches fire

How many covalent bonds does a carbon atom usually form?

1. A4
2. B2
3. C3
4. D1

Güçlü bir asidi hangi ifade tanımlar?

1. ASuda tamamen iyonlaşır
2. BpH değeri 7'nin üzerindedir
3. CHidrojen iyonlarını yalnızca kısmen verir
4. DHer zaman çok derişiktir

Which reacts more vigorously with water, potassium or sodium?

1. AThey react equally, because both are in group 1
2. BSodium, because its outer electron is farther from the nucleus
3. CPotassium, because its outer electron is farther from the nucleus
4. DSodium, because it has fewer electron shells to shield its electron

N₂ + 3H₂ → 2NH₃ denkleminde, fazla hidrojenle 1 mol N₂'den kaç gram amonyak (17 g/mol) yapılabilir?

1. A28 g
2. B17 g
3. C34 g
4. D51 g

Bir çözeltinin hidrojen iyonu derişimi 1 × 10⁻⁹ mol/L'dir. pH değeri nedir ve asidik midir, bazik midir?

1. ApH −9, asidik
2. BpH 9, bazik
3. CpH 5, asidik
4. DpH 9, asidik