Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

According to the kinetic molecular theory, how do gas particles move?

1. AAlways in a single direction, set by the pull of gravity
2. BConstantly, randomly and in straight lines between collisions
3. COnly when heated, and then in neat lines between the walls
4. DSlowly in fixed positions

Katalizör ne yapar?

1. ATükenmeden tepkimeyi hızlandırır
2. BTepkimenin ürünlerini değiştirir
3. CTepkime için girenleri sağlar
4. DTepkimeyi yavaşlatır ve tükenir

Which process is exothermic (releases heat)?

1. AEvaporating water
2. BPhotosynthesis
3. CBurning methane gas
4. DMelting a block of ice

Oxygen has 8 electrons. What is its electron configuration?

1. A1s² 2p⁶
2. B1s² 2s² 2p⁴
3. C1s² 2s⁶
4. D1s² 2s² 2p⁶

When diluting a concentrated acid, which method is safe?

1. AAdd the water quickly to the acid
2. BMix them in any order, as long as it is fast
3. CAdd the acid slowly to the water
4. DAdd the water slowly to the acid

What is the mass of 0,5 mol of NaCl (molar mass 58,5 g/mol)?

1. A117 g
2. B29,25 g
3. C0,5 g
4. D58,5 g

Water is split as 2H₂O → 2H₂ + O₂. What volume of O₂ at STP (0 °C and 1 atm) forms from 2 mol of water?

1. A22,4 L
2. B44,8 L
3. C11,2 L
4. D67,2 L

How many millilitres of 0,2 M NaOH are needed to neutralise 25 mL of 0,1 M HCl?

1. A25 mL
2. B50 mL
3. C5 mL
4. D12,5 mL