Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What is osmosis?

1. AThe movement of solute particles against a gradient using energy
2. BThe dissolving of a gas in a liquid
3. CThe movement of water across a semipermeable membrane
4. DThe breaking of a solid into ions

What is a dilute solution?

1. AOne with a large amount of solute in a little solvent
2. BOne in which the solute has reacted with the solvent
3. COne with no solvent at all
4. DOne with a small amount of solute in a lot of solvent

Elements in the same period of the periodic table have the same number of what?

1. AProtons
2. BOccupied electron shells
3. CValence electrons
4. DNeutrons

Hangi değişiklik bir parça tebeşirin asitle daha hızlı tepkime vermesini sağlar?

1. ATebeşiri toz hâline getirmek
2. BTek büyük bir tebeşir parçası kullanmak
3. CAsidi buzdolabında soğutmak
4. DAsidi daha fazla suyla seyreltmek

How many molecules are in 2 mol of carbon dioxide?

1. A2,00 × 10²³
2. B3,01 × 10²³
3. C6,02 × 10²³
4. D1,20 × 10²⁴

A radioactive isotope has a half-life of 5 days. A sample starts with 80 g. How much is left after 10 days?

1. A40 g
2. B20 g
3. C0 g
4. D10 g

__Fe + __O₂ → __Fe₂O₃ denklemini en küçük tam sayılarla denkleştirin. Katsayılar nelerdir?

1. A2, 1, 1
2. B4, 3, 2
3. C4, 3, 4
4. D2, 3, 1

Marble chips react with hydrochloric acid, giving off CO₂. The gas is produced quickly at first, then more and more slowly. Why does the rate fall?

1. AThe products act as a catalyst that slows the reaction down
2. BThe CO₂ produced turns back into acid
3. CThe acid concentration falls as it is used up, so collisions become less frequent
4. DThe activation energy steadily increases as the reaction goes on