Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What is the melting point of a substance?

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

What is the change from a gas to a liquid called?

1. ASublimation
2. BEvaporation
3. CCondensation
4. DFreezing

Hangi elementin sembolü K'dır?

1. APotasyum
2. BKarbon
3. CKripton
4. DKalsiyum

Sert, kapalı bir kapta bir gaz ısıtıldığında basıncına ne olur?

1. AAynı kalır
2. BArtar
3. CAzalır
4. DSıfıra düşer

__N₂ + __H₂ → __NH₃ denklemini hangi katsayılar denkleştirir?

1. A1, 1, 1
2. B2, 3, 2
3. C1, 3, 2
4. D1, 3, 1

Why does keeping food in a refrigerator slow down spoilage?

1. ALower temperatures slow down chemical and microbial reactions
2. BCold air contains no oxygen
3. CCold temperatures add preservatives to the food
4. DLower temperatures raise the activation energy of every reaction

Element A has 1 valence electron and element B has 7 valence electrons, both in period 3. Which statement best compares them?

1. ABoth are metalloids
2. BA is a reactive metal and B is a reactive nonmetal
3. CA is a nonmetal and B is a metal
4. DBoth are unreactive because they are in the same period

An element has the electron arrangement 2, 8, 8, 2. Where is it on the periodic table?

1. AGroup 4, period 2
2. BGroup 2, period 4
3. CGroup 8, period 2
4. DGroup 2, period 2