Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

Sodyum klorürü (sofra tuzu) bir arada tutan bağ türü hangisidir?

1. AMetalik bağ
2. Bİyonik bağ
3. CKovalent bağ
4. DHidrojen bağı

Which property is typical of nonmetals?

1. AThey are poor conductors of heat and electricity
2. BThey easily lose electrons to form positive ions
3. CThey are shiny and easily bent into wires
4. DThey are all solids at room temperature

Periyodik tablonun dikey sütununa ne denir?

1. ASeri
2. BGrup
3. CPeriyot
4. DKabuk

Which is larger, a sodium atom (Na) or a sodium ion (Na⁺)?

1. AIt depends on the temperature
2. BThe sodium ion
3. CThey are the same size
4. DThe sodium atom

Normal saline (0,9% NaCl) is used for IV fluids. How is it described compared with blood?

1. AHypotonic
2. BHypertonic
3. CSaturated
4. DIsotonic

What is the molar mass of sulfuric acid, H₂SO₄ (H = 1, S = 32, O = 16 g/mol)?

1. A98 g/mol
2. B50 g/mol
3. C96 g/mol
4. D49 g/mol

Which list puts 0,1 M solutions of HCl, acetic acid (CH₃COOH) and NaCl in order of increasing pH?

1. AHCl < NaCl < CH₃COOH
2. BCH₃COOH < HCl < NaCl
3. CHCl < CH₃COOH < NaCl
4. DNaCl < CH₃COOH < HCl

The true volume in a flask is 10,0 mL. A student measures it three times and gets 8,1 mL, 8,1 mL and 8,2 mL. How are these results best described?

1. AAccurate but not precise
2. BPrecise but not accurate
3. CBoth accurate and precise
4. DNeither accurate nor precise