1.Kolay
Carbon has an atomic mass of 12. What is the mass of 1 mole of carbon atoms?
- A6 g
- B1 g
- C12 g
- D24 g
Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı
2.Kolay
Hangi madde bir bazdır?
- AHidroklorik asit (HCl)
- BLimon suyu (sitrik asit)
- CSirke (asetik asit)
- DSodyum hidroksit (NaOH)
3.Kolay
According to the kinetic molecular theory, how do gas particles move?
- AOnly when heated, and then in neat lines between the walls
- BSlowly in fixed positions
- CConstantly, randomly and in straight lines between collisions
- DAlways in a single direction, set by the pull of gravity
4.Orta
What is 380 mmHg in atmospheres?
- A2 atm
- B380 atm
- C0,38 atm
- D0,5 atm
5.Orta
Al³⁺ ve O²⁻ iyonlarından oluşan alüminyum oksidin formülü nedir?
- AAl₃O₂
- BAl₂O₃
- CAlO
- DAlO₃
6.Orta
What is the formula of sodium sulfate, made from Na⁺ and SO₄²⁻ ions?
- ANa(SO₄)₂
- BNa₂SO₄
- CNa₄SO₂
- DNaSO₄
7.Zor
For N₂ + 3H₂ → 2NH₃, 1 mol of N₂ is mixed with 2 mol of H₂. Which reactant is limiting?
- AH₂, because 1 mol of N₂ would need 3 mol of H₂
- BN₂, because there is less of it
- CNH₃, because it is the product
- DNeither, because both are used up exactly
8.Zor
How many atoms in total are in 0,5 mol of water, H₂O?
- A6,02 × 10²³
- B1,81 × 10²⁴
- C3,01 × 10²³
- D9,03 × 10²³
Cevap anahtarı
- 1. C · 12 g
- 2. D · Sodyum hidroksit (NaOH)
- 3. C · Constantly, randomly and in straight lines between collisions
- 4. D · 0,5 atm
- 5. B · Al₂O₃
- 6. B · Na₂SO₄
- 7. A · H₂, because 1 mol of N₂ would need 3 mol of H₂
- 8. D · 9,03 × 10²³
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