정답이 있는 간호학 입학 시험 대비 화학 학습지

Apart from mercury, which element is a liquid at room temperature?

1. AIodine
2. BChlorine
3. CSodium
4. DBromine

원자들 사이에 전자를 공유할 때 만들어지는 결합은 무엇인가요?

1. A공유 결합
2. B이온 결합
3. C금속 결합
4. D핵 결합

In a chemical reaction, what is the limiting reactant?

1. AThe reactant that runs out first and stops the reaction
2. BThe reactant that is left over at the end
3. CThe catalyst that controls the speed
4. DThe reactant with the largest mass

Which statement describes a saturated fat?

1. AIts fatty acid chains have no carbon–carbon double bonds
2. BIts fatty acid chains have many carbon–carbon double bonds
3. CIt contains no carbon atoms
4. DIt is always liquid at room temperature

A reaction has a theoretical yield of 20 g, but only 15 g of product is collected. What is the percent yield?

1. A75%
2. B133%
3. C25%
4. D5%

Which assumption is made about an ideal gas?

1. AIts particles are large, closely packed and strongly attracted
2. BIts particles lose energy in every collision
3. CIts particles stay still at room temperature
4. DIts particles have no attraction to each other

어떤 물질 10 g을 물에 녹여 용액 250 mL를 만들었습니다. 농도는 몇 g/L인가요?

1. A25 g/L
2. B0.04 g/L
3. C40 g/L
4. D2.5 g/L

A solution of a strong acid has pH 2. It is diluted with water to 10 times its original volume. What is the new pH?

1. A3
2. B20
3. C1
4. D0.2