Test chapter 3 Building blocks of substances shorter

• Scheikunde
• Middelbare school
• vwo
• Leerjaar 3

Test chapter 3, Building blocks of substances

You have 20 minutes of time to finish this test. 

Make certain you have access to your book, notes and calculator. If you need to make a chemical reaction, don't forget the phase indication.

Here are two statements:

I It is easy to compress liquids

II You can make a liquid by compressing a gas

Which of these statements is/are true?

1. None
2. Only I
3. Only II
4. Both

When the temperature becomes lower...

1. molecules will move more slowly
2. molecules will move faster
3. molecules will vibrate faster
4. diffusion will increase in speed

The solid substance of iron has a higher density then iron in its molten liquid form

1. correct
2. incorrect

Here are two statements:

I FeO is a mixture of iron and oxygen

II  FeO is a molecule

Which of these statements is/are true?

1. None
2. Only I
3. Only II
4. Both

Explain what the difference is between a phase change and a chemical reaction

Give the written chemical reaction that happens when ammonia gas is being made from hydrogen gas and nitrogen gas. Don't forget to include the phases

The metals Ag and Au do occur as a pure substances in nature, the metals Zn and Pb do not. Explain why this is.

The elements Chlorine, Bromine, Fluorine and Iodine are all part of which group?

1. Noble Gasses
2. Alkali Metals
3. Precious Metals
4. Halogens

What is the atomic mass of Pd?

Calculate the total molecular mass of

13C​11​​H​22​​O​11​​

Calculate the mass percentage of Na in a molecule of NaCl (Sodiumchlorine)

How many protons, electrons and neutrons does Pu-236 have?