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Biblioteka

year 9 Science Homework Week 4

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Posljednje ažuriranje almost 5 years ago
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Pitanje 1
1.

What does ductile mean?

Pitanje 2
2.

What does malleable mean?

Pitanje 3
3.

What does lustrous mean?

Pitanje 4
4.

Which of these is a physical property?

Pitanje 5
5.

Which of these will rust?

Pitanje 6
6.

A.Corrosion is the destruction of materials by chemical ___________ with substances in the ____________.

Pitanje 7
7.

A.Rusting is the corrosion of

Pitanje 8
8.

iron + water + _________ → ____________________

Pitanje 9
9.

A chemical reaction always results in the production of a new __________.

Pitanje 10
10.

What increases the speed of corrosion?

Pitanje 11
11.

Why are the bottom of boats painted?

Pitanje 12
12.

What is galvanisation?

Pitanje 13
13.

Which of these statements is correct?

Pitanje 14
14.

Predict which of these metals has the highest melting point?

Pitanje 15
15.

Predict which metal is likely to be least reactive?