Preskoči na glavni sadržaj
Prijava
Sign up for FREE
arrow_back
Biblioteka

Pure Substances and Mixtures Content Quiz_23.24

star
star
star
star
star
Posljednje ažuriranje about 2 years ago
9
1
1
1
1

This is kachumbari. People eat it in East Africa.

2
Pitanje 1
1.

How are homogeneous mixtures and heterogeneous mixtures similar?

Pitanje 2
2.

How are pure substances and mixtures different?

This graph shows the effect of temperature on the time it takes salt to dissolve in water.

1
Pitanje 3
3.

How many minutes did it take for the salt to dissolve in cold water?

1
Pitanje 4
4.

In what temperature of water does salt dissolve the fastest?

Pitanje 5
5.

Salt water is a homogenous mixture. Can it be separated physically?

Pitanje 6
6.

Gold is an element. What is true about gold?

This is calcium carbonate.

1
Pitanje 7
7.

What is calcium carbonate?

1
Pitanje 9
9.

Is kachumbari an element, compound, homogeneous mixture (solution), or heterogeneous mixture? Why?

Kachumbari is a _____________________ because _________________________________.

Pitanje 8
8.

How do you know what calcium carbonate is?