Question

TRUE / FALSE
1.Water is homogenous substance.
2.Element is always metal.
3.Substance is always homogeneous
4.In compound elements combine in definite proportion. 5.Iodine can be purified by sublimation.
6.Mixtures are always combinations of the same compounds that are at different states. 7.We can separate all mixtures by filtration.
8.All mixtures are defined as “ heterogeneous”
9.Only specific compounds can be combined to form mixtures.
10.No pure elements are liquids at room temperature.
11.Mixtures are combinations of one or more compounds that can be separated with chemical processes.
12.Crystals can be made of mixtures.

Answer 1

Answer:

The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, the dwarf planets and small Solar System bodies.

Known planets: 8 (Mercury; Venus; Earth; Mars; Jupiter; Saturn; Uranus; Neptune)

Known dwarf planets: 2 universally accepted: (Pluto; Eris); 1 more likely to be: (Ceres); ...

Known minor planets: 796,354

System mass: 1.0014 Solar masses