Answer:
An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like Earth or the moon. Many planets have moons that orbit them.
Rock cycle - a process in which a rock forms, changes from one type of rock to another, forms again by processes on and in the Earth.
Metamorphic Rock - Rocks changed by intense heat or extreme pressure.
Sedimentary Rock - A rock that forms when sediments are compacted and cemented together.
Igneous Rock - A rock that forms when molten rock cools and hardens.
Iodine has 7 valence electrons. It needs therefore only 1 electron to be stable this is why it is so reactive.
Answer:
exothermic reaction
Explanation:
The definition of exothermic is:
describing a process that involves the release of energy into the surroundings by substances undergoing change.
Think of<em> ex</em>-othermic as energy exiting/ released and <em>en</em>-dothermic as energy entering.
Answer:
cần 162,5
Explanation:
100gKNO3 cần 1 mol kno3 từ đó suy ra cần 0,5 mol hg(no3)2 suy ra cần 162,5g hg(no3)2
