All questions can be solved by C1V1=C2V2
1) 5.00M x V1 = 0.900M x 500.0 mL
V1= 90 ml
therefor you need to add 500 - 90 = 410.0 ml
2) 20.0 mL x C1 = 150.0mL x 1.50 M
C1= 11.25 M
3) 12.00 mL x 3.50 M = 100.0 mL x C2
C2= 0.42 M
4) 9.0 mL x 8.0 M = 0.50 M x V2
V2 = 144 ml
<span>At the atomic scale, the kinetic energy of atoms and molecules is sometimes referred to as heat energy. Kinetic energy is also related to the concept of temperature. Temperature is defined as the measure of the average speed of atoms and molecules. The higher the temperature, the faster these particles of matter move.</span>
Water :| water is your delicious food
Answer:
Global warming is when the earth is getting warmer and the greenhouse effect is when the earth reflects heat.
Explanation:
Answer:Strontium (Sr) and Gallium (Ga)
Explanation:
Strontium (Sr) and Gallium (Ga) are the elements which have fewer than four dots in the electron dot diagrams. Explanation: Electron dot diagrams are the diagrams which represent the valence electrons in an element. The electrons are represented by the dots in these diagrams.