salt is an ionic compound containing anions and cations. when dissolved in bodily fluids (water),...

Forms of Energy

Bellringer• Salt is an ionic compound containing anions and

cations. When dissolved in bodily fluids (water), salts easily ___________________. Why does this happen?

 • Because ions are CHARGED particles, all salts are

___________________.

• Is an acid a proton donor or proton acceptor?

• A pH of 8.5 is acidic or basic?

• A pH of 2.7 is acidic or basic?

Amazing Energy Facts• https://www.youtube.com/watch?v=TnNixMosUIo

Concepts of Matter

• Physical Changes: DO NOT alter the basic nature of the substance

• Chemical Changes: DO alter the composition of the substance

ENERGY• Massless and does not take up space

Chemical Energy

Chemical Energy• Stored in bonds of chemical substances

• When bonds are broken energy is released

• Examples?

Chemical Energy

Electrical Energy

Electrical Energy• From the movement of charged particles

• Generated when ions (charged particles) move across cell membranes

• Other examples?

Electrical Energy• From the movement of charged particles

• Generated when ions (charged particles) move across cell membranes

Electrical Energy

Electrical Energy

Electrical Energy

Mechanical Energy

Mechanical Energy

Mechanical Energy• DIRECTLTY involved in moving matter

• Musculoskeletal movement

Radiant Energy

Radiant Energy• Travels in waves

• X-rays, infrared radiation (heat), visible light, radio and UV waves

• Light energy stimulates retina in the eye

• UV light – vitamin D