CHEMISTRY PART 2.

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Presentation transcript:

CHEMISTRY PART 2

MIXTURE Combination of substances in which individual substances retain their own properties Ex: chex mix

SOLUTION Mixture in which 1 or more substances are distributed evenly in another substance Ex: salt & water Solute: the substance being dissolved Ex: salt Solvent- the substance doing the dissolving Ex: water Each substance can be recovered

CHEMICAL REACTIONS Bonds between atoms are formed or broken Substance changes into a different substance

METABOLISM All the chemical reactions that occur within an organism Breaks down and builds molecules

CHEMICAL EQUATION Represents a chemical reaction by using chemical symbols and formulas Na + Cl NaCl (reactants) (products) Equations must be balanced CH4 + 2O2 CO2 + 2H2O

Photosynthesis reaction 6CO2 + 6H2O + light C6H12O6 + 6O2

Respiration Reaction C6H12O6 + 6O2 6CO2 + 6H2O + energy

NUTRITION LABELS

Taco Bell 7-layer burrito

McDonald’s Big Mac

Chick-Fil-A chicken sandwich

Subway turkey sandwich

Lay’s Plain Salted Potato chips

1 cup of cooked broccoli

Cooked Tuna

Plain Cheerios