'Na cl 2 nacl' diaporamas de présentation

EOG Review

Students will need a calculator and a periodic table!. EOG Review. Science 8 th grade. An atom is composed of protons, electrons, and neutrons. What is the electric charge on the proton?. 0 -1 +1 +2. The organelle that is responsible for making glucose is the ____. Mitochondria

857 views • 84 slides

553 views • 55 slides

562 views • 39 slides

Technical Science Introduction to Chemistry

496 views • 35 slides

Chapter 14 Chemical Reactions

Chapter 14 Chemical Reactions. Forming New Substances. Chemical Reaction- a process in which one or more substances change to make one or more new substances The chemical and physical properties of the new substance differ from those of the original substances.

303 views • 30 slides

CHEMICAL REACTIONS

CHEMICAL REACTIONS. Processes in which the atoms of one or more substances are rearranged to form different chemical compounds. Chemical reactions involve the breaking of chemical bonds in the reactants and the formation of new bonds in the products. Signs of chemical reactions.

805 views • 22 slides

Chapter 9

Chapter 9. Predicting Reaction Products: Class Demonstrations. Na + Cl 2 ?. Na + Cl 2 ? NaCl. Na + Cl 2 ?. A. Na + Cl 2 ? NaCl. AgNO 3 + NaCl ?. AgNO 3 + NaCl ? AgCl + NaNO 3. Solubility Rules All sodium compounds are soluble. All nitrate compounds are soluble. C 4 H 10 + O 2 ?.

369 views • 19 slides

Chemical Reactions

Chemical Reactions. Chemical Reaction. the process by which one or more substances are changed into one or more different substances. REACTANTS the starting substances in a chemical reaction (the stuff on the left). PRODUCTS the final substances in a chemical reaction (the stuff on the right).

261 views • 18 slides

Signs of Chemical Reactions

Signs of Chemical Reactions. There are five main signs that indicate a chemical reaction has taken place:. release. input. change in color. change in odor. production of new gases or vapor. input or release of energy. difficult to reverse. Subscripts vs. Coefficients.

137 views • 13 slides

Balancing Equations

Balancing Equations. Chapter 6. What is balancing an equation?. Balancing an equation is changing the ratios of molecules/atoms to make the lowest possible same whole number and type of atoms on each side of the equation. Na + Cl 2 ? NaCl. 2. 2.

639 views • 12 slides

Chemical Equations

Chemical Equations. Because the same atoms are present in a reaction at the beginning ( reactants ) and at the end ( products ), the amount of matter in a system does not change. The Law of Conservation of Matter. 20%. Chemical Factory. 100%. 100%. 80%. Kotz web.

343 views • 12 slides

Chemical Reactions

Chemical Reactions. Nature of Reactions. A chemical reaction is when you create a new substance with unique physical and chemical properties. Reaction Representation. Chemists use symbols to represent what happens in a chemical reaction.

232 views • 12 slides

Changes of Matter

312 views • 11 slides

Proportional Relationships

Proportional Relationships. Stoichiometry mass relationships between substances in a chemical reaction based on the mole ratio Mole Ratio indicated by coefficients in a balanced equation. 2 Mg + O 2 ? 2 MgO. Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem.

337 views • 11 slides

Chemical equations and solutions

181 views • 10 slides

Stoichiometry

Stoichiometry. By: Madison Musick Pd. 8 May 2009. Go to the Problem. How many grams of chlorine gas (Cl 2 ) would react with 5.0 g of sodium (Na) according to the following balanced chemical equation?. Na + Cl 2 NaCl. What is the first step? Balance the equation? Begin the Problem?

100 views • 10 slides

Balancing Equations

Balancing Equations. Recall. Formula: The symbolic representation of a chemical compound. NaCl, H 2 O. Equation: The symbolic representation of a chemical reaction. We combine Ions to create formulae. We use the formulae to write the equation. Balancing.

218 views • 9 slides

Chemical Reactions Lesson 2

Chemical Reactions Lesson 2. Warm-up IANB p41. #1. #2. Oxygen. 1. 2. 10. 4. 12. 4. 2. 8. Learning to Inventory the Atoms in the Equation. Reactants ? Products (produce) Reactants are the substances that combine or change. Products are the result of the reaction. 1 of 6.

254 views • 9 slides

Chemical Reactions

Chemical Reactions. Chemical Equations. The starting substances are called reactants and the substances formed are called products . Na + Cl 2 ? NaCl. A+B ? AB. PRODUCTS. REACTANTS. Describing Chemical Reactions. Writing Equations. 2H 2 ( g ) + O 2 ( g ) ? 2H 2 O( g ).

109 views • 9 slides

CHEMICAL REACTIONS

CHEMICAL REACTIONS. how a chemical change happens also causes a change in energy energy can be absorbed or released a new substance is created Chemical Reactions. Reactants. starting materials on the left side of the arrow in a chemical equation ex. Mg + HCl MgCl 2 + H 2. Products.

155 views • 7 slides