Exercise 2: Skeletal Muscle Physiology: Activity 1: The Muscle Twitch and the Latent Period Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. 1. Skeletal muscles are connected to bones by You correctly answered: b. tendons. 2.
The chemical equation for the reaction is: CH3COOH + NaHCO3 → NaC2H3O2 + H2O + CO2. Procedure: * Wear safety goggles and a lab apron for this activity, you are handling a weak acid! Trial #1 . 1. Record the mass of the empty beaker. Pour about 15 mL of vinegar into the beaker. Record the mass of the beaker & vinegar. 2.
11. Using your data, identify the metal ion in your unknown solution. Flame Test Lab Activity Key Note: If chloride compounds are not available, metal nitrate compounds may be substituted. Use dilute or approximately 0.1 M solutions Unknowns: Number the beakers 1-12. Add solutions as follows: 1. Strontium Chloride 7. Calcium Chloride 2.
2. Similar chemical properties to other elements in the same column - in other words similar chemical reactions. Magnesium, for example, is placed in the alkali earths' column, with other elements whose reactions are similar: Mendeleev realized that the table in front of him lay at the very heart of chemistry.
Scoopula - A scoopula is a metal spatula-type utensil used to scoop up solids such as powders in a chemistry lab. Stirring rod - A skinny solid glass rod used in chemistry to mix chemicals and liquids. A stirring rod is typically about the length of a long straw and has rounded ends.
A + BC → B + AC. Mg (s) + 2AgNO 3(aq) → 2Ag (s) + Mg (NO 3) 2(aq) Mg (s) + 2Ag +(aq) + 2NO 3-(aq) → 2Ag (s) + Mg 2+(aq) + 2NO 3-(aq) The fact that one metal can cause another metal to become undissolved is used in many applications. Objectives. 1. Carry out single replacement reactions.
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Jun 16, 2018 · A really complete answer is unfortunately beyond the scope of this course, but we will offer a hint of it in a later chapter on atomic structure. For the moment, let’s put off trying to define matter and focus on the chemist’s view: matter is what chemical substances are composed of .