3/7 1. Write the formula for sodium phosphide. 1. How do you use chemical reactions in everyday life?

Chemical Reactions Chemical Reaction: a process in which one or more substances are changed into new substances.

Examples of Reactions

Reactants and Products Reactants: The substance that undergoes a change in a chemical reaction. (Input) Product: The new substance from a chemical reaction. (Output)

Mr. Hedlund’s Demo!!!

Polyatomic Ions What do you notice about these ions? What makes them different from other ions we’ve seen?

In Your Kitchen 1. Clean your cutting board and countertop. Hydrogen peroxide bubbles away any nasties left after preparing meat or fish for dinner. Add hydrogen peroxide to an opaque spray bottle — exposure to light kills its effectiveness — and spray on your surfaces. Let everything bubble for a few minutes, then scrub and rinse clean. 2. Wipe out your refrigerator and dishwasher. Because it’s non- toxic, hydrogen peroxide is great for cleaning places that store food and dishes. Just spray the appliance outside and in, let the solution sit for a few minutes, then wipe clean.appliance 3. Clean your sponges. Soak them for 10 minutes in a 50/50 mixture of hydrogen peroxide and warm water in a shallow dish. Rinse the sponges thoroughly afterward. 4. Remove baked-on crud from pots and pans. Combine hydrogen peroxide with enough baking soda to make a paste, then rub onto the dirty pan and let it sit for a while. Come back later with a scrubby sponge and some warm water, and the baked-on stains will lift right off. In Your Bathroom 5. Whiten bathtub grout. If excess moisture has left your tub grout dingy, first dry the tub thoroughly, then spray it liberally with hydrogen peroxide. Let it sit for a little while (it may bubble slightly), then come back and scrub the grout with an old toothbrush. You may have to repeat the process a few times, depending on how much mildew you have, but eventually your grout will be white again. Read more: cleaning/uses-for-hydrogen-peroxide/#ixzz42ECmnUN2http:// cleaning/uses-for-hydrogen-peroxide/#ixzz42ECmnUN2 Follow on Twitter | HouseLogic on on TwitterHouseLogic on Facebook

1. Natural Deodorant If you want to avoid the parabens and aluminum found in many deodorants and antiperspirants, try a pinch of baking soda mixed with water instead. This simple paste makes an effective and simple natural deodorant. You can also simply brush some dry baking soda under your arms.parabens 2. Insect Bites and Poison Ivy Apply a paste made of baking soda and water to insect bites to help relieve itching. You can also try rubbing the dry powder onto your skin. This is also effective for itchy rashes and poison ivy. Baking soda helps to relieve minor skin irritation and itching by neutralizing toxins and irritants on your skin's surface. 2 2

ammonium perchlorate - explosive MbM

Steps to name polyatomic ions Find the ion pairs -write the oxidation number for each ion as superscript eg -2 in oxalate C balance the ions by adding subscripts For today  4 points finish Naming ionic compounds  5 pts - naming polyatomic ions  extra credit make ion dice

3/8 1. What are the two terms of a chemical reaction you learned yesterday? 1. Do you think that chemical reactions only happen between ions of single elements? Agenda: Warm-Up Vocab Reactive Metals Help the Astronauts!

Objective  Observe and explain how polyatomic ions interact with metal elements to make chemical reactions.

Vocab  Polyatomic Ion: An ion formed by combining more than one element.  Solution: an evenly spread mixture of 2 or more elements.

Reactive Metals!  Polyatomic ions are used in solutions we’ll be looking at.  These allow us to see what happens when you add metal elements.

Help the Astronauts! 1. Read through beginning of lab together. 1. Send one person up with plate for metals. 1. Test out metals and solutions using template.

Help the Astronauts! WHEN YOU ARE DONE!  Separate used metals onto different paper towels.  Send one person up to place metals into beaker.  Rinse and clean plate in sink at station.  Complete the conclusion section.

3/9 1.What is the term for what happened in yesterday’s lab? 1.When there was a reaction in your lab, what do you think was actually happening? Agenda: Warm-Up Lab Discussion Lab Write-Up

Lab Discussion -Chemical Reaction When and why? -Single Replacement: One element is replaced with another. -How reactive is silver (Ag)?

Lab Discussion -PUT PICTURE HERE! -Include Chemical Reaction Equation

Write-Up -Complete a lab write-up by the end of the hour. -Follow directions on rubric handout. -Tomorrow, you will be evaluating your classmates’ write-ups!

3/10 1.What type of pipe would you recommend that astronauts use to transport magnesium nitrate Mg(NO 3 ) 2 ? 1.What types of comments do you think are good feedback for homework? Agenda: Warm-Up Feedback Discussion Peer Evaluation