Dy+&+Thai+Son

__**Aim**__: to know how the 5 kind of metal (zinc, aluminium, steel, and magnesium, copper) reacts to 1 maul acid hydro chloride **__Variable__** :
 * LAB: Some Metals Are More Reactive Than Others **

|| Use the scientific scale and measure the weight ||
 *  || What is the Variable? || How? (//Will you manipulate? Control it?)// ||
 * Independent Variable || Type of metal (zinc, aluminium, steel, and magnesium, copper)  || Use the same size and weight of metal ||
 * Dependent Variable || The weight of the left over
 * Controls/ Constants || Weight of the metal || Need to have the same weight of metal ||
 * ^  || <span style="font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Arial; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Arial; msofareastlanguage: KO; msohansithemefont: minor-latin;">Amount of acid || <span style="font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Arial; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin;">Use scientific scale <span style="font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Arial; mso-hansi-theme-font: minor-latin;"> <span style="font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Arial; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin;">to measure the amount of acid  ||

<span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastfontfamily: 'Malgun Gothic'; msofareastlanguage: KO; msohansithemefont: minor-latin;">

<span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msohansithemefont: minor-latin; text-decoration: none;"> <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">If reactive metals like Magessium is dropped into the acid Then the metal will react with the acid Because Magnessium is a reactive element, it sits in the middle of the periodic table unlike the noble elements on the sides.
 * __<span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msohansithemefont: minor-latin;">Hypothesis: __**

__**Equipment and materials:**__

<span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 'Malgun Gothic'; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastfontfamily: 'Malgun Gothic'; msofareastlanguage: KO; msohansithemefont: minor-latin;">Zinc Aluminium Steel Magnesium Copper Hydrochloric acid (100ml) 5~9 beakers <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Electronic scale Timer

__**Method**__

<span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 1. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">First gather the material required <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 2. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Pour 10ml of hydrochloride acid to a small beaker <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 3. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Measure the weight of the small beaker with the hydrochloride acid <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 4. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">choose one type of metal ( chunk or powder) <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 5. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Before adding the metal the measure the weight of the metal <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 6. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Add the metal to the hydrochloride acid <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 7. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Wait for 2 minutes <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 8. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Measure the weight of the beaker <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 9. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Minus the weight before the reaction to after reaction (before reaction - after reation) <span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-language: KO; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msobidifontfamily: Calibri; msobidithemefont: minor-latin; msofareastfontfamily: Calibri; msofareastlanguage: KO; msofareastthemefont: minor-latin; msohansithemefont: minor-latin; msolist: Ignore;"> 10. <span style="font-family: Calibri; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin;">Do for other metal

__ Diagram of Apparatus: __ <span style="font-family: 'Calibri','sans-serif'; font-size: 18pt; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: Gulim; mso-hansi-theme-font: minor-latin;"> __ Observations: __ - Some still floating on top. - No Heat - Kept all properties || - No Heat - Kept all properties || - Some Heat - Bubbling - Some Floating - Steam || - Lots of Heat - Streams of bubbles - Lots of Steam - Sticks to each other after reaction || - Some Floating on top - Kept all properties || __ Conclusion: __ When we tested the five metals, only some reacted, others didn’t so metals do not react very well with HCl. Our hypothesis do support our results since only elements in the center of the periodic table react to the acid. Metals sitting towards the sides of the periodic table is more likely to react to other substance since it is not in an octet. So when we dropped elements like magnesium in we get a lot of reaction. We know it is a reaction because a reaction will either produce heat and light. Magnesium when burned, processes light. When dropped in acid, produces heat.
 * __ How different metals react to Hydrochloric Acid (HCl) __**
 * Metal || Weight (HCl) || Weight (Metal) || Total (Before) || Total (After) || Observations ||
 * Fe(Iron) || 29.54g || 0.5g || 30.04g || 30.04g || - Didn’t dissolve.
 * Al (Aluminum) || 28.62g || 0.5g || 29.12g || 29.12g || - Didn’t dissolve.
 * Zn (Zinc) || 2.12g || 0.5g || 28.62g || 25.65 || - Dissolved Quickly
 * Mg (Magnesium) || 26.38g || 0.5g || 26.88g || 26.83g || - Dissolved rapidly and intensely
 * Cu (Copper) || 28.40g || 0.5g || 28.90g || 28.90g || - Didn’t dissolve

Ranking of the Most reactive Metals: 1. Magnesium (Mg) 2. Zinc (Zn) 3. Aluminium 4. Copper 5. Iron

<span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin;">Evaluation

Data of this experiment is very reliable. There are 3 reasons to it. The first reason is because this experiment has a good method. It has a good method because it contains all the information and step required to precede the experiment well. Also in this experiment the dependent variable is measured by a scientific scale. Therefore it can measure to two decimal points. The last reason is because the entire controlled variable is controlled by an exact way such as using test tube to measure the weight and others.

The Method could create reliable data but isn’t valid. The reason this could be said is because the method missed some step such as with what to measure and lots of others. Also this method didn’t even said to make an observation. As a conclusion this method is not valid

<span style="font-family: 'Calibri','sans-serif'; font-size: 11pt; mso-ascii-theme-font: minor-latin; mso-fareast-language: KO; mso-hansi-theme-font: minor-latin;">
 * <span style="display: block; font-family: 'Calibri','sans-serif'; font-size: 11pt; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin; text-align: center;">weakness || <span style="display: block; font-family: 'Calibri','sans-serif'; font-size: 11pt; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin; text-align: center;">How to improve ||
 * <span style="display: block; font-family: 'Calibri','sans-serif'; font-size: 11pt; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin; text-align: center;">The timing of measuring the weight. When I should measure the weight at exactly 2 minutes I missed the timing || <span style="display: block; font-family: 'Calibri','sans-serif'; font-size: 11pt; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin; text-align: center;">To fix such a problem would be easy if this test is done more than one time. ||
 * <span style="display: block; font-family: 'Calibri','sans-serif'; font-size: 11pt; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin; text-align: center;">The spoid. The spoid I used for HCl was not a clean one. The spoid I used was one that had water on it. || <span style="display: block; font-family: 'Calibri','sans-serif'; font-size: 11pt; msoasciithemefont: minor-latin; msofareastlanguage: KO; msohansithemefont: minor-latin; text-align: center;">Use a clean spoid nextime ||