Hana placed ine mctals in water. She also placed lour of the metals ini dilute acid: Her obscnations are incorded in the table, Metal Reaction with water aluminium No reaction. There is a very vigorous reaction. Sodium gives off bubbles of gas and the gas ignites. magnesium Bubbles of gas are given off. Reaction with dilute acid Bubbles of gas are given off. No reaction. Bubbles of gas are given off very rapidly. No reaction. Bubbles of gas are given off very slowly. No reaction. b Name another metal that has a similar reaction to sodium. Suggest why Hana did not place sodium in dilute acid. Use Hana's results to place the five metals in order of reactivity, starting with the most reactive. Write a word equation for the reaction between sodiva and water. Write a word equation for the reaction between magnesium and hydrochloric acid​

What is the mass of 4 molecules of co2

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

1. an experiment in your science class lists the materials needed for the lab. it is your job, as a lab partner, to measure out 25 ml of distilled water and 2.5 grams of magnesium. what lab measuring tools would you choose to measure each substance and how would you use each tool to get the correct amounts? be sure to describe the process you would follow step-by-step. (5 points) 2.which of the following is an si base unit for measuring mass? (2 points) ampere gram meter pound 3.which of the following is an si base unit for time? (2 points) decades hours minutes seconds 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer. 5.a pencil beside a metric ruler. the ruler is scaled from 1 centimeter to 10 centimeters, with markings for millimeters between each number. one end of the pencil is beside the 0 on the ruler, and the pencil point is beside the 5. which of the following measurements is accurate but not precise? (2 points) 5 mm 5 cm 50 mm 50 cm 6. which of the following prefixes represents the largest value? (2 points) giga hector kilo milli 7. which of the following types of graphs is best for plotting the percentages of a whole value in a data set? (2 points) bar graph circle graph histogram line graph