Question 5, Listen Which of the following is an example of a qualitative observation? The leaf is 9 cm long. The temperature of the room increases by 8 °C. The veins are 3 mm wide. The weight of the book is 4.5 pounds. The plant is short.

Q: Metal Cost Copper $4.00 Zinc $2.75 Brass $2.71 Aluminum $1.49 Let's say you wanted to create a…

A: E⁰ for Al3+ / Al(s) =-1.66V as anode low reduction potential E⁰ for Zn2+ / Zn(s) =-0.76V  as…

Q: 1) Why is NaCIO left out of some laundry bleach? It is not due to price.

A: Given statement,      NaClO left out of some laundry bleach

Q: 0.0 M sucrose = _______ 4.6 - 4.3630 = 0.008_____________ g/min 0.4 M sucrose = ________ 4.2 -…

A: The data given is,

Q: A supporting electrolyte is usually added to the analyte solution to minimize solution…

A: 1. SOLUTION - The correct option is (a) minimize solution resistance According to the question -…

Q: Solve for a,b, and c

A: The amount of stomach acid neutralised is calculated as,

Q: ion Fe + 3e → Fe, how many grams of Fe will result if you apply a current seconds?

A:

Q: In the reaction of 10.00 mL of FeCl3(aq) and 12.4 g of K2C2O4(aq), you calculate that 9.58 g of…

A: Solution :      Percentage yield provides the ratio of actual yield to the theoretical yield of the…

Q: Part A MISSED THIS? Watch IWE 9.3; Read Section 9.4. You can click on the Review link to access the…

A:

Q: You need a 25% alcohol solution. On hand, you have a 450 mL of a 20% alcohol mixture. You also ha…

A:

Q: A student wanted to test if certain LED lights will light up when attached to a silver/lithium…

A:

Q: A student needs a 15% hydrochloric acid solution for a chemistry lab. How much 20% hydrochloric acid…

A: Given: Concentration of HCl in final solution required = 15 % Concentration of stock solution 1 = 20…

Q: Consider the leaching of CuO at 28°C. Using the pH of the solution taken at different periods of…

A: Given, Arrhenius constant is 80000“Since you have posted a question with multiple sub parts, we will…

Q: HBF, is typically sold as a 48 wt% solution (dissolved in H,O). The density of this solution is 1.4…

A: The given data contains, It is sold as 48% wt . Density = 1.4 g/ml. ,Molar mass = 87.81 g/mol.

Q: [1 minute = 60 seconds] A. Nature of Reactants A.1 The Affect of Metal Degradation Based on Acid…

A: So we first need to calculate the rates of each reaction.

Q: Using a new transfer pipet each time, transfer 15-20 drops of each solution into the correct test…

A: The objective of this question is to understand how to properly transfer different solutions into…

Q: Sam raked 4 bags of leaves in 16 minutes. If he continues to work at the same rate, about how long…

A: Given that ,Sam raked 4 bags of leaves in 16 minutes.We have to calculate how long it will take him…

Q: Task 1: Electrochemical cell (Galvanic Cell) – Lead nitrate/Lead and Iron(II) nitrate/lron A dark…

A: Given: Electrochemical cell Lead nitrate/Lead and Iron nitrate/ Iron

Q: A factory is discharging wastewater containing 200 mg/L BOD into a river. The river has a discharge…

A: Given that  wastewater containing 200 mg/L river has a discharge of 10 m3/s

Q: 1. Calculate the concentration (mol/L or M) of calcium ions in each water sample using the molar…

A: The balanced chemical equation for the reaction between Ca2+ and EDTA is shown below: Ca2+ +…

Q: If you have 155 mL solution of a 0.762 M FeCl, solution, how many grams of FeCl, are contained in…

A: Fill in blanks as shown on problem

Q: Pentane (C5H12) is a liquid with density of 0.929 g/mL at 25 °C. Find the true mass of pentane when…

A: The true mass of pentane is calculated by using formula -  m = m' 1-dadw1-dad where  m = true mass…

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.