Which of the following reactions does NOT represent an oxidation-reduction (redox) reaction? O a. AICI3 + 02 → Al(CIO3)3 O b. 2 Al + 6 HCI →3 H2 + 2 AIC13 O. 2 H20 → 2H2 + 02 O d. Mgo + 2 KCI → K20 + MgCl2

Q: A student is trying to determine some information about a metal sphere. He weighs a piece of metal…

A: Density is defined as the mass of substance upon the volume occupied by substance  Density=…

Q: A major component of gasoline is octane (C,H18). When octane is burned in air, it chemically reacts…

A:

Q: Perform the following calculation and input the answer expressed to the correct number of…

A:

Q: A chemist needs to know the mass of a sample of Na, SO, to 4 significant digits. She puts the sample…

A: The significant figures (also known as the significant digits or precision) of a number written in…

Q: How many liters are in 1 m³? As you work out the problem in dimensional analysis, what are the…

A: Volume of any substance can be expressed in the units of liters, cubic meters, cubic centimeters.

Q: A chemistry student needs 40.0 g of butanoic acid for an experiment. She has available 1.0 kg of a…

A: Mass of butanoic acid needed = 40.0 g6.37% w/w butanoic acid solutionThis means that 63.7 g of…

Q: A major component of gasoline is octane (C,H,). When octane is burned in air, it chemically reacts…

A: We will first write balanced stoichiometric equation, then using it calculate mass of oxygen…

Q: Express 53.8°C in units of Kelvin. Express your answer to two decimal places.

A: Unit conversion:  The unit of temperature degree can be converted into Kelvin by adding degree value…

Q: Add or subtract the following measurements. Be sure each answer you enter contains the correct…

A: The objective of the question is to subtract two measurements and report the answer with the correct…

Q: A chemist adds 0.85 L of a 4.72 g/dL sodium nitrate (NaNO,) solution to a flask. Calculate the mass…

A: Given :- volume of NaNO3 solution = 0.85 L  Density of solution = 4.72 g/dL  To calculate :-  Mass…

Q: If there are 28.35 grams in each ounce, and each marble weight 0.16 oz. What is the molecular weight…

A: Solution is given below.

Q: Make the indicated conversions. (a)    5 m =  km   (b)    5 mL =  dL   (c)    5 mL =  L   (d)    5…

A: 1) 5m = km 1000m = 1km  5m = 0.005 km   2) 5ml = dL 100 ml = 1dL 5ml = 0.05 dL

Q: What mass of iron in the nail reacted with the water?

A:

Q: In the lab you weigh 12.54 g of NaCl how much water do you need to dissolve the NaCl and make a…

A: Number of moles of NaCl can be calculated as:

Q: A 50.0 mL urine sample has a mass of 50.7 g. The specific gravity of the urine is

A: The objective of this question is to calculate the specific gravity of the urine sample. Specific…

Q: A chemistry student needs 80.0 mL of methyl acetate for an experiment. By consulting the CRC…

A: To calculate the mass of methyl acetate needed, we can use the…

Q: What is 2.9 as 3 significant figures?

A:

Q: A scientific theory is a tentative explanation for an observation.   Question 1 options:   True…

A: Significant numbers rule -  During addition or subtraction, the answer is rounded to least number of…

Q: 1.43 to scientific notation

A: The way that is used to express very large numbers or small numbers into simplest form or can say…

Q: A modern Lincoln Penny weighs about 2.5 grams. What type of property is this?  extensive  normal…

A: The properties which are varying with the amount of substance are known as extensive properties.…

Q: An unknown piece of metal weighs 526 g and has a volume of195 cm3. Identify the metal and justify…

A: Given mass=526g Volume=195cm3 Density=mass/volume Density =526/195=2.69g/cm3 This metal is aluminium

Q: You have a 16.0 M stock solution of Superstressin (something that little nervous dogs are known to…

A:

Q: A chemist makes 270. mL of barium chloride (BaCl,) working solution by adding distilled water to…

A: Volume of Barium Chloride = 270.0mL Volume of distilled water = 210.0mL

Q: How many liters are in 1 m3 ? How many mililiters are in 1 m3?

A: m3, L and mL are all units used to measure volume.

Q: The theoretical density of metal is 2.70g/ cm cube. The experimental density a student found in the…

A: We have to calculate the percentage error.

Q: 1( a)14,679cm are how many km?   How many milligrams are in 0.73 pounds?     How many…

A:

Q: You have a stock NaCl solution of 8 g/L.  You want to prepare 357 mL of a 5 mg/L NaCl solution.  How…

A: Given: The concentration of the stock NaCl solution = 8 g/L We have to find the volume of the stock…

Q: A chemistry student needs 5.00 g of thiophene for an experiment. She has available 1.2 kg of a 7.83%…

A:

Q: Ammonium phosphate ((NH,), PO,) is an important ingredient in many fertilizers. It can be made by…

A:

Q: A marine biologist measures the volume of a seawater sample. The volume is 1285mL . What is the…

A: Given volume is, 1285mL

Q: You put 84 mg/mL solution into a total volume of 177 mL. What is the concentration of the diluted…

A: Initial concentration= 84 mg/ml  Total volume= 177 ml

Q: You are traveling to the UK, how many US dollars are required to get £ 5.00? (£1=$1.21)  step by…

A: Concept based on the conversion factor. Here we are using the conversion factor from UK Euros to US…

Q: A typical baby aspirin contains 81 milligrams of acetylsalicylic acid. Acute aspirin poisoning may…

A: Mass of aspirin tablet = 81 mg Body weight of child = 25.0 lbs = 25.02.20=11.36 kg  Mass of aspirin…

Q: Solve following using Significant figure rules - (2502.20 x 21.00)/ 3.0

A:

Q: A hospital patient has an oral temperture of 40.5 degrees celcius and weighs 155 pounds. He is to…

A: Given, Mass of patient = 155pounds Dosage = 1.50mg of drug/kg body mass Concentration of drug = 25mg…

Q: I dont quite understand the significant figures. Need some examples

A: Rules for Determination of Significant Figures:[i] All non-zero digits are significant.For example:…

Q: 3:18 For each of the following, carry out the mathematical operation and report answers in…

A: Answer can be written in lowest significant digit present in the question.

Q: How many significant figures does 3.005 have?

A: Digits which are responsible for contributing the degree of accuracy of a value are called…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.