An experimental procedure says to accurately weigh approximately 1 g of substance. Which of the following measurements are consistent with these instructions? Select all that apply.    1.0456 g 1.0 g 0.9811 g   1 g 1.01 g   0.99

Q: A student determines the density of a substance to be 1400 g/L. What is the % error if the accepted…

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Q: What is the mass of a material with a density of 2.22 g/mL and a volume of 5.11 mL? 11.34 g 2.89 g…

A: given:  volume of material = 5.11 ml  density of material = 2.22 g/ml  formula used : density of a…

Q: The true mass of a piece of gold jewelry is 1.001 g. An analyst measured the same piece of gold…

A: A data set is said to be accurate if the mean of individual values are close to true value. A data…

Q: Twelve (12) samples were weighed on a balance, their combined mass is 13.62 g.  With the…

A: Given :-  total samples = 12  combined mass = 13.62 g  To be calculated :-  average mass of each…

Q: Determining Density and Using Density to Determine Volume or Mass Calculate the density of mercury…

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Q: Substance 4 19. Fill the graduated cylinder to 20 mL. 20. Find the mass of the substance 21. Put the…

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Q: 1. A beaker cannot be used for measuring the volume of a liquid because _____. a. it is too large…

A: Given that, We have the fill the given blanks with the missing words out of the given options. 1. A…

Q: Complete the following mathematical operation and answer with the correct number of significant…

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Q: Perform the following calculations, and report your answer to the correct number of significant…

A: Significant figures: are defined as the numbers of digits in a value that tells us the degree of…

Q: A piece of metal thought to be either chromium , nickel or lead was weighed and found to have a mass…

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Q: 5. The volume of an irregularly shaped solid can be determined by immersing the solid in a liquid…

A: Volume -  It is the amount of space that a substance occupies.  Density -  It can be said as a…

Q: What volume should be reported for an object that has a mass of 227.8 g and a density of 17.3 g/cm3.…

A: Given datas ;  m = 227.8 g  density (d) = 17.3 g/cm3  V = ?

Q: Use the References to access important values if needed for this question. A general chemistry…

A: Mass of metal = 311.2g Volume = 15.9 mL Calculations for density  formula is density = mass / volume…

Q: Which of the following is a best practice in weighing solid samples?   Do not return the mass…

A: To identify: The best practice in weighing solid samples.

Q: Write each question in scientific notation:   a. 4100000   4.1×1074.1×107 0.41×1060.41×106…

A: We are either given the whose number or in decimal form in each case and we have to convert them to…

Q: Some irregularly shaped pieces of marble were weighed. Its mass was found to be 45.215g. The marble…

A: Given : Mass of marble = 45.215 g

Q: 8. A student determines the density of a substance to be 1400 g/L. What is the % error if the…

A: Here we are required to find the % error in density.

Q: A student determines the density of a substance to be 1400 g/L. What is the % error if the accepted…

A: Given: Experimental value of density = 1400 g/L Accepted value of density = 0.001360 kg/mL

Q: Complete the operation and express the answer with the appropriate number of significant figures and…

A: Addition of 36.82 gm and 17 mg or 0.017 gm

Q: In the course of a conversation, you observe that three of your friends like horror movies. Horror…

A: The hypothesis can be tested as explained in the following step.

Q: Refer to this given: A block of wood which weighs 64.02 g and has the following dimensions: length…

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Q: A boy found a metal sample which weighed 374 g. The metal displaces 19.3 ML of water. Is his metal…

A: In order to find the whether the given metal is gold or not we first write down the given data:…

Q: 11. Using the graduated cylinders below find the volume of the object. Calculate the density if the…

A: Given: For question 11, the mass of the object = 78.42 g For question 12, the mass of the object =…

Q: Put answers in scientific notation. 1. (5.86x10^6)(2.98x10^5)= 2. 8.05x10^-4/ 9.14x10^6-2.98x 10^5=…

A: Scientific notation is writing the numbers in multiples of 10 with a single digit in the left side…

Q: Determine the mass of an object that has a volume of 88.6 mL and a density of 7.77 g/mL.     0.0877…

A: Volume of object = 88.6 mL Density of object = 7.77 g/mL Mass of object = To be determined

Q: A piece of rebar is weighed and then submerged in a graduated cylinder partially filled with water,…

A: The quantities which come across during the scientific studies are named as physical quantities. The…

Q: Choose the letter of the correct answer.   1) Three students weigh a standard mass of 3.00 g on…

A: 1) By accuracy we understand that how close the result is to the actual value. And, precision…

Q: Are numbers below exact or measured numbers?    Number Exact or Measured Number Exact or Measured…

A: The exact number is the number which contain two or three digits after the point . If it is 0 then…

Q: A student determines that 4 clinks weighs 15.45 g and 7 clacks weighs 14.11 g. What is the relative…

A: Solution -

Q: 18. An unknown substance has a volume of 2 cm' and a mass of 38.6 grams. What is the density of the…

A: It is the amount of a substance present in its unit volume. Mathematically, Density=massvolume

Q: Calculate the density of a solid substance that causes the water level in a graduated cylinder to…

A: mass per unit volume is known as density.

Q: The density of mercury is 13.35 g/cm3. Experimental results gave the following data: 10.45 g/cm3…

A: The question is based on the concept of analytical chemistry. we have to identify the nature of the…

Q: 9. Determine the volume of concentrated sulfuric acid (density 1.84 g/cm2) containing 98% HaSO, by…

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Q: A student is measuring the mass of 20 paper clips using an electronic balance that measures to the…

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

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Q: Given the following information determine the % difference between the two weights. Trial 1 Weigh…

A: Given that --- Trial 1: weight of boat + sample = 14.85 g  --------(i) weight of boat = 11.11 g…

Q: Put in Scientific notation  1.(5.86x10^6)(1.00x10^-8)= 2. (8.90x10^-5)(7.49x10^-4)/…

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Q: A pure silver coin weighs 8.062 grams. Determine the volume (in L) if the density of silver is 1.049…

A: Given: Mass of pure silver coin= 8.062 g The density of silver =1.049 x104 kg/m3 To find: Volume in…

Q: A quarter is found to have a mass of 5.81 grams. Using unit analysis, show what the mass of this…

A: Ounce is unit of mass and gram is also unit of mass. Given mass of quarter is 5.81 g. Here we have…

Q: by smallest markings read to the nearest water to the correct sig can accurately report These are…

A: The key aspect that should be dealt while carrying out an experiment is the precise recording of the…

Q: The sides of a certain rectangular wood block were measured 0.1294 meters, 7.41 centimeters and 9.4…

A: The volume of a given substance is defined as the amount of the space occupied by the substance that…

Q: Match each phrase with its correct term. Record your responses onto the Google Form. 53. A statement…

A: [53.]  A statement based on what you see, hear, taste, touch, and smell :  – (b.) Observation  [54.]…

Q: part 1 Which of the following is a best practice in weighing solid samples?   Use weighing paper,…

A: solid  sample  you can weigh it directly on the pan by using paper watchglass . Be sure the balance…

Q: Which A metal sphere weighing 9.48 g is added to 21.27 ml water in a graduated cylinder. The water…

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Q: n experimental procedure says to accurately weigh exactly 1 g of substance. Which of the following…

A: After the measurement of a substance, there are two parameters that are considered, accuracy of the…

Q: Perform the calculation and give your answer with the proper number of significant digits.       1.…

A: For calculation , we have to follow BODMAS rule where first solve brackets then followed by orders…

Q: balloon is the same as the air pressure outside the balloon. Suppose we next heat the air inside the…

A: When the temperature rises, the volume of the balloon increases. An increase in volume leads to a…

Q: Multiply or divide the following measurements. g 502.42 g 0.87 mL = %3D mL mol 0.934 L X 3.40 L…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.