Three metal objects have the following masses: 7.119 mg 2.12 g 245.2 g How should you report the total mass of metal? 247.327119 g 247.33 g 254.439 g 247.3 g

Q: How many centiliters of sulfuric acid are in 32.9 x 10-23 molecules of acid? The density of…

A: Here we have asked that how many centilitres of sulfuric acid are present in 32.9 × 10-23 molecules…

Q: An aluminum atom has a mass of 4.48×10^-23 g and a small airplane has a mass of 5000. kg. Use this…

A: The objective of the question is to find out the mass of 1 mole of aluminum atoms and the number of…

Q: A homogeneous mixture was prepared by mixing 0.90 g A, 105.7 g B and 48.17 g C. The volume is found…

A: Given, Volume of mixture = 56.6 cm3 Mass of A = 0.90 g Mass of B = 105 .7 g Mass of C = 48.17 g

Q: You add 297 grams of NaCl to a container and then you add 898 grams of water to that same container.…

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Q: When a 12.259-g sample of a compound containing only copper and oxygen was decomposed it produced…

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Q: Aluminum has a density of 2.70 g/cm3. What is the mass of an aluminum cube with a length of 3.61 cm?…

A: Length, a = 3.61 cm Volume of cube is obtained from length – Volume = a3=3.61 cm3=47.046 cm3

Q: What are 2 cups of chocolate chips converted into nanograms? 1 cup of chocolate chips = 170 g 1…

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Q: While using an electronic balance the mass of calcium chloride and a watch glass to be 34.920 g…

A: Given  Mass of CaCl2 + watch glass = 34.920 gram  Mass of empty watch glass = 32.17 gram  mass of…

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

A: Given : 604.36 mol ÷72.3 L = 8.359059474 mol/ L 0.93 cm x 4.725   = 4.39425 cm2 20.9476 mol/ L x 70…

Q: A piece of metal weighs 8.25 g. When a student places it into a graduated cylinder containing water,…

A: we have to calculate the density of metal

Q: Calculate the number of hydrogen atoms in a 70.0 g sample of ammonia (NH3). Be sure your answer has…

A: Given: Mass of NH3 is 70.0 g Molar mass of NH3  is 17 g/mol Atoms in 1 mole is 6.022×1023  To find:…

Q: What is the answer, with the correct number of significant figures, for this problem? 423.15 g +…

A: Question detail

Q: The nickel is comprised of two metals, nickel and copper. Surprisingly, the coin is only 25% nickel.…

A: The coin is comprised of nickel and copper. The mass percentage of nickel in the coin is = 25% The…

Q: The density of an object is 0.072 g/mL. Calculate the mass of this object (g) if it displaces 150.0…

A: Given: The density of an object = 0.072 g/mL The volume of water displaced by the object = 150.0 mL…

Q: How much does it weigh in grams

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Q: 4. The volume of a piece of metal is 40.0 ml. Its density is 4.00 g/ml. What is its mass? a) 160 g…

A: Given density of metal = 4 g/ml  Volume = 40 ml

Q: A single capsule of a common antibiotic medication contains 250 mg of the active ingredient. What is…

A: Given: Mass of active ingredient in capsule = 250 mgRequired: Mass of active ingredient in capsule =…

Q: The average density of blood is 1.060 kg/L. The average human body contains 5.00 L of blood. What is…

A: average density of blood = 1.060 kg/Laverage volume of blood = 5.00 Laverage mass of blood = ?

Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: How many grams of gold (Au)are there in 88.93 moles of Au? Be sure your answer has the correct…

A: When the moles of the substance are given, it has to be calculated by knowing the molar mass of that…

Q: Gaseous butane (CH3(CH2)2CH3) will react with gaseous oxygen O2 to produce gaseous carbon dioxide…

A: As given in the question that butane reacts with gaseous oxygen to produced carbon dioxide and…

Q: flask of mercury has a mass of 76.0 pounds (lbs). What is the mass of the flask in grams?  3.45 x…

A: The mass of flask of mercury  = 76pounds  1 Pounds = 453.92grams

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km, Suppose a…

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Q: The source of bitterness in dark chocolate is the compound theobromine, an alkaloid present in cocoa…

A: The number of molecules of theobromine present in the sample = 6.58 × 10206.58 × 1020 molecules…

Q: 91.23 g to mg

A: Given: Value in g = 91.23 g.

Q: You can identify a metal using its density. If you have a metal brick that you measured to be 4…

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

A: 1. Answer :---- Given:Concentration = 2.094 mol/LVolume = 2.80 LMultiplying the concentration and…

Q: Perform each of the following calculations.  You must show your work to receive credit and must must…

A: The number of moles of a substance it the given mass of the substance upon its molar mass. The…

Q: In one experiment you reacted 45.7g of aluminum with 182.8g of iron (iii) oxide to produce aluminum…

A: The chemical equation can be written as: The chemical equation needs to be balanced so that it…

Q: If Mass of 10 bolts = 64.567 g Mass of 10 nuts = 20.321 g1. What is the mass of 225 bolts?2. What is…

A: Given,Mass of 10 bolts = 64.567 gMass of 10 nuts = 20.321 g

Q: A cube measures 3.1 cm on each edge and has a mass of 69.4 g. Calculate the density of the material…

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Q: When a mixture of aluminum powder and iron(III) oxide is ignited, it produces molten iron and…

A: According to law of conservation of mass, mass can neither be created nor be destroyed in any…

Q: How many atoms are there in each of the following substances? 1.88 g Bi Express your answer using…

A: Calculate number of atoms in each element given--

Q: Use the algebraic equation to determine the mass if the volume was 622 mL.  mass (g) = (3.60…

A: Given, mass (g) = (3.60 g/mL)(volume (mL)) + 11.4 g y= mass (g) m = 3.60 g/mL x= 622 mL b = 11.4 g

Q: Liquid octane (CH₂(CH₂) CH₂) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide…

A: Hexane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: I don't know where to start. I found the average.

A:

Q: A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the…

A: Percent by mass alcohol = 13.5 % Volume of wine = 24 oz 1 oz = 29.57 mL 24 oz = 709.76 mL or 0.70976…

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

A: Rules for determining the correct number of significant figures in answers: Rule 1. The…

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.