The density of a substance is 0.913 g/mL. What mass (in grams) of that substance does 200. cubic centimeters (cm or cc) occupy? a. 91.3 b. 183 с. 200. d. 219

Q: 50. A 56-g sample of iron reacts with 24 g of oxygen to form how many grams of iron oxide?

A: Interpretation - A 56 g sample of iron reacts with 24 g of oxygen to form iron oxide. The grams of…

Q: A 0.181 g piece of solid aluminum reacts with gaseous oxygen from the atmosphere to form solid…

A: The reaction of aluminum with gaseous oxygen can be expressed as,                        4 Al + 3 O2…

Q: - A piece of zinc (Zn) is immersed in aqueous hydrochloric acid solution. According to this which of…

A: Given: Metal Zn is immersed in aqueous hydrochloric acid i.e. HCl solution.

Q: A. MELTING ICE B. BURNING MATCH C. SAND AND SALT MIXING E. WATER FROM F. STEAM D. MILK GOING SOUR…

A:

Q: Samples of hydrated manganese perchlorate are heated to determine the amount of crystal water:…

A: Given:Mass of hydrate before heating (Mn(ClO4)2.nH2O) = 2.126 gMass of hydrate after heating…

Q: What is the difference between a physical change and a chemical change? List some examples of each.

A: Physical and chemical changes are observed in chemical reaction which gives the characteristics of a…

Q: Suppose you have Avogadro\'s number of mini marshmallows and use them to cover the state of Nebraska…

A: It is required to calculate, to what height above the surface, in km, will the mini marshmallow…

Q: A baby's spoon with a surface area of 6.25 cm² is plated with silver from AgNO3 using a current 2 A…

A: Given : Surface are of spoon = 6.25 cm2  Current = 2 A And time = 2 hr 25 min = 145 mins…

Q: Earth’s oceans have an average depth of 3800 m, a total surface area of 3.63x108 km2, and an average…

A: a.

Q: Part B ? 65.7 °F = °C Part C ΑΣφ ? -26.0 °C = Κ

A: The necessary conversion required to solve the given problem are,                 C = (F − 32) × 59…

Q: A beaker has a mass of 225.08g . When a liquid is added to the beaker, the combined mass is…

A:

Q: Hot-air balloons float because the air caught inside the balloon is heated up by a burner, making it…

A: The density of a compound is determined by the ratio between mass of the compound to its volume. It…

Q: Diamond is a form of elemental carbon. Diamonds are weighed by carats, where 1 carat = 200 mg.…

A: Given data: Mass of 1 carat diamond = 200 mg Radius of 2.5 carat diamond = 3.24 mm

Q: 19. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide…

A: Using combustion reaction of wood it is observed that it is similar to decomposition of limestone.

Q: In one box of nails, there are 75 iron nails weighing 0.250 lb. The density of iron is 7.86 g/cm3.…

A: Given that mass of 75 nails of iron = 0.250lb = 113.4g Density of iron = 7.86g/cm3 (a) volume of…

Q: A Canadian, driving in the U.S.A., fuels their car at a cost of L The current monetary exchange rate…

A:

Q: a. Describe the arrangement and movement of particles in each of the three states of matter. Use…

A: Given :  a. Describe the arrangement and movement of particles in each of the three states of…

Q: 1. In a change, one kind of matter is turned into another. 2. A chemical reaction is accompanied by…

A: "Since there are multiple sub-parts in this question so I am solving only the first three sub-parts.…

Q: A solution is made by dissolving 8 grams of a salt in 100 cm³ of water (density = 1 g/cm³). Assuming…

A: Given: Mass of salt = 8 gm Volume of water = 100 cm3 Density of water =  1 g/cm3 We know that,…

Q: A 9.55g sample of a solid was placed in a 15.00-ml flask. The remaining volume was filled with…

A: Density of a substance is defined as mass per unit volume.It is given by the formula

Q: 8. You work for a company called Farquahr and Daughters. Your expense account allows you to spend…

A: Given, Allowance for spend = 80.00 $/day Total days of trip = 1 week = 7 days Currency exchange rate…

Q: 14K yellow gold is an alloy that contains gold, copper and silver. A 14K gold ring contains 6.90g of…

A:

Q: Some iron wire weighing 5.6g is placed in a beaker and covered with 15.0g of dilute hydrochloric…

A: It is given that;Mass of iron wire in the beaker = 5.6 gMass of dilute hydrochloric acid in the…

Q: 6. Calculate The scientist repeats the experiment, burning a new sample of steel wool until it is…

A:

Q: 2. How much heat is lost when a 640 g piece of copper cools from 375 °C, to 26

A: When a solid substance is cooling then heat is lost . It can be determined by the following formula-…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: For calculating the density of the unknown metal sample, we need its mass and volume.

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: A pycnometer is an apparatus that can be used to determine the density of an insoluble solid by…

Q: An unopened can of soda pop explodes if left in the hot sun. Which two properties change while it is…

A: To determine which two variables change , we would use gas law .

Q: Question attached

A: The given data contains, Density of water =1.000g/cm3 Mass of clean pycnometer =25.151 g Mass of…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: In order to find the density of the unknown metal alloy sample, we have to find the mass of the…

Q: What is another common situation in which a chemical change also leads to a physical change?

A:

Q: What information is important to those who will be analyzing the samples?

A: Various types of analysis of compounds are performed in chemistry. These analysis helps in finding…

Q: A pycnometer is a glass flask with a tight fitting glass stopper that can be used to determine the…

A: The ratio of mass to the volume is known as density.

Q: A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body mass…

A: Given, A patient is treated with hydroxychloroquine for malaria. The drug is given based on the body…

Q: (a) 2C(s) + O2(s) → 2C0(g) (b) 2NAHSO3(s) Naz503(s) + 502(s) + H2O(g) (c) 2C(s) + 2H20g) CO23) +…

A: Equilibrium constant kc is the ratio of equilibrium concentration of products over the equilibrium…

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: An instrument used to determine the weight of samples used in analysis is called a weigh balance.…

Q: A 10.0 mL sample of oil is transferred into a beaker with a mass of 43.559 g. The mass of

A: given  beaker mass =43.559 gr  sample of oil volume =10 ml beaker mass with oil=56.890 gr mass of…

Q: 4. When 10.0g of ice melts into water, how many grams of water are produced? S Scanned with…

A: Mass of a substance always remains constant during phase transfer.

Q: 19. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide…

A: The heating of limestone is a chemical change;The limestone decomposes into two other substances,…

Q: steel is an alloy of iron, carbon, and other metals, typically steel contains 2.14% carbon by mass.…

A: We have to calculate the total mass of steel sample.

Q: 12. Which picture shows an example of a chemical change taking place? LORV A B C

A: To determine which of the below picture shows chemical change.

Q: Is the calculation step the last step in solving a chemistry problem? Why or why not?

A: The solution is given below -

Q: Prior to 1983, pennies were made almost entirely of copper. If the scrap value of copper is $3.89…

A: Given: Mass of each penny = 2.95 g = 0.00650364 lb Scrap value of copper per pound = $3.89 Number of…

Q: which gasoline is less is less expensive: gas that cost $2.41 per gallon, or gas that sells $0.78…

A:

Q: 5. In an experiment, you would want to separate the mongo beans from water? What process of…

A: Since you are posted with multiple questions. As per the rule, I am answering first question only.…

Q: A student heated a hydrated salt sample with an initial mass of 5.322 g. The sample was heated to…

A: Given : Initial mass of hydrated salt = 5.322 g And mass of salt after reheating = 2.798 g

Q: he computed percent recovery was more than 100%. What does this signify, and what should be done…

A: The computed percentage yield to be over 100% indicates that there is more recovery of the sample…

Q: A solid is weighed on the balance using the following steps: 1. The balance is tared. 2.…

A: The information given in the above problem are,                Mass of the weighing paper = 0.806 g…