If 2% of the mass of a human body is calcium, how many kilograms of calcium are there in a 150-pound man? (1lb = 0.454 kg) 1.36 kg Ca O 1.36 × 102 kg Ca O 5.73 kg Ca O 5.73 × 102 kg

Q: Describe whether the following are physical or chemical properties. Explain your answer in no more…

A: To determine whether the below process is chemical or physical. Alcohol tends to disappear faster…

Q: Calculate the mass of 9.80 x 1026 atoms of silver. O 1.76 x 10 g O 1.06 x 1029 g O 5.47 x 1048 g O…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: What is the name of the element that is in group 5A and period 3? What is the name of the element…

A: A question based on periodicity properties that is to be accomplished.

Q: A pure titanium cube has an edge length of 2.69 in . How many titanium atoms does it contain?…

A: Given- Density of titanium = 4.50 g /cm3 Edge length of pure titanium cube = 2.69 in To find- number…

Q: 6. Give a clear description of how you would separate the following mixtures: a. Sugar from water b.…

A: a) We have to separate Sugar from water  : The easiest way to separate a mixture of sugar and water…

Q: If sucrose costs $1.20 per pound, and a bottle contains 2.00 kg, how much would you pay for a case…

A: we know that, kg and pound are related ro each other as;2.205 pounds=1 kilogram1 pound=12.205*1…

Q: Calculate the density for Zinc Using the atomic mass of Zinc and dimensions of 3.5mmx 2.5mm x 2.5mm

A: Given  Dimension =  3.5 mm × 2.5 mm × 2.5 mm Density = ?

Q: 2. A dietician has learned from a nutritional book that his family needs at least 300 grams of…

A: Solution -

Q: How many Cu atoms are present in a 75.0 cm length of 20 gauge copper wire? A 20 gauge copper wire…

A: Given that Length of wire= 75 cm  Diameter = 0.03196 in  Since 1 inch = 2.54 cm  So  Radius =…

Q: What is the mass of 1 atom of krypton? Group of answer choices 1x10-22 g 5x1025 g 2x10-26 g…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: We have 40.5 cm of a material. How many g is it? The material has density of 9.50 g/cm O 68.0 g O…

A: • The values provided in the question are:-  i) Density of a material, d = 9.50 g/cm3  ii) Volume…

Q: what is the weight in grams of 4.30 x 10^14 CF4 molecules?

A:

Q: What is 1.0 mg/cm2 in kg/m2

A: Please find your solution below : Unit conversion is a multi-step process that involves the…

Q: Which of the following is part O glass collection tubes a power source thormo meter

A: Hofmann apparatus used for  electrolysing  water and  it is invented  by August  Wilhelm Von…

Q: What is the name of the element that is in group 3A and period 6? What is the name of the element…

A:

Q: Solve this

A: The element contains one type of atoms only. The compound has two or more elements. The chemical and…

Q: For each of the following elements, write its chemical symbol, locate it in the periodic table, and…

A: (a) Silver  Symbol = Ag Position = 5th period, 11th group It is a metal (b) Helium Symbol = He…

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 33.733.7 g of oxygen. Calculate the mass of the…

A: The molar mass of oxygen is 15.999 g/mol, so 33.7337g of oxygen converts to 2.10 moles of oxygen.…

Q: Define physical and chemical properties, provide three examples of each, discuss their…

A: Physical properties are those properties which doesn't depend on reaction with any other substance…

Q: Determine the mass (g) of a sample titanium that has a density of 4.5 x 103 kg/m3 and a volume of…

A: Since density is given by  density = mass / volume  volume given = 38.8 x 1010 cm3  Since 1 m = 100…

Q: The density of acetic anhydride is 1.08 g/mL. Calculate the mass (in g acetic anhydride present in…

A:

Q: Bromine (Br) and mercury (Hg) are the only two elements that occur as liquids at room temperature…

A:

Q: 8. Given what you know about the law of conservation of mass, fill in the missing mass below. D0.…

A: law of conservation mass said that mass is conserved during a reaction or any physical changes…

Q: what weight in kilogram of sodium can you get from 3.57x10^24 ions of na2so4

A: In Na2SO4 , for every ion it there are two ions of the Na, implies for every mole of Na2SO4 there…

Q: A 1980 penny has a mass of 3.025 g and is 85.0% copper. What is the mass of copper in the coin? A)…

A:

Q: Which of the following materials would make a better shield from radiation? i)  Iron (density =…

A: To find: The material which make a better shield from radiation

Q: A compound is found to be 30.45% N and 69.55 % O by mass. If 3.01 g of this compound occupy 780 mL…

A: Empirical Formula :- When we write the chemical formula of a compound with the simplest ratio or…

Q: Liquid A has 10 grams of element X per liter. Liquid B has 15 milligrams of element Y per cm3 (there…

A:

Q: The element silicon has a melting point of 1,410°C and a boiling point of 2,355°C. It is a weak…

A: Since in the question it is given that it reacts with O2 i.e oxygen in air and form SiO2 i.e silicon…

Q: A sample of H²SO⁴ contains 2.02 g of hydrogen, 32.07 g of sulfur, and 64.00 g of oxygen. How many…

A: Sulfuric acid is also known as oil of vitrol is a mineral acid composed of the elements oxygen,…

Q: chemical properties?

A:

Q: 2. You can identify a metal by carefully determining its density. A 2.166 g piece of an unknown…

A: Density of a substance is defined as its mass per unit volume.  Mathematically,  Density(d) =…

Q: 3) Na is present in seawater as 1.25 g Na/kg seawater. What volume of seawater as in liters(L),…

A:

Q: The mass of an unidentified rock is 15.5 grams. Students determine the volume of the rock by placing…

A: Tables -   Rock                 Density Range (g/cm3)  Coal.                    1.1 - 1.4…

Q: The volume of a sample of lead (density 11.3 g/cm) was determined to be 13.4 cm3. Calculate the mass…

A: Mass of the sample = volume x density                                 = 13.4 cm3 x 11.3 g/cm3…

Q: You are given 3 unknown cylinders eac with masses of exactly 25.00 g. Your choices of metal have the…

A: To solve this we will use  Density = mass / volume  We  will calculate the volume using this formula…

Q: Which of the following would be heterogeneous?      A mixture of sand and water.      A mixture…

A: A heterogeneous mixture is a mixture with non-uniform composition or we can say it contains two…

Q: We have 12.5 cm of a material. How many g is it? The material has density of 3.50 g/cm O 68.0 g O…

A: Given: Density of material = 3.50 g/cm3. And the volume of material = 12.5 cm3.

Q: Q26 (B) 500 grams of Zn(XO3)2 contain  7.22 x 1023  molecules. Find name and symbol of X.m

A:

Q: If 81.17 grams of aluminum and 72.03 grams of the iron oxide are used, what mass of iron was…

A: Mass of Iron produced depends on limiting reagent.

Q: Convert 312 mg to kilograms. Oa) 3.12 x 10 4 kg O b) 3.12 kg O c) 0.312 kg O d) 3.12 x 105 kg O e)…

A: . 1mg = 10-3 gram . 1gram = 10-3 kg Therefore, 1mg = 10-6Kg

Q: large piece of jewelry has a mass of 132.6 g. A graduated cylinder initially contains 48.6 mL water.…

A: Density ρ is defined as the ratio of mass of the substance to its volume. The cylinder contains a…

Q: 1. a) Calculate the mass percent of NaHCO3 based on the manufacturer's list of ingredients: 325 mg…

A: mass % of NaHCO3 = mass of NaHCO3 in tabletsum of mass of all ingredients x 100 sum of mass of all…

Q: Calculate the mass, in grams, of each of the following. 2.0x10^23 lead atoms Express your answer…

A:

Q: 1. A typical multivitamin tablet can contain 2.00 mg of vitamin B2 (riboflavin), and the RDA is…

A: The solution is given below -

Q: Calculate the mass, in grams, of each of the following.   1.6×1023 gold atoms Express your answer…

A: Number of atoms of different elements are given and from that given data, we have to find the mass…

Q: K   = 0.2246 meq/100g, Mg = 5.3 meq/100g, Ca = 10.4538 meq/100g weight of 1 Ha = 7.761 x 10^6 Kg how…

A:

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.