What is the mass of 1 atom of krypton? a-3x10-22 g b-9x10-22 g c-2x10-26 g d-5x1025 g e-1x10-22 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: AS > 0 I2(g) + C½(g)–→2ICI(g) →2NO(g) + Br2(g) 2NOBr(g)- CH4(g) + 202(g) AS < 0 CO2(g) + 2H,0(g)…

A: Given reaction with their phase. ∆S means change in entropy. ∆S = is disorder ness of the system.…

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: 2(8), 2(8) N,O;(g) → 2 NO,(g) + ¿ O2(g) ¿0g]/10-² M [NO,]/10-2 M [0,]/10-² M 1.24 0.92 0.64 0.16…

A: Calculate the concentration at 70 min....

Q: sample

A:

Q: A laboratory instructor gives a sample of amino-acid powder to each of four students, I, II, III,…

A: Iavg=8.72g+8.74g+8.70g3=8.72gIIavg=8.56g+8.77g+8.83g3=8.72gIIIavg=8.50g+8.48g+8.51g3=8.50gIVavg=8.41…

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: e mass of 1

A:

Q: In a lab experiment, 8.21 g of phosphorus reacts with bromine to form 71.75 g of phosphorus…

A: According to the law of conservation of mass, the sum of mass of reactants and the sum of mass of…

Q: The density of copper is 8.94 g/cm°. What is the volume of copper in a 420 g sample? O 378 cm3 O 65…

A: Density of a substance is the ratio of mass to volume. The density is usually indicated by the…

Q: 1. What is the sum of 89.332 g and 1.1 g? a. 90.4g b. 90.432g C. 90.0g d. 90.43g

A: The significant figures of a given number are those significant digits, which express the meaning…

Q: What is the mass of 1 atom of krypton? Group of answer choices A. 3x10-22 g B. 2x10-26 g C.…

A: Any component's amount usually depicted through a particular unit addressed as "Mole". The moles and…

Q: What is the mass in grams of 1.58x10^24 atoms of beryllium?  grams How many beryllium atoms are…

A: Given data- a) The number of Be atoms= 1.58x1024 To find - the mass of Be in grams b) The mass of Be…

Q: Someone invents new units of measurement: grobs, hulks, and blubs. They define that 1 hulk is equal…

A: Given new units of measurement 1 hulk = 10-3 grob 7 bulbs = 377 hulks We can relate bulbs with grob…

Q: A sample of calcium chloride, CaCl2, has a mass of 27.8 g. What mass of chlorine is present in the…

A:

Q: What is the mass of phosphorus in a 45 kg person? .017 mass of P Incorrect

A: Determine mass of phosphorus in 45 Kg person?

Q: 1 mg is the same as O 1/10 cg O 100 cg 1/1000 kg 10 g

A: The symbol, mg is used to express the mass of substance.

Q: On average, people use one teaspoon (2.5 g) of instant tea to make a 8-oz glass of ice tea. The…

A: 1 oz of iced tea contains 10 mg of caffeine.Therefore, 8 oz of iced tea contains 80 mg (0.08 g) of…

Q: CH2) + O3(g) → CO2«@) + 2H2O(g) ДН (КУmol) -249.2 Substance Substance AHf (kJ/mol) H2O1) Ocg) Oxg)…

A: Here we have to determine ∆H°rxn of the given reaction from standard enthalpy of formations data.…

Q: In a catalog you can buy sulfuric acid with 99.999% purity at a cost of 2,263.00 pesos for a 100 mL…

A: The question given, volume of sulfuric acid (V)= 100 ml, Density of this acid (d) = 1.84 g/ml And…

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: 9.31 g is the same mass as O 93.1 cg O 9310 mg O 931 kg 0.0931 dg O 931 mg

A: 1 cg = 10-2 g93.1 cg = 93.1 ×10-2 g93.1 cg = 0.931 g   1 mg = 10-3 g9310 mg = 9310× 10-3 g9310 mg =…

Q: Calculate the mass in grams of carbon in a 1 carat diamond that contains 1.32x1022 atoms of carbon.

A: Given the number of C atoms present in the 1 carat diamond = 1.32*1022 atoms We have to convert the…

Q: For each reaction, predict the sign and find the value of ΔS°:

A: It’s given below :

Q: An alloy of silver and gold weighs 15 oz. in air and 14 oz. in water. Assuming that silver losses…

A:

Q: Gallium has a density of 5.9 g/mL. How much mass do 54.2 mL of Gallium have? 319.78 g 319.8 g 320 g…

A: •Given :-density of gallium=5.9 gm/ml                Volume=54.2 ml   • As we know density formula…

Q: Calculate the mass in grams of 1 mole of footballs if one football has a mass of 0.43 kg.

A:

Q: What is the mass of 1 carbon atom in grams? what is the mass of one dozen carbon atoms in grams and…

A: Carbon is an important element in periodic table. Its atomic number is 6. It has 4 e-s in outermost…

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: What is the mass, in grams, of 5.23 moles of oxygen gas?

A: Number of moles of the substance is the ratio of mass to molar mass.

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: A 3.53-gg sample of aluminum completely reacts with oxygen to form 6.67 gg of aluminum oxide. Use…

A: Mass of aluminum in the sample is 3.53 g. Mass of aluminum oxide is 6.67 g.

Q: An instrument used to detect metals in drinking water can detect as little as 1 ug of mercury in 1 L…

A: The number of mercury atoms that is consumed by drinking 1 L of water that contained 1 µg of mercury…

Q: What is the mass of 1.89x10^23  atoms of chlorine?

A: Mass of 1 mol Cl = 35.453 g  Mass of 1 mol Cl2 = 70.906 g  1 mol contains = 6.022 × 1023…

Q: 1. A sample of acetic acid has 5.82x10^25 molecules. How many grams of oxygen are present?

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 5. Calculate the mass % (w/w) Mg(OH)2 in your Milk of Magnesia sample. (2.25) mass of Mg(OH)2 mass %…

A:

Q: A piece of alminum foil contains 3.6 x 1021 aluminum atoms.  1) What is the mass of the aluminum…

A:

Q: what is the mass of 2i10xlo (19 unat is the mass of 2.10 x10 of copper, cu? atoms. Oilol 0.2229…

A: Given data contains, The number of copper atoms is 2.10×1021 atoms.

Q: 4HClg) + O2(g) = 2C12(g) + 2H20(g)

A:

Q: Part 1 N,0(g) + NO,(g) 3NO(g) 2. Choose one: (3 [NO (g)]) 3 K = %3D [N2O (g)] [NO2 (g)] NO (g)] [N2O…

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Q: metal g/cm3 aluminum 2.70 zinc 7.13 iron 7.87 copper 8.96 Using the table above determine the…

A:

Q: 7. Ca(s) / Ca+2(aq) // Cr+3(aq) / Cr(s) 8. Mg(s) / Mg+2(aq) // Fe*2(aq) / Fe(s)

A:

Q: Perform the following mathematical function. 51.11 + (0.97/2.414 × 0.32150 × e.-3.25) + 1.52444 3.4…

A:

Q: Percent by mass of hydrogen in ammonia, NH3, is 17.77 %.  Which of the following is the grams of…

A: Gram of hydrogen = percentage of hydrogen × mass of ammonia.

Q: You have a sample of 3.01 x 10^23 atoms of silver. How much does this sample weigh? A. 0.0500 g B.…

A: No of atoms of Silver = 3.01 × 10e23 Weigh of sample = ?

Q: 2.66 + 4.38 ×10* -1.0835×10 K K JK T -1.2517×10¬ K -2.85 + 6.543×10² K?

A: Now, ∆S298 =2S298oHcl-S298oCl2-S298oH2 ∆S298 =2×186.9-223.1-130.7∆S298 =20Jkmol

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.