For the image attached Draw a graph of the average mass vs. year. Make sure axes are labeled.

Q: By definition, all atoms of carbon have exactly 6 _________, but the number of _________ varies from…

A: Carbon is an element in periodic table. It has the atomic number of 6. Carbon is a nonmetal with…

Q: Symbols or atoms of what element(s) are missing from the line drawings?

A: Organic molecules:

Q: The remnants of an ancient fire in a cave in Africa showed a '3C decay rate of 3.9 counts per minute…

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Q: When completely filled with water, the beaker and its contents have a total mass of 326.55 g. What…

A: Mass, density and volume of a substance is inter-related by the following formula Mass = Density ×…

Q: . A hydrogen ion (H+) has neutron(s), proton(s), andelectron(s).a. 1; 0; 2 b. 0; 1; 0 c. 0; 0; 1 d.…

A: Neutron, proton, and electron are fundamental subatomic particles.  The number of protons is equal…

Q: 4. Show by suitable net ionic equations that each of the following species can act as a…

A: It is based on the concept of acid-base reaction.Here we are required to find the net ionic equation…

Q: MCQ 2: The number of times a p* is heavier than an e is A. 18 times B. 184 times C. 200 times D.…

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Q: What is the mass in grams of 49.60 moles of LICI?

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Q: information, deduce the formulas for compounds with the following codes: (a) 12 (b) 113 (c) 123 (d)…

A: The chemical formula for the chlorofluorocarbons = 90+ codeFrom the numeral,the first digit in the…

Q: 13. Which of the following statements about a thermal reaction involving an even number of electron…

A: As per our community guidelines, we can only answer one question and as you haven't specified which…

Q: 2.) Predict the product of the following epoxide ring opening, and provide a mechanism for its…

A: In the given reaction, first of all there is protonation of the Oxygen containing lone pairs and…

Q: -23 An oxygen atom has a mass of 2.66 x 10 g and a glass of water has a mass of 0.050 kg. Use this…

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Q: Which group of substances contains only elements?   A. salt, copper, aluminum   B. silicon,…

A: There should not be any mixture or molecule or compound in the option.

Q: 30. Calculate the entropy change for formation of exactly 1 mol of each of these gaseous…

A: Interpretation - To calculate the entropy change for formation of exactly 1 mol of each of these…

Q: Unanswered You Answered Correct Answer You Answered Correct Answer Question 10 Predict the identity…

A: Daughter nuclei are formed as a result of radioactive decay, which is a process in which the nucleus…

Q: Question 39. The correct answer is in pink.

A: Given half-cell reactions:

Q: Which technique separates components of amixture based on the size of its particles? A. filtration…

A: The technique which separates components of mixture based on particle size has to be given.

Q: A mixture of LİHCO3 and sand weighing 9.20 g is heated. After cooling, the residue composed of…

A: Given: The mass of LiHCO3 + Sand = 9.20 g.          (Before heating). The mass of Li2CO3 + Sand =…

Q: The isotopes act as ____________ for measuring time. ▪To use this method, scientists must know:…

A: The blanks given are, The isotopes act as ____________ for measuring time. ▪To use this method,…

Q: Neutral atoms always have the same number of __________________.

A: A atom consist neutron , proton  and electrons. Neutrons and protons are present  in nucleus. Atomic…

Q: Covert 22387 km to miles by hand

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Q: b. decreased from 1.15 atm to 520 torr at constant temperature? c. increased by 26% at constant…

A: Pressure-Volume relationship:

Q: propriate items to their respective bins. [Co(en) 2 (C₂04)]+ 4 Na₂ [CdBr4] [Cu(bipy) 2I]I 5 6 K3…

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Q: Round 12.3456 to 4 significant figures

A: 1.All non zero numbers are counting as significant figures.  2. If right of the last significant…

Q: 62. Calculate the equilibrium constant for the formation of NiO at 1627 °C. Can the reaction proceed…

A: The equilibrium constant for the formation of NiO(s) from the reaction of O2 with Ni(s) is needed to…

Q: A(n) ______________________ has a negative charge an a mass about 1,800 times smaller than a proton.…

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Q: 6.) Please write the correct: molecules. according to IUPAC nomenclature rules for the following он…

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Q: 3.) Provide the missing reagents or major product for the following reactions. Be sure to include…

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Q: A mixture of copper sulfate and water is heated, leaving a residue of copper sulfate in the…

A: The solution is given below -

Q: 23 An oxygen atom has a mass of 2.66 x 10 g and a glass of water has a mass of 0.050 kg. Use this…

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Q: Below are 3 student opinions, which student is correct and why?

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Q: ata Table 1. Analysis of Alka-SelltzerⓇ Mass of acetic acid Density of acetic acid Concentration of…

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Q: Which practice is NOT used to gauge accuracy? raw data and results from calibration checks B.…

A: Correct option is (e) sample rejection .

Q: Dr. Albert Apale, a well known Chemist, tested Random samples in the laboratory. The compounds were…

A: Compounds are classified as :  Ionic Saturated with 6 carbon molecules Unsaturated with 6 carbon…

Q: Mass of Crucible and Cover= 62.17 g Mass of ……… and solid hydrate= 63.28 g Mass of ………. And residue=…

A: Note - Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: TUBE 1 2 4 6 7 8 9. 500ul-a 500ul-b 500ul-c 50ul-a 50ul-b 50ul-c 5ul-a 5ul-b 5ul-c LABEL Initial…

A: We are given 3 experimental values for each measurement, and we have to find standard deviation for…

Q: 1. Ms. Smith left the ice cream out long enough that it melted. She wasn't concerned though as she…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The atomic mass unit is based on the mass of the _________ atom.

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Q: You want to explore the different colors of ink that are combined to make the black ink in your dry…

A: A. Filtration - Technique used to separate solid and fluid materials form a mixture. It can be…

Q: Does a reaction occur when aqueous solutions of potassium acetate and aluminum sulfate are combined?…

A: Potassium acetate and aluminum sulfate are ionic compounds. Both of these ionic compounds are…

Q: 1.88 g of salicylic acid reacted with it, how many grams of aspirin can be formed? Complete the…

A: Theoretical yield is the amount of aspirin that should be produced if all of the 2.18g of Salicylic…

Q: A 1.02 mol sample of hydrogen gas at a temperature of 13.0 °C is found to occupy a volume of 22.0…

A: Moles of Hydrogen gas = 1.02 moleTemperature of hydrogen gas = 13.0°C = (13.0 + 273.15) K = 286.15…

Q: LEFT silver (Ag) magnesium RIGHT copper (Cu) zinc (Zn) VOLTAGE +0.43 -1.62 MACROSCOPIC OBSERVATIONS…

A: In a redox reaction, the process of removal of electrons from a neutral atom is known as oxidation…

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.