Do you round the vant hoff to the nearest whole or leave it as a decimal?

Q: A chemist measures the amount of chlorine gas produced during an experiment. She finds that 59.1 g…

A: The answer to the following question is:

Q: c. You make a 100 mL, 1 mM solution of glycine in water using a balance with an uncertainty of 0.1…

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Q: The correct decimal representation of 6.453 * 103 is?

A: Scientific notation: Scientific notation is a way of expressing numbers to be conveniently written…

Q: What is the Density of Cl2 is represented by 18.8L at 2.68atm 23.9°C   Express your answer to  2…

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Q: what is the measurement, uncertainty, and nuber of significant figures?

A: Interpretation - To explain the measurement, uncertainty and number of significant figures in the…

Q: how many significant figures would my answer have if i devide 94.997grams/10mL?

A: Significant figures- Uncertainty in measured value leads to uncertainty in calculated results.…

Q: The number 18.01937 rounded to 3 significant figures is

A: Rounding a number to three significant figures in the same way ,rounding to three decimal places.…

Q: The image below illustrate the complete separation. True or False? O True False

A: In the given image it is clear that there are three type of molecules: Red ones Blue ones And black…

Q: (0) OH /H,0 HC-C-CH2-CH3 CI (i) H3C он H,O*/A H;C. CH3 H3C CH3 100% - 2020 docx (93 KB Oct 22, 2020…

A: 1) nucleophile OH will add in place of Cl  2) first oH will gain H+ and then H2O will eliminate and…

Q: Assigning Appropriate Significant FiguresThe state of Colorado is listed in a road atlas as having a…

A: Given information,        Population in Colorado is 5,546,574         Area of Colorado is 104,091…

Q: Should I write my answer as a decimal

A: The dissociation constant expression would be:   Kf=1/Kd  Kd = 1/Kf  Kd = 1/1.0×1016    Kd = 1.0 ×…

Q: hat is the block,number and period for chlorine

A: FOR CHLORINE ATOM(Cl) BLOCK-P      (OUTER MOST ELECTRON PRESENT IN P ORBITAL) PERIOD -3 GROUP 17 OR…

Q: What is an exact number? How are exact numbers treated dif-ferently from other numbers in a…

A: The significant figures can be defined as the digits in the given number that carry some meaning and…

Q: The number 31.00065 rounded to 4 significant figures is

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Q: what is the sighnifcant figure of 100.21x 0.38

A: Significant figures : Significant figures are the number of digits in a value, often a measurement,…

Q: and 1.0087 amu, respectively. Express your answers in three decimal places in scientific notation,…

A: Observed atomic mass = 202.9723 amu Mass of proton = 1.0078 amu Mass of neutron = 1.0087 amu Element…

Q: Given 1) SCI2, and 2) SO3:

A: Lewis Structure is defined as a  representation of the valence shell electrons which are present in…

Q: Perform the following and give your answer with the proper number of sigifigs 0.02070 ÷ 4.50…

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Q: d) The number of u e) The ml values al f) The number of u g) The total numbe

A: n =principal quantum Number l = angular quantum Number l = 0 s orbital l= 1 p orbital  l= 2 F…

Q: If Obje ct has a den s.t4 Of 8.65 g/cm³ What is its an density in 3 units Of

A: We have been asked to convert density from g/cm3 to kg/m3 It is solved in step 2.

Q: C3S2 express your answer in atomic mass units to two decimal places

A: Calculation for molar mass of C3S2:

Q: 17. If 223 g of Asbestos occupy 97.0 cm³, what is the density?

A: Density of any substance is calculated as follows: Density=massvolume and its unit is gcm-3

Q: (c) (26.9 g- 6.5 g)/(0.061 mL - 0.003 mL) i Units no units. thev cancel Hint

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Q: If it says to add 64oz to 250 gallons, hiw many ounces would you add to 30 gallons?

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Q: 2. A straight line has a slope of 3200 and an intercept X?

A: According to the question, we have: Slope = m = 3200 Intercept = c = -0.025 y = 0.450

Q: where the numbers 2 and 3 in the last term are exact 1.67 Carry out each calculation, paying special…

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Q: Celsius and 73

A: According to the ideal gas equation pressure is directly proportional to the number of moles,…

Q: Part C 0.115 M pyridine (C,H;N). Express your answer using two decimal places. • O D) ? pH =

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Q: 1?

A: Dipole moment =       charge(q) × bond length(l) Dipole moment is the product of charge (magnitude…

Q: The number 114.4335 rounded to 5 significant figures is

A: All non zero numbers are consider as significant figures.

Q: 5. (44.8±.7)x (98.66 ±.05)%3=

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

Q: What is the ln of 1/time of the time is 449.7 seconds?

A: Given,t=  449.7 seconds

Q: Density of .80/cm3 if u have 60cm3 of the substance what would it’s mass be?

A: The density of a substance is defined as a mass of a unit volume of the substance. The density of a…

Q: Da IXL- Write varia X Da IXL-Simplify ve X D0 IXL - Write varia K RC Gram to gra X Da IXL-Arc i…

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Q: How many 1-fm squares does it take to construct a square that is 1 m on each side?

A: Number of square can be calculated using area of squares.

Q: What is the number of significant figures does the sum of the following contain   .3+ 5.652 , the…

A: 0.3+ 5.652

Q: What is the percentage uncertainty with the following measurement 0.100 ± 0.005 g? Provide your…

A: Given:  0.100 ± 0.005 To find: The percentage uncertainity of the given measurement

Q: 200e 10000e S00000 TT

A:

Q: your

A: According to the question, a current is passed through a solution of copper(II) sulfate long enough…

Q: What is the molar mass of alanine, C3H7NO2? • Write your answer using ONE decimal place, even if…

A: Given, Molar mass of Alanine, C3H7NO2 = ? Note:  Atomic mass of C = 12.01 g/mol Atomic mass of H =…

Q: ding coefficients (1, 2, 3, ...) in blanks). H3PO4 → H20

A: NaOH + H3PO4 -----> Na3PO4 + H2O  You should know about that, 1mol of H3PO4 neutralized by three…

Q: Round to 3 significant figures 0.0014851

A: Significant figures refer to the number of digits that has contribution to the value or measurement.…

Q: nd write it it standard notation with all zeroes, adding commas

A: 1moles of any substance is equal to Avogadro number. And Avagadro number is constant for any…

Q: Which purity of IPA has a higher density, 70% or 99%?

A: IPA is isopropyl alcohol. It is commonly used as a disinfectant within a pharmaceutical company. IPA…

Q: K3PO4 (all numbers are subscripts)

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Q: Part A Si Express your answers as integers separated by commas. ? • Part B Cr Express your answers…

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Q: 3. What is the density (in g/cm3) of a solid sphere with a mass of 8235 mg and a radius of 5.0 mm?

A: In given question  Density = mass / volume  Formula used.

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.