The mass of earth is 5.98 ×10²⁴ kg. What is the mass expressed in tera-grams?

Q: Draw the major organic product(s) of the reaction shown. Multiple products may be drawn in one box: ...

A: Organic reactions are those in which organic compounds react with each other to form products.

Q: Draw at least five molecules in the box to represents CO2 after this phase change is completed

A: Given: The symbols for the C and O atoms are . And the molecule is CO2.  

Q: A white powder is analyzed and found to contain 43.64% phosphorus, and 56.36% oxygen by mass. The co...

A: Given: Percent by mass of P = 43.64 % Percent by mass of O = 56.36 % And molar mass of compound = 28...

Q: grams

A:

Q: Determine the base ionization constant (in x 10-5) of a 0.0925 g sample of a weak base (molar mass =...

A: Given :- Mass of weak base = 0.0925 g Molar mass of weak base = 17.03 g/mol Volume of water = 100 mL...

Q: 3.67 X 2.3=  4.2 X 5= 6.3 X 2.4= 4 X 1.2= 12.5 X 4.7=

A:

Q: CDC, (soivent) 200 150 100 50

A: Soln

Q: How many grams are in 2.36 moles of NaOH? (molar mass of NaOH = 39.997 g/mol)

A: We can solve this problem using the "Mole Concept" Formula for number of moles : Number of Moles = M...

Q: What is the initial mass of copper (in g) in the Cu(NO3)2 solution. Cu(NO3)2(aq)+ 2NaOH(aq)-> 2NaNO3...

A: Ans. 63.5 g of Cu is present in Cu(NO3)2 solution

Q: 20. When a Ca atom loses all of its valence electrons, it is isoelectronic with? (Show the ground st...

A: Atomic number of Ca is 20.  Isolelectronic species are those which have same number of electrons.  

Q: What is a rate-limiting step? What is the method of initial rates?

A: Rate-limiting step is defined as the slowest step of all the steps in a reaction which determines th...

Q: provide five examples of  alkyl halide

A: Introduction :  Alkyl Halide can be defined as when one or more hydrogen atom in an alkane are repla...

Q: Consider the following reactions: A B, K,=6.63 A C, K2=2.00 What is K for the reaction C B?

A:

Q: elsiini Draw and build ethene, CH,CH2. Be sure your drawing correc

A: Draw the structure of ethene?

Q: uestions On complete combustion, one mole of an alkane produces two moles of carbon dioxide and thre...

A: Given: Moles of CO2 = 2 mol Moles of water = 3 mol

Q: For your research project, you need to use isotopic labels. For this you buy chlorine gas (Cl2) that...

A: The basic constituent of a substance is known as an atom that has a nucleus consisting of protons an...

Q: quantity of N2 gas originally held at 3.80 atm pressure in a 1.00 L container at 26oC is transferred...

A: Given N2 P = 3.8 atm , V = 1L, T = 26°C = 299 K O2 P = 4.75 atm , V = 2.5 L, T = 26°C = 299 K

Q: t mass of ac

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Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i...

A:

Q: Explain why 1-butanol and cyclohexanol are immiscible Explain why 2-methylpropanol and ethylene glyc...

A: Solubility is describe as "LIKE DISSOLVE LIKE". Generally polar solute can be soluble in polar solve...

Q: Select the name of the following structure: CH3CH2 O CCH2CH2CH3

A:

Q: What is the difference between the excitation and emission spectrum?

A: The excitation spectrum look similar if not identical to the absorption spectrum obtained in UV/VIS ...

Q: ION NO; Ch C:0,2- CO2- Cr* Mg Cu NH, Al+

A: Ionic compound  Ionic compound composed of cation which is positively charged (+charge) and an anion...

Q: A student has a stock solution of 30.0% w/v H2O2 (hydrogen peroxide). Describe how the student shoul...

A:

Q: 24. For the reaction: H2O(1) - H2O(g). Calculate AG at 30 °C (Attach your solution) O 1.98 kcal O 1....

A: So 2nd options seems more accurate that is 1.89kcal

Q: 1s-1. The reaction 2 N,O5(g) →4 NO2(g) + O2(g) was studied and the rate of change of the concentrati...

A: Given Reaction:- 2N2O5(g) -------> 4NO2(g) + O2(g) 

Q: Synthesize the compund (Nifedipine) via Hantzsch dihydropyridine synthesis.

A: Hantzsch dihydropyridine synthesis of Nifedipine involves the reaction of ethyl acetoacetate, 2-nito...

Q: A 2.0 g of MgCO3 was dissolved and diluted to exactly 500-mL volumetric  flask. If 50-mL aliquot was...

A: Mass of MgCO3 = 2g Mol. Mass of MgCO3 = 84g/mol Volume of dilution = 500ml Volume of aliquot = 50ml ...

Q: a) Describe an atom using the Bohr model and wave mechanics model. b) What are the differences betwe...

A: ATOMIC MODEL THEORIES

Q: Answer true or false. (a) For Group 1A and Group 2A elements, the name of the ion each form is simp...

A: Since you have posted multiple questions we will solve first three subparts for you. To get remainin...

Q: L. The hydrocarbon, dodecane, is used to make detergents. It is an alkane and has the molecular form...

A: The hydrocarbon dodecane is used to make detergents.

Q: Explain the photosynthesis prcoess and respiration process in a tree.

A: Photosynthesis is a process by which plant turns water, sunlight and Corbon dioxide into oxygen and ...

Q: What is the reaction equation for copper (II) and thiosulfate ions

A:

Q: QUESTION 10 An oxide of iron has the formula Fe 30 4. What mass percent of iron does it contain? O a...

A: Formula of the compound is Fe3O4. Molar mass of Fe3O4 = 231.53g/mol

Q: Cite one research article that used an IR spectrophotometer in their study and discuss how they used...

A: A question based on IR spectroscopy that is to be accomplished. 

Q: Solve for number 4 and 5.

A: The question is based upon intermolecular forces. The Intermolecular forces are the force which medi...

Q: is water a good solvent for recrystallization for acetanilide based on the image?

A: The answer is as follows:  

Q: How many moles of H₂O can be formed from 1.71 × 10²³ molecules of NH₃ from the following equation? 4...

A: Given, 4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 6 H₂O(g) Number of molecules of NH3 = 1.71 × 10²³ molecules Mo...

Q: Which one of the following is not an organic pollutant: 1. a. Chloroform b. Benzene c. Cobalt chlori...

A: On the basis of types of compounds these are divided into two pats as ; Organic compounds :-  The co...

Q: Enter your answer in the box provided. What is the molality of a solution consisting of 56.1 mL of b...

A: Molality (m) :-  The number of moles of solute dissolved in 1 kg of solvent is defined as molality  ...

Q: is the smallest particle of an element that retains its properties.

A: An element is a purest substance .

Q: Put the following acids in order from strongest to weakest. (1 is the strongest and 5 is the weakest...

A: The acid dissociation constant (Ka) value is used to indicate the strength of acids. Greater the val...

Q: 1. Write a balanced nuciear equations for the following: a) the loss of an alpha particle by Thorium...

A: Nuclear Chemistry can be defined as the branch of chemistry that deals with radioactivity, nuclear r...

Q: If 10 g of water at 52oC and 25 g of water at 10oC were mixed in an insulated container, what will b...

A: Given: Specific heat of water = 4.184 J/g°C

Q: The gas nitrous oxide, N2O, is a dental anesthetic. a) Calculate the root-mean square velocity (ums ...

A:

Q: -0.500 g sample consisting of NazCO3, NaHCO3, and inert materials was dissolved in sufficient vater ...

A: Soln

Q: Calculate the molarity of 39.0 g of table sugar (C12H2201) in 100. mL of solution. M

A:

Q: How many grams of MgCl2 are needed to make 700.0 mL of a 1.4 M solution? How many grams of NaBr (mol...

A:

Q: Make a block schematic diagram for the precipitation, separation and identification of the following...

A: We have to identify the ions Al+3, Fe+3, and Ni+2ions.

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.