Question: Classify each of the following properties as physical or chemical. Explain your reasoning in each case. b. Sodium metal reacts vigorously with water.

Q: A sample of hydrogen gas at a pressure of 1.03 atm and a temperature of 24.3 °C, occupies a volume…

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Q: Consider the equilibrium for the transesterification reaction.How do you think the amount of…

A: #1:  The balanced equation for the esterification reaction is: RCOOH(Acid) + R"-OH(1-propanol)…

Q: Valence Bond Lewis Structure: Molecular Orbital Diagram using shorthand notation: Molecule / lon: OF…

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Q: Waste cooking oil contains free fatty acids as well as triacylglycerols. Draw the chemical equation…

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Q: An aquarium measures 16 in. x 8 in. x 10 in. How many liters of water does it hold? How many…

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Q: a. Account for this fact: Although methanol (CH3OH) (bp, 64.7 °C) has a higher molar mass than water…

A: Solving the following 2 objective questions :  Hydrogen bonding - occurs in the molecules where H is…

Q: hat type of reaction occurs when a quantity of water is added to cyclohexene in e presence of an…

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Q: III. Write the name of the following compounds. 1. (NH4)2SO4 2. NaH₂PO4 3. Cr(CH3CO2)3 4. Sn(HPO4)2…

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Q: How many moles of nitrogen atoms are there in 1.64 x 1023 molecules of dinitrogen trichloride,…

A: Mole can be defined as a standard unit for measuring large quantities of very small and entities…

Q: If you had 1 mol of Mn4(ClO4)3 how many moles of Cl would there be?

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Q: Why do you think the helium atoms repel each other? (be sure to include descriptions of relevant…

A: He atoms are repell because :

Q: 15 Which best describes the atom: 26Fe A. 56 protons, 26 neutrons B. 26 protons, 30 neutrons C. 26…

A: Since you have asked a question with multiple sub-parts, as per our company guidelines we are…

Q: Sodium chloride (NaCl) exhibits predominantly ionic bonding. The Na+ and Cl- ions have electron…

A: The general electronic configuration of inert gas is nS2 nP6. That is their valence shell is…

Q: Convert to a bond line structure

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Q: Five students performed a Kjeldahl nitrogen analysis of a protein sample. The weight % nitrogen…

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Q: Use a spreadsheet to calculate the mean and standard deviation of the data set. 54.99, 54.40, 54.60,…

A: Given - expected values are 54.99, 54.40, 54.60, 54.63, 54.36

Q: Can you write out the condensed structure for molecule B

A: In the case of noncyclic organic molecules, we write the condensed structure by hiding all the sigma…

Q: How many grams of carbon are in 1.13 x 1025 molecules of (carbon dixide) CO2 ?

A: Given, Number of molecules of CO2 = 1.13 x 1025  Mass of Carbon (C) = ? Note: molar mass of C =…

Q: 1. Consider the following food label Serving Size 2tsp (5g) Serving per container about 5 Amount per…

A: To answer questions about the given food label.

Q: Density is an intensive physical property. Look-up the meaning of an intensive property of matter…

A: Intensive properties — Those properties of substance which doesn't depend on mass and volume of…

Q: Iodomethane is a common liquid used in the laboratory. It vaporizes readily. If the pressure of…

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Q: QUESTION 21 An unconscious patient arrives at the ER. The patient is breathing heavily (panting)…

A: #Q.21: Given PCO2 = 40 mmHg  pH of the H2CO3/HCO3- buffer system = 7.2  First, we have to find the…

Q: Why are spontaneous and non-spontaneous reactions often coupled?

A: Spontaneous reaction: the reaction which take place on its own without any initiation are…

Q: Classify/ Name the cycloalkanes below:

A: The naming of organic compounds can be done with the help of rules of international union of pure…

Q: 1. Consider this compound: b) c) Label A B JOH CH₂ CH3 How many signals would this compound give in…

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Q: II. Write the chemical formula and name of the following compounds. Ion Symbol Compound made of 1.…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: How would I convert each condensed formula  to a  lewis structure 1a. (CH3)2CHOCH2CH2CH2OH     1b.…

A: Lewis structure :          Lewis structure is a very simplified representation of the valance shell…

Q: изон CH3 OH CH3 OH

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Q: For the K shell, the four quantum numbers for each of the two electrons in the is state, in the…

A: We would use quantum number rules to determine the four quantum numbers for all electrons in L and M…

Q: 3. How many electrons does the aromatic # system? TT 4. Ö: N-Phenylsydnone, so-nam Sydney,…

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Q: Sulfate (SO2) is typically determined by dissolving in H₂O followed by precipitation as BaSO4 via…

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Q: ? ОН Racemic ..... ОН

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Q: An average gas fireplace uses about 200 gallons (760,000 cm3) of propane gas per year. Assume that…

A: We would use ideal gas equation to calculate the mass of propane used .

Q: 1. Diels-Alder reactions come in many different types. The following is an intramolecular example,…

A: A Diels-Alder reaction is the reaction between a conjugated dien and an alkene to form a six…

Q: balancing equation: use coefficient to balance the equation below. please check the screenshot

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Q: Draw an equivalent resonance structure that minimizes charge. Include all lone pairs in your…

A: Resonance structures can be defined as the structures that collectively represent a polyatomic ion.…

Q: The hydrogen atom has a volume of approximately 6.2 × 10-³1 m³. What is this volume in each unit?

A: 1 nanometer (nm) = 1 × 10-9 meter (m) So,  1 nm3 = (1×10-9 m)3 Or, 1 nm3 = 1×10-27 m3

Q: Iculate the atomic weight of Magnesium given the mass and natural occurrence of each tope. Express…

A: We have given the masses and isotopic abundance of three isotopes of magnesium. Isotopes of an…

Q: So would this be an acceptable reasoning for the answer-

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Q: What is the correct assignment of the names of the following heterocycles?

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Q: Plutonium-236 is an alpha emitter with a half-life of 2.86 years. How long will it take for the 1.20…

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Q: Q3. When the orgo students did the experiment, they weighed out 2.105 g of Salicylic acid  and mixed…

A: Answer: Molecular formula of Salicylic acid=C7H6O3 Molecular formula of Acetylsalicylic acid= C9H8O4…

Q: 10. Rank the following protons in the order of increasing pka. HB Me O A HB <HA <HD <Hc B HD <Hc<HB…

A: As we know, Higher the acidic strength, lower the value of pKa. Carboxylic acid hydrogen is more…

Q: Consider the following reaction: 2+ CaCO3 (s) + 2H3O+ (aq) ⇒Ca²+ (aq) + CO₂(g) + (aq) What will you…

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Q: Q: A worker’s exposure to solvents was monitored for a full shift. The results are presented in the…

A: TLV-TWA stands for Threshold Limit Value-Time-Weighed Average which is defined as the threshold…

Q: In the illustration, N is color-coded as blue and O is color-coded as red. ⠀- What kind of change is…

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Q: . How to prepare a 100 ml solution of a 0.01 M of methylene blue (show solution) B. Can methylene…

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Q: One of the chemical properties of crude oil is....... O boiling point O Viscosity O Flash point O It…

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Q: A student reads a barometer in the laboratory and finds the prevailing atmospheric pressure to be…

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Q: 11. What is the most favorable site of protonation of 2-aminoimidazole? NH₂ NH₂ A ΝΗ ΝΗ NH₂ B NH H+…

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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.