Thermal changes are the focus of he quantity of energy released or absorbed is determined by thermochemistry. thermodynamics, which is part of physical chemistry.

Q: was S18 less than How much did the backpack cost?

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Q: A water carbonating kit uses tanks of CO₂, each with a volume of 0.250 L. Each tank weighs 1.04 x…

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

A: Organic molecules:

Q: onstruct the expression for Kc for the llowing reaction. 2 Ag(s) + Zn*(aq) =2 Ag*(aq) + Zn(s) 1 Drag…

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Q: Select the best answer. 1.) MeMgBr (excess) 2)H*, H0 3.) NaH 4.) CH .CI b.) R R. d.) e) R. R

A: Acid chloride with excess grignard reagent gives tertiary alcohol Alcohol with base and alkyl halide…

Q: (10 points) Copper consists primarily of two isotopes, Copper-63 and Copper-65. The weighted average…

A: The formula used to calculate the weighted average isotopic mass is written below: Weighted average…

Q: Σ W/ Attempts done: 1/2 15 o Write the formula for magnesium sulfate, which has 1 magnesium atom, 4…

A: Magnesium sulfate is an inorganic salt that contains 1magnesium, 1sulfur and 4oxygen atoms

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: Question 1. Can you confirm if my work is correct, if not can you show me where I went wrong?

A: Mass percent of component in a solution is the mass of the component present per 100 g of the…

Q: 8. HMAC=5083dd0d4d151e83553557f162ba7724#10301 11 of 16 I Review | Constants | Periodic Table Submit…

A: IUPAC nomenclature puts out guidelines for the naming of Chemical compounds. Steps involved in…

Q: How many different chemical compounds and elementary substances are represented in the image? A. O…

A: Elementary substances are made up of only one type of element. Chemical compound is a substance…

Q: A fictitious element Z has an average atomic mass of 223.21 u.223.21 u. Element Z has two naturally…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: Mass of one a mu) Carbon Type 1                             12.0 Carbon Type 2…

A: Isotopes are variants of a particular chemical element which differ in neutron number, and…

Q: Nonmetals typically ______ and metals typically ______.   A. donate  neutrons; accept…

A: Non-metals typically ______ and metals typically ______. A.donate  neutrons; accept neutrons…

Q: Answer the following if True or False. (1-10) 1. Radioactivity emanates from stable isotopes of…

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Q: All non-metals form __________ when they ____________ electrons

A: Metals loss electrons to give a positive ion. Non-metals accept electrons to give a negative ion.…

Q: 7. Identify the acid and the base (for the forward direction) in each of the following reactions:…

A: Solving the first 3 subparts as per guidelines, for further assistance post the questions seperately…

Q: One isotope of a metallic element has mass number 36 and has 24 neutrons in the nucleus. It forms an…

A: Given :-  Mass number = 36 Total neutrons = 24   Total electrons = 10  To determine :-  Symbol for…

Q: A(n) ______________________ contains two or more atoms that are bound together by sharing electrons…

A: A bond which is formed by the sharing of electrons between atoms is generally known as covalent…

Q: The type of element an atom is depends solely on the number of ______________________ it has.   a.…

A: Explained as follows

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

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Q: 4) Write the chemical equation for the formation of (a) the hemiacetal, and, (b) the acetal when…

A: The question is based on organic reactions.     we need to identify the product formed and explain…

Q: Standardization of NaOH, why do you have to boil DI water? Why can’t NaOH be used as a primary…

A: Standardization of NaOH refers to the process of determining the exact concentration of a NaOH…

Q: (a) Calculate the [H30+] for each buffer solution and enter the value in Table D. Use the formula…

A: This question is related to finding out the pKeq and relevant statistics of the table. Follow the…

Q: Part C 68.9 mol Xe ΑΣφ a**. m%3D Submit Request Answer Part D 1.55 mol S nνα ΑΣφ m%3D

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Q: What is the estimated average atomic mass for this element? A. less than 86 amu C. exactly 88 amu…

A: The instrumental method that is used to determine the structure of the chemical compound by…

Q: 4 Br 3 mCPBA 5 1 NaOH to 2 Br

A: Multistep synthesis is given.We have to use suitable reagents to carry out the synthesis.

Q: An oceanographer creates a model of a wave tank with a sand table to simulate beach erosion. What…

A: Here, the oceanographer creates the model to simulate beach erosion.

Q: Combustion of hydrocarbons such as pentane (C,H,12) produces carbon dioxide, a "greenhouse gas."…

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Q: Atoms with the same number of protons but with different electrical charges _____.

A: Electric Charge is two types.    Positive charge Cation and negative charge anions

Q: MgCl₂ dissolves in water to produce [Mg(H₂O)]²+. The value of n in this formula is: a. 2 b. 4 c. 6…

A: We need to find the value of n in the complex compound [Mg(H2O)n]2+. This is formed by the…

Q: Pure gold is usually too soft for jewelry, so it is often alloyed with other metals Part A How many…

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Q: Fill in the gaps in the following table, assuming each column represents a neutral atom: 1 4 112 Сd…

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Q: Balance each equation by inserting coefficients as needed. equation 1: KHF, KF+H, +F 2 equation 2:…

A: By inserting ‘2’ as coefficient before KF and KHF2 the equation is balanced atomically. The given…

Q: Which statement describes a chemical property of hydrogen gas 1. Hydrogen gas burns in air. 2.…

A: Hydrogen is the most abundant element in the universe, it is found in the sun and the stars.It is a…

Q: What is wrong with the ion pictured? (1 Point) [K]

A: In this ion of potassium -

Q: Rank these confirmations from least to most stable ( H. H Br Br. tCH3 H3CtH H,C HHC CH, H. H. H,C H.…

A: We are given the different conformation of a molecule.

Q: Multiplication of equivalent weight and valency of an element is equal to ______. A) Density B)…

A: Equivalent weight: It is the weight of a substance that is going to react with other substances.…

Q: I am having issues with 1.7 a .. I don't understand why this had brackets and the charge

A: Charge written after the brackets represents the overall charge on the specie.

Q: Combine the cations and a formulas of chemical npounds. (1 PT. EACH) 02- ns a+ F- Co,2- e3+ |3+ +

A: Compound is formed by cation and anion.  So, formula of compounds are

Q: 52.96 % 0679 Submit Previous Answers Correct Part D Calculate the percent C20 in K3[Al(C2O4)3]-3H20…

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Q: Answer multiple choice 1. The region surrounding a charged particle in which an electric force is…

A: Answer

Q: This simplified model depicts a carbon-12 atom. The atom's nucleus consists of six protons, each…

A: Carbon-12  Atomic number = Number of protons = Number of electrons = 6 Mass number (A) = Number of…

Q: Using the provided table, determine the molar enthalpy (in kJ/mol) for the reaction 2 NH3(g) + 3 N₂O…

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Q: 9. 10. NO₂ SO₂H NO₂ NO₂ AIC13 AlBry (CH3)3CCH₂Cl AICI3 SO3 H₂SO4 CH₂COCI AICI3 t 3 N. R. S03H N.R.…

A: According to guidelines I solved 3 questions..if you want more pls repost with specifying the…

Q: ations have a positive charge because _____________   a. the number of subatomic particles in the…

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