Which of the following substances is a heterogeneous mixture?  B. air D. water and oil C. wine A. a glass of orange juice   What are atoms or group of atoms that have negatively charged ions?    B. Cations A. Ions D. Polyatomic ions C. Anions

Q: A student prepares a 0.28 mM aqueous solution of acetic acid (CH,CO,H). Calculate the fraction of ac...

A:

Q: If equal numbers of molecules of H2 (molar mass=2) , O2 (molar mass=32), and N2 (molar mass=28) are ...

A: Different gas have different velocity as their molecular masses are different. 

Q: Sight along the C2-C3 bond of butan-2-amine (CH3CH(NH2)CH2CH3), and draw a Newman projection of the ...

A: Newmann projection is a drawing where a molecule is imagined to be seen through a cylinder.We only d...

Q: A chemist prepares a solution of sodium nitrate (NaNO,) by measuring out 270. g of sodium nitrate in...

A:

Q: (d) CH—СH-0—СHҙ and CH CH-CHO (е) CН,СH,CHО and CH;COCH,

A: Here we have to differentiate the pair of organic compounds by IR spectroscopy.  The different funct...

Q: A chemist prepares a solution of sodium carbonate (Na, CO,) by measuring out 77.3 g of sodium carbon...

A: Given :- Mass of Na2CO3 = 77.3 g  Volume of solution = 300. mL  To calculate :-  Molar concentration...

Q: A chemistry student weighs out 0.187 g of sulfurous acid (H,So,), a diprotic acid, into a 250. mL vo...

A:

Q: A diver has an initial lung volume of 1.98 L, which is filled with compressed air atmosphere of 35.1...

A:

Q: Write the mechanism for the reaction of 1-butanol with HBr and include a brief explanation of the fo...

A:  Butanol reacts with HBr to give butylbromide via second order substitution mechanism. In this react...

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab, calculat...

A:

Q: 6) Use a Jablonski diagram or potential energy curves to show the theoretical difference between flu...

A: Fluorescence process occurs between similar spin states, whereas phosphorescence occurs between diff...

Q: A chemist dissolves 839. mg of pure nitric acid in enough water to make up 380. mL of solution. Calc...

A: Given, mass of nitric acid (HNO3) = 839 mg = 0.839 g Volume of the solution = 380 mL = 0.380 L pH of...

Q: (b) In a solution calorimeter, what are the signs of AT and AH for an endothermic reaction? sign of ...

A:

Q: CH3 is exposed to excess conc. HBr at high temperature

A:

Q: A solution is made by dissolving 19.5 g of CH₃NH₃NO₃ in 500.0 mL of water. Using Ka(CH₃NH₃⁺) = 2.3 ×...

A:

Q: 18.4 (Pages 803-817): Watch KCV18.4A, IWE 18.6. • Part C Consider the titration of a 35.0 mL sample ...

A: C.) HBr is a strong acid and KOH is a strong base , so they would undergo neutralization reaction to...

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That i...

A: Step by step solution are below

Q: If it can be chemically decomposed, what type of matter is that substance? D. Heterogeneous A....

A:

Q: -A gas of R= 219 kgm-K undergo a process and results in these changes: AH = %3D 2190 KJ and AU = 145...

A: Given: R = 219 J/Kgm -K ∆H = 2190 KJ ∆U =1458 K Mass = 1.8 Kgm To determine: a) Cv ,Cp  and k b) ∆T ...

Q: A chemist dissolves 656. mg of pure barium hydroxide in enough water to make up 90. mL of solution. ...

A:

Q: Write the empirical formula for at least four ionic compounds that could be formed from the followin...

A: Write the empirical formula of the given ions--

Q: What is the molarity of a sodium fluoride solution prepared by dissolving 2.51g of Sodium floride in...

A:

Q: At 3373 degC and 1 atm total pressure, water is 20.77% dissociated at equilibrium by the way of the ...

A: Solution                           Given that   2 H2O(g) ⇋ 2 H2(g) + O2(g).  A) Calculate the  K b.)...

Q: type of compound (check all that apply) compound strong weak strong acid weak ionic molecular acid b...

A: We need to classify the given compound in the table

Q: A buffer solution is made using a weak acid, HA with a p?a of 7.77. If the ratio of [A−] to [HA] is ...

A:

Q: 12) Based on the acid structures below, which option ranks the acids in order of increasing K.? но. ...

A: Carboxylic acids are acidic in nature and the acidity of carboxylic acid depends on the nature of th...

Q: Acid and Base Characteristics Substance A Substance B Substance C Substance D Sour taste Bitter tast...

A: Since we know that metal reacts with acid (strong) gives hydrogen gas... Blue litmus turn into red {...

Q: 1. H* [-H20] HO HO OH (excess) но. 2. NalO4 CH3 3. Ph3P=/ ČH3 OH H* [-H20] HO, ČH3 1. H* (-H20] он I...

A:

Q: Le Kh of

A:

Q: CH3 PCC, CH,CI, reacting with

A:

Q: Sketch and explain, the number of atoms, coordination number and void space of a body centered cubic...

A: Contribution of the atoms present in the corners of the unit cell (per unit cell)=8*18=1 Contributio...

Q: Name: 15. Which of the following reaction is a decomposition reaction? MgCl:(aq) + H;O(t) → Mg"(aq) ...

A:

Q: For each of the salts on the left, match the salts on the right that can be compared directly, using...

A:

Q: 12 M. Calculate the H,0' concentration. Be sure your answer has 1 significant digits. An aqueous sol...

A:

Q: A 19.0 g sample of aluminum, which has a specific heat capacity of 0.897 J-g 15.0 °C and a constant ...

A: Given,  A 19.0 g sample of aluminum, which has a specific heat capacity of 0.897 J/g°C, is dropped i...

Q: Etz0 CH;Br 1 mol Br2 -CH2 1 HC + 3.

A: The Gilmann reagent i.e. RLi is used here.  The Gilmann reagent attacks on the electrophilic carbon ...

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 191.0 g sample ...

A: Thermochemistry is branch of chemistry in which we deal with amount of heat evolved or absorbed by t...

Q: 1. This titration curve could represent 20 ml of 0.1 M with 0.1 M NaOH. The buffer region(s) is/are ...

A: We are given the titration curve for the titration of an acid with strong base, NaOH. 

Q: 7. C,H16 + 02 -- CO2 + H20 8. H2SICI, + H20 --→ H&S¡404 + HCI

A: Balanced the chemical equation--

Q: 1. Fill in the missing names or structures in the table below: Name Condensed or Skeletal Formula 3-...

A: The correct answer is given below

Q: Consider the following reaction between nitrogen dioxide gas and carbon monoxide gas NO2 (g) + CO (g...

A: Rate law expression gives the order of the reaction in which the rate of reaction is proportional to...

Q: . (a) In a solution calorimeter, what are the signs of AT and AH for an exothermic reaction? sign of...

A: The energy difference between the products and reactants is known as the energy change of a reaction...

Q: 10.0 mol CsH20, (glucose) is combusted to carbon dioxide and water at 25C according to the equation:...

A:

Q: Suppose 17.0g of potassium bromide is dissolved in 200.mL of a 0.50 M aqueous solution of silver nit...

A: First we would write a balanced chemical reaction between potassium Bromide and silver nitrate using...

Q: At 25oC, the cell Pt, H2(1atm)| HCl (aq) |AgCl, Ag has an emf of 0.332 at 25oC. What is the pH of th...

A:

Q: 1. What will the color of the extract solution be if the pOH=2? 2. What is the [H30+] for a solution...

A:

Q: Problem 24.25 Draw the products when each pair of compounds is treated with "OH, H,O in a Robinson a...

A:

Q: 1. 2-pentyl 1-propyl ether 2. 1-(2-propoxy)cyclopentene 3. diethyl ether

A: Given- 1->2-pentyl-1-propyl ether 2-1-(2-propoxy)cyclopentane 3-diethyl ether  

Q: e energy change w

A:

Q: For the compounds provided above, please: A) Predict the product (or products) of each reaction B) W...

A:

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.