what state of matter is CH3CO2-? It's an ion, do ions have a physical state?

Q: Classify the following as physical or chemical change: When a solution of concentrated HCl(aq) is…

A: For question 3, we have to find the whether the addition of concentrated HCl(aq) to water is a…

Q: A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water with…

A: The amount of energy absorbed by 16 oz. of water is 33 kcal. The amount of hot water mixed with 1.5…

Q: 4. How sizing down to Nano affect material properties?

A: Since  substances at the nanoscale level have a greater surface-to-volume ratio, which causes them…

Q: a) Given the data table: AH°† (kJ / mol) S°m (J / K mol) 5.7 C(s, graphite) CS2(g) S(g) 115.3 237.8…

A:

Q: (CH3)CO а. DBU b. "OH d. Br OH

A: (a)  (b)

Q: The defining features of the states of matter .

A: States of matter are the distinct forms of any particular matter that can exist.  Any substance…

Q: following reactions as homogeneous or heterogene

A: Homogenous reactions include the reactants and products in the same phase. Heterogeneous reactions…

Q: define mixture and distinguish between mixtures andcompounds;

A: A mixture is a combination of two or more substances that can be mixed together in any proportion.…

Q: 8. If matter is uniform throughout and cannot be separated into other substances by physical…

A: Matter is divided into two categories. 1. Homogenous  - The matter is uniform throughout  2.…

Q: b,PO, wi (aq) (s) (g)

A: Given compound is Rb3PO4 . Chemical name of  Rb3PO4  is Trirubidium phosphate .

Q: Name and define the common states of matter

A: Matter: Any substance in universe that has mass and occupies some space is termed as matter.

Q: Classify the following changes of substances as PHYSICAL or CHEMICAL: 12(s)+ sodium bisulfate - 2Nal…

A:

Q: The temperature of a liquid is 15oC.  What is this in K?

A: Celcius is one of the units of temperature.  The SI unit of temperture if Kelvin.

Q: Determine the mass of the water in the sample based on the following data to two decimal places…

A: Determine the mass of water sample in the sample --

Q: 6. How can you use 7. Complete the chart below, cut it out and staple it into your journal.…

A:

Q: A combination of at least two materials, one of which is a metal whose properties are different from…

A: Alloy is the combination of  two metals or a metal and  non metals to form a new product with…

Q: 4. How do you distinguish а. physicar pr b. VIStm TסGUIוטווד tralion С. Suruto d. Mixture from a…

A:

Q: How much heat, in Joules, is absorbed by 60 g of water in order to increase in temperature from 23°C…

A: Interpretation: The amount of heat, in joules absorbed by 60 g of water in order to increase in…

Q: A chemical reaction takes place to allow instant cold packs to absorb energy. This is an example of…

A: Reactions that absorb heat from the environment are called endothermic reactions. A common example…

Q: We use the density of water to calculate the mass of water from its volume. The density of water at…

A: Given, density of water =0.998 gmLvolume of water in calorimeter filled =104.6 mLwe are asked to…

Q: what are the different levels of strucure of a material

A:

Q: 1. (CH3);CCI, AICI, 2. CH;CI, AICI; 3. KMNO4, NaOH, heat 4. H, O+

A: Solution: Friedel Craft alkylation reaction: When alkyl halide treated with aromatic compounds (…

Q: Digesting food is an example of what? A chemical change A physical change

A: Physical change :-  In this chemical composition of the substance does not change. Involve change in…

Q: Part F In volcano vents, sulfur is converted directly from the emitted hot gases to form mounds of…

A: Deposition involves the conversion of gases directly into solids without passing through the liquid…

Q: Describe the law of conservation of energy?

A: According to Law of conservation of energy, energy of a system is always conserved.

Q: Classify the following changes of substances as PHYSICAL or CHEMICAL: 12(s)+ sodium bisulfate 2Nal…

A: Physical change is reversible and do not produce new substance , it only change appearance of…

Q: A match is lit and held under a cold piece of metal. The followingobservations are made: (a) The…

A: Physical changes are those in which change is physical appearance takes place like smell, heat etc.…

Q: A) H.PO. B) H:PO. С) НРО D) H:CO H:PO, +H HPO. +H* PO + H* HCO + H

A: We wil identify intracellular buffer

Q: Energy that is associated with the position or composition of an object is called O thermal energy.…

A: An object can posses many types of energy depending on its chemical behavior, motion, position,…

Q: Which of the following needs greater quantity of heat for 1 kg of water? a. freezing it b. Freezing…

A:

Q: The energy available from the world’s total petroleum reserveis estimated at 2.0 3 1022 J. Convert…

A: The energy available from the world’s total petroleum reserve is estimated at 2.0 X 1022 J. Convert…

Q: What is a chemical property of a matter

A: A Matter is anything that occupy space ( volume) and gas a mass and it may be sensible by our one or…

Q: substance reacts violently with water. The substance melts at 73.59 oC. The substance was named…

A: 1. Physical properties are used to observe and describe matter. Physical properties include:…

Q: 4. The school districts throughout ND are paid foundation aid by the State for you to go to school.…

A: The amount paid per year = $ 10,036 / year.

Q: A Solution is formed when two or more substances combine to yield a mixture that is homogeneous at…

A: Solution : It is the homogeneous mixture of two or more species together, it generally consists of…

Q: which seperation method is better suited for seperation of  solution of sugar and water into pure…

A:

Q: monphere oreducts ons chemical weathering rock Which of these is a property of water that allows it…

A: Water transport many materials through rivers , seas , canals etc.

Q: classify the following mixtures as homogeneous or hetermgeneous? your sock drawer?

A: Homogenous mixtures have same composition throughout a substance.  It is indistinguishable by…

Q: Determine whether the following statements describechemical or physical properties: (a) Oxygen…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: How many joules of heat are required to change 563 grams of solid ice with a temperature of 260…

A:

Q: 1. Heat is best defined as massless substance emitted when something burns. a form of potential…

A: Heat is the form of energy that is transferred between two substances at different temperatures.The…

Q: Classify the following as a physical property or a chemical property. (a) Copper metal has a…

A: Whether the given property of copper is physical or a chemical has to be stated.

Q: Which of the following is an intensive property? Select one: O a. heat content O b. amount O c…

A: We are having the heat content, amount, volume, mass, and temperature. We have to predict which  one…

Q: Which one of the following is not a chemical change ?     A. Burning of coal in airB. Fermentation…

A: A chemical change is a change of one substance to another one or more substance via a chemical…

Q: If the temperature of a sample of water requires 3.2 kJ of heat to raise the temperature from 26.1°C…

A: q = mc∆T  q is the amount of heat energy absorbed m is the mass of substance  c is the specific heat…