In the combustion of heptane, how many liters of carbon dioxide at STP are produced from the complete combustion of 2.00 moles of heptane? (Hint: you need a balanced chemical equation.)

Q: The shorter distance that the solvent travels on the TLC plate results in a better separation of…

A: Thin layer chromatography (TLC) is a chromatographic method used to isolate the parts of a blend…

Q: In a warm environment, which restorative wax is recommended for surface restoration? a. opaque b.…

A: In a warm environment, which restorative wax is recommended for surface restoration?

Q: cific method for t

A: The process of printing technique where mesh used to transfer dye into substrate called screen or…

Q: write an essay explaining bonding in water cohesion.

A: Cohesion means how much molecules like to stick to itself. For water molecule there operate very…

Q: When using the centrifuge, what safety precautions should be followed?

A:

Q: What is the best technique for pushing down on the plunger to carefully form a drop? Select the most…

A: To decribe the best technique for pushing down the plunger to carefully form a drop.

Q: NaOBut CH,NO2

A: nucleophilic addition of carbanion to α,β-unsaturated carbonyl compound (MICHAEL REACTION)  example…

Q: Fill in the blanks: Silica ____ has a larger surface area than particle type ___

A:

Q: Lab Safety When heating a test tube, O Always point the test tube away from you and others O Always…

A:

Q: The process of applying a mixture of compounds to the top of a column of a stationary phase O…

A: column chromatography is used to separate the chemical compounds based on their polarity.

Q: Which of the following are favorable characteristics of an extraction solvent?  Circle all that…

A: We have been given five characteristics of an extraction solvent. We have been asked to choose the…

Q: what else can you use to bend a stream of electrons?

A: The stream of electrons can be bent by different methods. One of the methods is static electricity.…

Q: Energy requirements to convert an ice cube at -10.0 °C to liquid water at +10.0 °C Energy required…

A: A question based on chemical thermodynamics. Using the given graph the most appropriate option from…

Q: The initial volume of the air is 3.05 L with a temperature of 22 °C and a pressure of 1.03 atm…

A: ideal gas when put in the condition of pressure, temperature then it follows, the equation PV = nRT…

Q: Having too much sample can cause an inaccurate melting point under these Sir how will the observed…

A: If heating occurs too quickly, the material cannot reach thermal equilibrium. Pure substances melt…

Q: Adhesive forces occur between different molecules.

A: Adhesive forces is defined as the attraction between the two different substances like glass and…

Q: Identify the type of Non-Newtonian fluid for each household product: Tomato sauce A.…

A: Tomato sauce is a shear thinning fluid. Honey is a Thixotropic. Glue and flour is shear thickening.

Q: Fill in the following blanks that describe using sodium sulfate for a drying agent: Sodium sulfate…

A: Sodium sulphate like drying agent are used to remove water. They can absorb water from organic…

Q: Question 29) is the attached correct?

A: TLC is the method to differentiate components in a compound.

Q: Which glass can cut off ultraviolet rays?

A: Glass is an amorphous solid. It is transparent in nature. There are many types of glasses and have…

Q: sphate crystals

A: A) Firstly calculate the mmoles of the HNO33 in the Solution.  mmoles of the HNO3 = Molarity •…

Q: The styrafoam cup acts a  ___________________ in the enthalpy of formation reaction. And is an…

A:

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.