How many neutrons are in the nucleus of an atom with an atomic number of 25? (use Periodic Table for mass)

Q: What are the applications of polymers in real life?

A:

Q: 1. Broken glassware can be disposed of into the general waste trash bin. II. General waste includes…

A: The main purpose of management of waste is to reduce pollution of environment. Wsste is also managed…

Q: Define and explain London dispersion forces

A: EXPLANATION: London Dispersion forces: London forces also callled as dispersion forces. London…

Q: Explain the main properties of polymers that make them desirable  for many applications

A: Polymers are macromolecules formed by the covalent bonding of monomer units. Polymers are very…

Q: What is synthetic chemistry?

A: Chemistry is mainly divided into three branches: physical chemistry, organic chemistry, and…

Q: one: ethyl peroxide. . dimethyl ether. diethyl ether. methyl ethyl ether.

A: The above formula has ether functional group  So, name is diethyl ether  (C) is correct option.

Q: Scientists noticed that the ozone layer was thinning.What was occurring at the same time?

A: Scientists noticed that the ozone layer was thinning and what happens on  at the same time has to be…

Q: What is the energy in Joules of one mole of photons of visible light having a wavelength of 6.31 x…

A: The energy of electromagnetic radiation is quantized. The smallest unit of energy of the radiation…

Q: 5. HITACHẾ H£=AF 0 H₂ 2dtm 25%℃ #2 boa /30°c

A: We know H2 generally reduces double bond but with increase in reactivity i.e at high temperature and…

Q: A distillation model containing a certain percentage of water was taken from the model 25 ml and the…

A: Given data, Amount of total sample = 25mL Amount of water discarded = 2mL

Q: a) Explain what catalytic cracking and catalytic reforming are and how they work in oil refineries.…

A: Question 1: Answer: Catalytic cracking:          Catalytic cracking is now one of the most important…

Q: what are the research gaps in carbon trading?

A: Answer - Carbon trading - Carbon trading is the process of buying and selling permits and credits…

Q: Et HO. OH Et Et Et H*

A: This is an acid catalysed rearrangement reaction

Q: CH₂1₂ Zn(Cu) diethyl ether

A: When an alkene reacts with CH2I2 in the presence of Zinc a cyclopropane derivative is formed. This…

Q: The plot below from your book does NOT have data for ammonia. 1.0 72.00 7-1.50 0.8 71.20 0.6 z.…

A: According to the law of corresponding states, At same reduced temperature and reduced pressure, all…

Q: 3. What are volatile chemicals? A. Chemicals that exist as gases at ambient conditions (room…

A:

Q: What are Polymers?

A: Polymers can be defined as the high molecular mass i.e 103 to 107u substance which is consist of a…

Q: Describe the role played by the electron gun and the electric field in the mass spectrometer.  State…

A: Mass spectrometry It is the instrumental method for the analysis of a compound's molecular weight.…

Q: Everything in the world is made of matter. Matter is anything that takes up space, including us! The…

A: Matter is anything that takes shape on earth and has a definite mass.  e.g: House, chair, oil,…

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: Which practice is NOT used to gauge accuracy? raw data and results from calibration checks B.…

A: Correct option is (e) sample rejection .

Q: Life-cycle assessment (LCA) is defined as the study of resource consumption, emissions, and their…

A: Now LCA is basically concerned with the effects on the environment and the energies released or…

Q: A functional group is a specific cluster of atoms that is a part of a larger organic molecule.…

A:

Q: What is the following and what are the organic molecules?         H         H H     C    C    C…

A: Given that,

Q: Which point is not related to transition metal= O They exhibit high melting and boiling points O…

A: Correct Option : They do not show variable valency

Q: CI Mg

A: Haloalkanes (R-Cl) react with Magnesium metal to form polar Grignard reagents (R-MgCl) which then…

Q: Differentiate thermoplastic and thermosetting polymers and explain the reason behind the difference…

A: Polymer is formed by addition of monomer units. There are two types of polymerization:  Addition…

Q: k=1.38x10^-23J/K, Avogadros number = 6.023×10*26, kT = 0.0259 eV (at T=300K) Determine the…

A: Given  Energy of state = E = Ef  + 0.04Temperature = 300 KProbabbility of state = To be determined…

Q: Distinguish between High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE) and Linear Low…

A: High density polyethylene:-  a) high density b) stronger intermolecular forces , stronger than low…

Q: Br Br2 НО .. DCM

A:

Q: + PdCl₂

A: A metal with vacant orbitals can readily accept electrons from a donor atom.The donor atom should…

Q: Define Nomenclature ?

A: The nomenclature is an important term for chemistry and is defined in the below step with a list of…

Q: Emissions product of gasoline fuel ................from the exhaust pipe are Co2, MP. Aldehydes,…

A: Burning of gasoline fuel.

Q: (5)¶ (6)¶

A: Addition of hydrogen and halogen to alkene is the Electrophilic addition reaction.

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.