Determine the relationship between the given structures.

Q: Hydrogen, the most abundant element in the universe, was primarily created by what astronomical…

A: The Big Bang theory is the prevailing cosmological model that explains the origins of the universe.…

Q: All of these are examples of physical properties except: A. Color Change B. Density C.…

A:

Q: How man

A: mole interms of particles :         1 mole = 6.022 x 1023 particles   mole interms of mass :…

Q: Standard deviation is an indication of the... a. precision of one measurement b. accuracy of one…

A: Standard deviation:a number which is used to inform how measurements for a group are spread out from…

Q: Match the image of the particles to the state of matter. :: Solid :: Liquid :: Gas

A: Molecules in solid state are very tightly packed , hence the space between the particles in solid…

Q: A metal alloy is at -250 oC . What is the temperature on the Kelvin scale? a.  -523 K         b.…

A: °C = degree Celsius K = Kelvin We know that ; 0°C = 273 K    °C = K - 273  °C + 273 = K By using…

Q: Could the nugget be made of gold? Match the words in the left column to the appropriate blanks in…

A: Since the nugget is basically a small chunk of gold and other precious metals.

Q: e-Laboratory Questions Define specific gravity. What units are used for specific gravity?

A: The specific gravity is define as the ratio between the density of an object, and a reference…

Q: Which of the following terms describes what a doctor forms when treating patients prior to ordering…

A: Experiment is the term required for the treatment of the patient by the doctor with the normal…

Q: Which of the following is an example of a chemical property? O A. Boiling of water O B. Sugar is…

A: Physical property - .No new products are formed, only the physical state of the substance…

Q: What is an element? A. Oxygen and nitrogen joined together. B. A piece of pure nickel C. A water…

A: The question is based on the concepts of general chemistry. it talks about elements which is purest…

Q: Part D RbF O Rb Rb Rb O Rb

A: A Lewis electron dot diagram (or electron dot diagram or a Lewis diagram or a Lewis structure) is a…

Q: What happens to the density of a marshmallow when you squeeze it?   a. Remains constant     b.…

A: The experimental description of gaseous behavior between volume-pressure is given by the "Boyle's…

Q: Match the correct word with the description. v Blood is an example of element. A. v Air is an…

A: Elements are those substances which contain the same atoms with same number of protons while…

Q: Match the correct prefix with the factor.

A:

Q: For question number 2 does that mean weigh the dish to 0.001g without clearing it ?

A: In step-1, after cleaning the evaporating dish properly, we have to heat to remove any impurities…

Q: Which statement is associated with random error?

A: Measured value is the value of a measurement obtained through an instrument or a device. The…

Q: experimental value is 523 accepted value is 500 how many sigfigs should percent error be

A: Given: The experimental value, E=523 The accepted value, T=500 Percentage error can be calculated as…

Q: 26. Give an example of when you might use decanting rather than filtration. Decanting is preferred…

A: Decanting and filtration are both methods used to separate mixtures. The choice between decanting…

Q: Select the Heterogeneous mixture from the list.a) A bar of Gold b) Cement with gravel c) Ammonia d)…

A: A homogeneous mixture has uniform composition throughout the mixture whereas the heterogeneous…

Q: Classify the following as a law, an experiment, or a theory. "Neon is an inert (or nonreactive) gas…

A: Concept: Law: A set of rules that are universally applicable. An Experiment: It is a scientific…

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.