Which of the following is NOT an evidence of star formation?

How is the energy of star produced?

When does a star become unstable?

Which is the second most abundant element in the universe?

Which of the following is the sign that a protostar will transform into the next stage?

What object is formed from gas and dust particles which are pulled together by gravity and no nuclear fusion has happened yet?

Which is a huge luminous ball of hot gas such as Hydrogen and Helium?

In main sequence star, Hydrogen fuses and converted to Helium. What element is produced from Helium gas at its core??

This is when C-12 fused with H to form N-13. Then the N-13 undergoes beta decay to form C-13 and the process will continue to capturing O-15 and the cycle begin. What do you call this process that takes place in a massive star?

Which process begins when two 4He nuclei fuse to form an unstable 8Be nucleus

Which process does an average star gets their energy and convert Hydrogen into Helium?

It was created by bombardment of molybdenum by deuterons (heavy hydrogen, H12), by Emilio Segre and Carlo Perrier in 1937. What element is this?

Which is known as the origin and production of heavy elements?

Who successfully carried out a nuclear transmutation reaction, a process of transforming one element or isotope into another element?

What device is used to speed up the protons to overcome the repulsion between the protons and the target atomic nuclei by using magnetic and electrical fields?

What is the positively charged particles that are located in the nucleus of an atom?

What particles that have no charge and are also located in the nucleus of an atom.

Which of the following are not one of the major components of the atom?

He noticed that shooting electrons at elements caused them to release x-rays at unique frequencies.  

A nonpolar covalent bond would form in which of the following pairs of atoms?

Which of the following is a  one-dimensional point which contains a huge mass in an infinitely small space?

What are the elements with atomic numbers beyond 103?

He synthesized element with atomic number 43 using a linear particle accelerator

Which is known as nuclear fusion and the formation of new nuclei actions in the early stages of development of the universe?

If a molecule has this symbol &-, it means_______.

If a molecule has value of 1.6 electronegativity difference, this molecule is best described as________.

If a molecule has this symbol  &+, it means_______.

Which of the following statements is INCORRECT?

Which of the following substances will dissolve most likely in water?

Which statement is true about the non-polar molecules?

What type of force exists between polar molecules?

Which of the following forces is the strongest?

Which of the following forces is not an intermolecular force?

Which organic molecule gives fast source of energy?

Which nutrient group is used in the composition of waxes and responsible for insulation of some organisms?

The excessive consumption of carbohydrates is converted into which polysaccharide that is stored in the liver and in muscles?

Which of the following is a monosaccharide which is used in dextrose?

What conditions must be met in order for a chemical reaction to occur?

Suppose you dissolve Zinc (Zn) in Hydrochloric acid (HCl) and add more acid than usual. Then drop pieces of Zinc. What factor does NOT affect the rate of the reaction?

Why does a candle burn more rapidly when placed in an open jar than in air? What accounts for this reaction?

What must happen before a chemical reaction can begin?

Which of the following will lower the rate of reaction?

How does a catalyst work in speeding up a reaction?

Which of the following is being described by this phrase, “It can be converted in form, but not created nor destroyed.”

What classification of  energy that comes from sources that will run out or will not be replenished in our lifetimes—or even in many, many lifetimes

Which of the following converts the kinetic energy of falling water into mechanical energy?

Which of the following is used to create methane and alcohol which are fuels useful in energy production and in powering automobiles?

What type of renewable energy utilizes moving water to turn turbines?

Wind turbines are installed in strategic locations to harness what type of energy from wind?

What kind of household cleaning product that is used for cleaning dishes, plastics, and many other surfaces?