CHEMISTRY HIGH SCHOOL

A chemical with a bitter taste is most likely a(n) _____ a. salt.
b. solvent.
c. acid.
d. base.

Answers

Answer 1
Answer: (D)Base has a bitter taste

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What subatomic particle of the atom has no electric charge

Answers

Neutrons have no electrical charge.

Why would an electrician use parallel circuits to wire the lights in each room of a house instead of using a series circuit?A.
When electricians get their license, they are only licensed to install parallel circuits. Most electricians aren't certified to install series circuits.

B.
Parallel circuits prevent electrons from flowing if part of the circuit is broken and therefore prevent fires. Series circuits cause more fires because electrons still flow.

C.
Electrons continue to flow in a parallel circuit even if part of the circuit is broken. In a series circuit, a break such as a burned out lightbulb would cause the current to stop in the whole room.

D.
Parallel circuits are much easier to wire and are required by the electrical code for housing construction in most communities. Series circuits are sometimes used with special approval.

Answers

C: Electrons continue to flow in a parallel circuit even if part of the circuit is broken. In a series circuit, a break such as a burned out lightbulb would cause the current to stop in the whole room!

Of the elements Fe, Hg, U, Te, and Y, which is considered a Group A element?

Answers

Answer:

Te is considered a Group A element.

Explanation:

Fe, Hg and Y belong to Group B.

U is a transition element.

Te is the only element that belong to Group A.

I hope I've solved your doubt.

True or false? The radioactive wastes produced by nuclear fission remain dnagerous for dozens of years

Answers

True, this is why Chernobyl is still not to be lived in

Does Silicon form a cation or is it anion?

Answers

Silicon generally forms at least polar covalent bonds, like carbon, as befits its status as a Gropu 4A nonmetal. The only obvious exception I can think of is SiC, which despite the similarity you might expect to graphite or diamond does, I think, have significant ionic or metallic character to its bonding in the solid state.

Discuss the shapes of Nh3 and H2O on the basis of VESPER theory?​

Answers

Answer:

Ammonia has 4 regions of electron density around the central nitrogen atom (3 bonds and one lone pair). These are arranged in a tetrahedral shape. The resulting molecular shape is trigonal pyramidal with H-N-H angles of 106.7°.

Explanation:
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"Henry mixed salt and water together in a cup until he observed a clear solution. He measured the mass of the solution. Then he placed the cup outside for several sunny days during the summer. After a week, he observed that only solid salt remained in the cup and the mass had decreased. Henry concluded that a physical and chemical change occurred in this investigation."Which statements correctly defend or dispute his conclusion?A.)He is correct. Dissolving salt in water is a physical change, but evaporating the water is a chemical change. Formation of a solid is evidence that a chemical change occurred.B.)He is correct. Evaporation is a physical change, but dissolving salt in water is a chemical change. The change in mass is evidence that a chemical change occurred.C.)He is incorrect. Dissolving salt in water and evaporation of the water are both physical changes. The reappearance of salt is evidence that the change was reversible by a physical change, so it could not be a chemical change.D.)He is incorrect. Dissolving salt in water and evaporation of the water are both chemical changes. The reappearance of salt is evidence that the change was reversible by a chemical change, so it could not be a physical change.