CHEMISTRY HIGH SCHOOL

HELP......Percussion instruments are musical instruments that make noise when they are hit with an object. Which of these are percussion instruments? Check all that apply.a clarinet, which makes sound when air is blown into a woodwind mouthpiece

a drum, which makes sound when a mallet hits its surface

a cymbal, which makes sound when it is crashed against another cymbal

a trumpet, which makes sound when air is blown into a brass mouthpiece

a violin, which makes sound when a bow slides across strings

Answers

Answer 1
Answer:

The percussion instruments are a drum, which makes sound when a mallet hits its surface and a cymbal, which makes sound when it is crashed against another cymbal.

What are percussion instruments?

Percussion instruments generate sound when struck by an object. Among the options provided, the drum and the cymbal are indeed percussion instruments. A drum produces sound when a mallet or stick hits its surface, causing vibrations that create the characteristic drumming sound. Similarly, a cymbal produces sound when it is crashed against another cymbal or struck with a mallet.

So, the percussion instruments that fit the description of making sound when struck are the drum and the cymbal. These instruments belong to the percussion family, which is characterized by its reliance on impact to produce musical tones.

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Answer 2
Answer:

Answer:

I believe that the percussion instruments are the drum and cymbal.

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Within a single molecule of water, two hydrogen bonds are bonded to a single oxygen atom by_______.However when there are multiple water molecules, the partial negative charge at one end of a water molecule attracted to the partial ositive charge of another water molecule forms ____________.
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Is electronegativity the tendency to attract electrons?

Answers

Answer:

Electronegativity, symbol χ, is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (or electron density) towards itself. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus.

Explanation:

Answer:

Yes

Explanation:

The higher the electronegativity the higher tendency to attract electrons, the lower the electronegativity the higher tendency to give away electrons/lose electrons.

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.

Someone who wants to learn a skilled trade on the job should consider

Answers

Someone who wants to learn a skilled trade on the job should consider enrolling in a class for skills. In the present skill trade jobs are popular and many schools are offering the training of these skills like building, repairing and maintaining.

When three pairs of electrons are shared in a molecule, what shape will the molecule be?a. tetrahedral
b. trigonal planar
c. bent
d. linear

Answers

The correct answer is B. The shape of a molecule where three pairs of electrons are shared is a trigonal planar. This is characterized by one central atom and three atoms forming an equilateral triangle which is bonded to the central atom.

Answer:

Trigonal Planar is the correct answer.

Conditioning is the process ofa. discrimination.
b. spontaneous recovery.
c. learning associations.
d. observational learning.

Answers

Conditioning is the process of C. learning associations.

Two types of conditioning.
1) Classical conditioning
2) Operant conditioning.

Classical conditioning happens when an individual learns to associate two stimuli. This happens when an association is learned between an unconditioned stimulus and a conditioned stimulus.

Operant conditioning happens when an individual associates a behaviour with a consequence. For example, when a behaviour produces a good consequence; the individual is conditioned to repeat the behaviour to garner the same good consequence, and vice versa.

Final answer:

Conditioning is the process of learning associations between events that occur in a being's environment. It can be split into Classical and Operant conditioning, with the former dealing with learning associations between two stimuli that co-occur and the latter with learning associations between a behavior and its consequence.

Explanation:

Conditioning is the process of learning associations between events that occur in an organism's environment. This can be further divided into two main types: Classical (or Pavlovian) conditioning and Operant (or Instrumental) conditioning. Classical conditioning involves learning associations between two stimuli that co-occur, while Operant conditioning is learning associations between a behavior and its consequences.

For example, if a student studies hard (behavior) and then gets good grades (consequence), this could reinforce the student's study habits through operant conditioning. The more this association is reinforced, the stronger the learning becomes. So, the correct answer to the question is c. learning associations.

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Mr. Fuller assigned his science class a lab comparing the masses of objects to the nearest gram using a balance. The mass of a paper clip is about 1 gram. How many paper clips will it take to balance the scale, if it is determined that a 1 centimeter cube of gold has the mass of 19.3 grams?

Answers

Like about 15 paper clips to balance the scale

Answer:

C)  19

Explanation:

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