1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bumek [7]
3 years ago
15

Which of the following is closest in meaning to the word “hypothesis”?

Chemistry
1 answer:
djyliett [7]3 years ago
4 0

Answer:

suggested explanation

Explanation:

a hypothesis is like a guess to a question. then you test the guess.

You might be interested in
6.0 L of gas in a piston at a pressure of 1.0 atm are compressed until the volume is 3.5 L. What is the new pressure inside the
Ne4ueva [31]

Answer:

<u>1.7 atm</u>

Explanation:

The formula you would want to use it P2=p1v1/v2

Plug in the numbers and solve

(1)(6)/3.5

Let me know if you need any other help!

7 0
3 years ago
Explain two advantages and disadvantages of using energy created by nuclear fission and nuclear fusion.
alisha [4.7K]
A. NUCLEAR FUSION  is the combination of two atomic nuclei in order to create an atom that in turn creates energy.

A.1 DISADVANTAGES

1. Expensive Construction Costs-
To be able to put up such powerhouse, it needs ostentatious financial support to create a facility and gather experts and scientists.

2. Energy Input vs Energy Output- 
To be able to fuse the two nuclei together, there is a great demand for high levels of heat. Thus to be able to produce large amount of energy, it also needs a large amount of thermal energy which is not reasonable enough.

A.2 ADVANTAGES

1. Barely Any Waste- 
the only by product of nuclear fusion is helium and it is non toxic. This does not cause any harm to the environment and to people.

2. Unlimited Fuel- 
All of the components needed to produce energy can be made. Deuterium, which is the main ingredient needed to supply a truly unlimited and sustainable energy supply, can be distilled from the sea water.


B. NUCLEAR FISSION- refers to the process of splitting of the nucleus of an atom into several smaller particles to produce free neutrons and lighter elements.

B.1 DISADVANTAGES

1. It can be dangerous for employees- 
Radiation which is one of the byproducts of nuclear fission can be harmful to the personnel working within its premises.

2. It has high initial expenses- 
Nuclear power plants needs a specialized equipment for it to become functional. 

B.2 ADVANTAGES


1. It helps minimize environmental pollution- 
Nuclear power plants can produce large amounts of energy while consuming relatively minimal amount of fossil fuel. To explain further, consumption and usage of fossil fuel poses adverse effect in the environment because it can emit carbon dioxide and other harmful chemicals.

2. It helps reduce global warming- If the world would opt for nuclear fission, then there would be less greenhouse gasses in the atmosphere. This in turn would mitigate global warming.
3 0
4 years ago
Tissues are grouped together to form varius what?
Kruka [31]

the process goes like this.

1.cells

2.tissues

3.organs

4.organ systems

5.organisms


tissues are grouped to form organs.


I hope this helps.

4 0
3 years ago
When the reaction A → B + C is studied, a plot 1/[A]t vs. time gives a straight line with a positive slope. What is the order of
zloy xaker [14]

Answer:

Second order

Explanation:

Given that:

When the reaction A → B + C is studied, a plot 1/[A]t vs. time gives a straight line with a positive slope.

From the integration method for the second order of reaction.

Suppose that:

rate = k₂[A]²

∴

\dfrac{1}{A}=\dfrac{1}{A_0}+k_2t

Therefore, a plot of the linear function \dfrac{1}{A} versus t will be linear with a positive slope k₂ and the intercept on the concentration axis will be \dfrac{1}{A_o}

The linear plot for a second order reaction can be seen in theimage attached below.

7 0
4 years ago
Sodium sulfide reacts with hydrochloric acid to produce hydrosulfuric acid and sodium chloride. (you need to write and balance t
VikaD [51]

Answer:

2.5 moles of NaCl

Explanation:

The balanced chemical reaction equation is shown in the image. Since it takes 2 moles of Hydrochloric acid to form two moles of sodium. Chloride, then 2.5 moles of hydrochloric acid should also form 2.5 moles of sodium chloride according to the balanced reaction equation.

4 0
3 years ago
Other questions:
  • As the pressure on a sample of gas increases, the volume of the sample _____.
    13·2 answers
  • Need a quick answer!!!
    7·1 answer
  • Determine the pressure change when a constant volume of gas at 1.00 atm is heated from 20C to 30C
    13·1 answer
  • What causes hail when it rains?
    13·1 answer
  • What mass of iron is needed to react with sulfur in order to produce 96 grams of
    12·2 answers
  • On a hot summer day in Florida, Sarah was having a picnic with her family. She took a glass, which had been sitting in the Sun,
    6·1 answer
  • Which part of the mantle is still a solid but flows thick , heavy liquid? A.asthensosphere B.crust C.core D.lithosphere
    14·2 answers
  • What is the molar mass of the anhydrous compound? Answer using four significant figures.
    10·2 answers
  • How many molecules are in a 6.82 gram sample of Hydrogen Sulfide (H2S)
    13·1 answer
  • What is the wavelength of light in nm with energy of 6.95 x 10^-27 J?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!