CHEMISTRY MIDDLE SCHOOL

Which state of matter has a defined volume but undefined shapeliquids
gasses
solids and liquids
liquids and gasses

Answers

Answer 1
Answer:

Answer:

  • Liquid has a defined volume but undefined shape

Explanation:

Solid has specific shape and volume

Liquid has specific volume but no specific shape

Gases have no specific volume and no specific shape

So correct answer is liquid.
Answer 2
Answer:

Answer: The Answer is A

Explanation: Liquids has volume but only in a container or something that can take up space.

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What findings led Thomson to infer that particles that are smaller than atoms do exist?

Answers

That electrons are small enough to fit in side a atom . (:

Chao is thinking about doing a project on plate tectonics for the school science fair. Which design would best relate to how the movement in the Earth’s mantle is related to plate motion?a pot of boiling water to which Chao will add food coloring to show the movement of the water
a flat shallow pan filled with a thick liquid heated by a hot plate with thick wooden blocks on top of the liquid
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a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid

Answers

The correct answer is option D) a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid.

I just did the quiz and got it right!

Hope this helps and have a gr8 day buddies <3

Answer:

d

Explanation:

A student weighed out a 2.055 g sample of a cobalt chloride hydrate, ConClmpH2O, where n, m, and p are integer values to be determined. The student heated the sample to drive off the waters of hydration, reweighed the anhydride sample and found 1.121 g anhydrate

Answers

The given mass of cobalt chloride hydrate = 2.055 g

A sample of cobalt chloride hydrate was heated to drive off waters of hydration and the anhydrate was weighed.

The mass of anhydrous cobalt chloride = 1.121 g anhydrate.

The mass of water lost during heating = 2.055 g - 1.121 g = 0.934 g

Converting mass of water of hydration present in the hydrate to moles using molar mass:

Mass of water = 0.934 g

Molar mass of water = 18.0 g/mol

Moles of water = 0.934 g * (1 molH_(2)O )/(18 g H_(2)O ) =0.0519 mol H_(2)O

Plants don't move around, so why do they need energy?

Answers

Every organism needs the energy to carry out a number of different processes, such as growth and reproduction. The energy is necessary for different metabolic processes and reactions inside the cells. Plants do not move around, so they don't need energy for movement, but they need the energy to develop, to grow, to produce food, to reproduce, and many other processes.

Plants need energy for Reproduction, Photosynthesis, Growth, and Development amongst others.

Required Energy in Plants

To produce their own food energy, which is referred to as "photosynthesis," plants need water and sunlight. They need energy because they are living things.

Photosynthesis is the process by which plants turn solar energy into sugar. Light energy is utilized by photosynthesis to transform carbon dioxide and water.

Numerous biological functions, such as growth and reproduction, require energy. Therefore, energy is absolutely essential.

Learn more about Energy in Plants here:

brainly.com/question/26568636

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I don't get itIs a flubber solid or liquid?
If you do not know flubber you can search it

Homework science chemistry

Answers

flubber is a liquid.

1. A scientific hypothesis can become a theory if ______.A) the entire community accepts it
B) the hypothesis is tested extensively and competing hypothesis are eliminated
C) there are no other competing hypothesis
D) the hypothesis can be tested at least once
2) A preliminary untested explanation that tries to explain how or why things happen in the manner observed is a scientific ________.
A) law
B) theory
C) fact
D) hypothesis

Answers

1. A scientific hypothesis can become a theory if the hypothesis is tested extensively and competing hypothesis are eliminated. A scientific hypothesis is a proposed explanation made on the basis of reasoning without any assumption. For hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.

  2. A preliminary untested explanation that tries to explain how or why thing happen in the manner observed is a scientific hypothesis. A primary trait of a hypothesis is that something can be tested and that those tests can be replicated. A hypothesis is often examined by multiples scientists to ensure the integrity and veracity of the experiment. The process can take years, and in many cases hypothesis do not go any further in the scientific method as it is difficult to gather sufficient supporting evidence.
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