CHEMISTRY MIDDLE SCHOOL

Which statement best describes the temperature of the oceans surface water

Answers

Answer 1
Answer: The temperature changes in the water and climate up willing all the fish to go away from the surface
Answer 2
Answer:

Answer:

Areas at high latitudes have the coldest water.

Explanation:

Surface water receives its heat from the sun.

I took the test and it was right 100% :)

Related Questions

Answers please, I will give brainliest
What is nitrogen state at 20 celcius
Similar organisms that are not related are an example of A.  Natural selection B. Convergent evolution  C. Divergent evolution  D. Common ancestor
Fill in the following information for the element *if your good at these pls go to my profile and answer more related questions.*
A construction company recently filled in a local pond to build new houses. Duringthe following weeks, a local scientist noticed a decline in the mosquito population inthe area. The scientist wants to conduct a study that will measure the change in thelocal mosquito population over a period of three months. Which research methodwould give the scientist the best data for conducting his study?A. a three-month case study observing the behavior of animals that depend onmosquitoes for foodB. a survey asking residents about their observations of the local mosquitopopulationC. a collection device in the area that counts the number of mosquitoes caughtweeklyD. a controlled lab experiment with mosquitoes that limits watercolor theexperimental group

What does sound travel through to reach our ears?

Answers

By a series of vibrations produced by an object. When an object produces sound, the sound waves travel and reach the ears. :)
sound travels through different mediums to reach our ears, depending on your position.
Sound can travel through water in the form of vibrations, and it can travel through the atmosphere, that is, the air, to reach our ears. It travels faster in gas(air).

If 35.8 grams of LiCl are dissolved in 184 grams of water, what is the concentration of the solution in percent by mass?

Answers

Mass of solute = 35 grams
Mass of solution = mass of nacl + mass of water = 35.8 + 184 = 219.8 grams


Concentration = mass of Nacl x 100/mass of solution.

= 35x100/219.8 = 15.92%.

Hope this helps you.

Why are some examples of a chemical reaction not actually foolproof evidence that of a chemical reaction?13, 8th grade, and I'm doing my science lab report: The lab was a chemistry lab. We got a bunch of toxic chemicals and put pairs of them together, recorded the reactions, and wrote balanced equations for each of them and identified what kind of reaction they were. The whole name of the lab is "Evidence of Chemical Reactions", and one of the first analysis questions is "write a paragraph about the kinds of changes you would expect to see if a chemical reaction occurs." I answered this with things like bubble formation, change of color, change of state of matter, etc. Then the next question said "any one of these signs is not always a fool proof indication that a chemical reaction is occurring. give two examples to support this statement." 
what are two examples to support the statement that the commonly known examples of chemical reactions occurring are not always foolproof evidence that chemical reactions are occurring?

Answers

So basically, the change in color effects the amount of cations in the solution making it a physical change rather than a chemical one, defying the law of conservation of mass! I hope this helped! (The only time the change in color affects the amount of cations is in the Alkaline Earth Metals)

source: college science teacher 

Bubble formation, change of color, and change of state are not foolproof evidence of a chemical reaction due to physical changes and variations in the reactions.

While bubble formation, change of color, and change of state of matter are commonly associated with chemical reactions, they are not always foolproof evidence. Two examples to support this statement are:

  1. Physical changes can mimic some of these signs. For example, the melting of ice is a change of state, but it is a physical change rather than a chemical reaction.
  2. Some chemical reactions may not produce the expected signs. For instance, some reactions may be slow or occur at very low concentrations, making it difficult to observe noticeable changes.

Therefore, it is important to consider multiple lines of evidence and conduct further analysis to confirm the occurrence of a chemical reaction.

Learn more about Evidence of a Chemical Reactions here:

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Which best explains why metal cooking utensils often have plastic coating on the handles

Answers

Metal solids contain a positively-charged cation surrounded by a "sea" of delocalised, negatively-charged electrons.

The electrons are able to move freely, and hence transfer kinetic energy throughout the implement at a much quicker rate than non-metals.

Plastic is made of non-metals (Mostly carbon and hydrogen) and therefore is a poor thermal conductor.

Therefore, by coating the metal utensil in plastic, the rate of heat energy transfer to the person in contact's hand is decreased.

Answer:

Plastic reduces the transfer of thermal energy to hands holding the utensils.

Explanation:

.When Mendeleyev published his periodic table, there were some spaces for undiscovered elements. FIgure 15-1 is a section of a similar table. A reasonable value for the atomic mass of the missing element is__.A. 101

B.72.3

C.68.2

D.34.8

Answers

It's B. 72.3
(if you go to Connections Academy.)

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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A bacterium is in a nasty environment. What sort of reproduction would it use in this situation? Why? How else would it protect itself? (hint: what were those special capsules called and why were they special?)
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Is the unlimited source of energy for all living things is the leaf. Is that true or false