On a hot summer day you and your friend decided to make a drink by mixing ice cubes water and sugar and koolaid mix . What was the type of change that occurred

Answers

Answer 1

Answer:

The type of change that has occurred on mixing ice cubes, water ,sugar, koolaid mix is a physical change.

What is a physical change?

Physical changes are defined as those changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to further simpler compounds.

Physical changes are always reversible by using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible changes and hence physical changes.

They involve only rearrangement of atoms and are often characterized to be changes which are reversible.

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Answer 2

Answer:

Answer:

thats when you mix so that's friction

Explanation:

1 lemonade+1 lemonade=2 lemonaede

and i hope the lemonade tast good! :D

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For the precipitation lab, what would be an appropriate use of a beaker?

Answers

For chemical changes like precipitation, appropriate use of a beaker is to provide space for the precipitate to form and for the color of the precipitate to be distinct.

Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.

There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

Thus, appropriate use of a beaker is to provide space for the precipitate to form and for the color of the precipitate to be distinct.

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How does the hydrogen atom produce light

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when energy is put into an atom, the electrons can use the energy to go to a higher energy state (n value) which is called an exited state. when the electron goes back down to where it started (called the ground state) it releases the energy it gained in the form of a photon which is why it produces light.
A common way to get hydrogen gas to produce light is by passing an electric current through the sample.

Which of the following popular sayings is an example of a true scientific theory?Eating lots of carrots will improve your eyesight.It is safe to eat dropped food if you adhere to the 5-second rule.Drinking warm milk makes you sleepy.Touching toads gives you warts.

Answers

The carrot myth was invented by the English Airforce to hide their radar system during WW(1 or 2, I'm not sure). Dropped food doesn't matter because dust and bacteria the food touches are on it the moment it hits the ground. Touching toads doesn't give warts, however the poison he secretes from its skin (a toad is poisonous, not venomous) can irritate. So it must the warm milk.

Answer:

Yes

Explanation:

Which layer spins creating Earth’s magnetic feild

Answers

The Outer Core

Explanation: Deep inside the planet, in a region known as the outer core, the magnetic field of the planet is created.

Starting with 100 grams of uranium-238, after one half life has gone by, how many grams of uranium-238 will remain?A._12.5 grams
B._25 grams
C._50 grams
D._100 grams

Answers

Answer : The correct option is, (C) 50 grams

Solution :

Formula used :

$a=(a_o)/(2^n)$

where,

a = amount of reactant left after n-half lives = ?

$a_o$ = Initial amount of the reactant = 100 g

n = number of half lives = 1

Putting values in above equation, we get:

$a=(100)/(2^1)$

$a=50g$

Therefore, the amount of uranium-238 remain will be, 50 g

Answer C, 50 grams.
This is because a half life is the time it takes for a sample of an unstable isotope to spontaneously so that half of the original sample remains

Subatomic particle that has mass nearly equal to that of a proton, but carries no electrical charge

Answers

The answer is the neutron. It is a subatomic particle with no net electric charge and its mass is approximately equal to the mass of a proton. Protons and neutrons constitute the nucleus of an atom and collectively they are called as nucleons.

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