CHEMISTRY MIDDLE SCHOOL

Why do we put these three words together in the 'fire triangle'?

Answers

Answer 1
Answer: the three word of this is to represent what it takes to create and maintain a fire

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Al2(SO4)3 + BaCl2 balanced equation
1.Heat Energy is also known as?2.Energy from the sun is?3.Three energy transformations in turning on a flashlight?4.Energy transformation in a car starting and moving?5.Three non-renewable energy source are? Three renewable energy sources are?6.Some physical properties of metals and non-metals are?7.What are the states of matter of the parts of the earth?8.What are the units of measurement in a metric system?9.Gravity is?10.A force is?11.How do mass and weight differ?12.What is the super continent called?13.Why does the sun exert the largest force of gravity?14.What is a comet?15.When you increase the distance from the sun what is the length of time it takes to orbit?16.What is the Cell Theory?17.What can form from divergent plates?18.What is the age of the sun?19.What are the elements that primarily compose of the sun?BTW: YOU DO NOT HAVE TO ANSWER ALL OF THE QUESTIONS IF YOU DON'T WANT TO!!!
what happens when a peppermint is put in these three things soda, vinegar, lemon juice, and milk plz help me i need this for my science project due in exactly 2 weeks!!!!!!
Calculate the mass in grams of 5.0 moles of Li
Which phrase BEST describes a scientific theory A. a statement of pure factB. a collection of data C. a general based on an observable fact D. an EdUcAtEd guess

Put the moon phases in order from first to last phase.A. B, C, A, D


B. A, B, C, D


C. D, B, C, A


D. A, C, B, D

Answers

the answer is a i did the test 
it is b or a check with someone else

How do vacuoles in the animal cell differ from those in the plant cell?

Answers

The main difference is that in a plant cell there is only one vacuole while in an an animal cell there are many.  but the size is drastically different also.  

Answer:

Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.

Explanation:

You've just solved a problem and the answer is the mass of an electron, me=9.11×10−31kilograms. How would you enter this number into the answer box?

Answers

That depends on how the program is designed. It could be something like 9.11*10^-31 kg

The accepted value for the percent by mass of water in a hydrate is 36.0%. In a laboratory activity, a student determined the percent by mass of water in the hydrate to be 37.8%. What is the percent error for the student's measured value?(1) 5.0% (3) 1.8%

(2) 4.8% (4) 0.05%

Answers

The original or accepted value for the percent by mass of water in a hydrate = 36%
Percen by mass of water in the hydrate determined by the student
in the laboratory = 37.8%
So the difference between the actual and the percent by mass in water determined by student = (37.8 - 36.0)%
             = 1.8%
So the percentage of error made by the student = (1.8/36) * 100 percent
                                                                             = (18/360) * 100 percent
                                                                             = ( 1/20) * 100 percent
                                                                              = 5 percent
So the student makes an error of 5%. Option "1" is the correct option.

Answer:

5%

Explanation:

Which do all groups of plants have these are the choices A.chloroplasts B.roots C.spores D.tubes

Answers

A.chloroplasts every plant needs it
Chloroplast, Needed to turn light into energy.

Why did the french became allies with the american? Answers:
To get revenge for recent French losses in North America

To gain territory in the west

To protect the iroquols from British attacks

Answers

Answer:

It’s to gain territory

Because they wanted more territory than what they already had.

Answer:

Answer:  To get revenge for recent French losses in North America.

Explanation:

The Seven Years War was fought in Europe from 1756-63.  That conflict as it extended to colonial territories in the New World was known as the French and Indian War.  Losing that conflict in North America to the British didn’t sit well with France. And so when the colonial Americans broke out in revolution against the British monarchy, France devoted enormous financial aid (as well as officer support) to the Americans. The cost to France for supporting America’s revolution added up to 1 billion livers  (about 4 billion in today’s dollars). This is part of what put France’s debt problem over the edge and led to the French Revolution.
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