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nalin [4]
3 years ago
8

The group that shows the effect of the variable being tested is called the

Chemistry
2 answers:
zavuch27 [327]3 years ago
8 0
The groups are called experimental groups
Svetradugi [14.3K]3 years ago
4 0
Experimental Group if I'm correct.
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What is the bonding requirement for carbon atoms?
Artyom0805 [142]

Answer:

carbon atoms tend to make four bonds, each carbon atom will have the number of hydrogen atoms that are required for four bonds. This compound contains 16 hydrogen atoms for a molecular formula of C 8 H 16.

Explanation:

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Describe the Earth's layers in relation to density
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<span>Our Earth is structured around the densities of the materials which make it up.One property of density is that it determines the way materials in a mixture are sorted. This property of matter results in the layering and structure of Earth's atmosphere, water, crust, and interior.</span>
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How many grams are in 0.5 moles C6H12O6?<br><br><br><br> Show work please!
Nitella [24]
Molar mass of C6H12O6 = 6x12 + 12x1 + 6x16 = 180g

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3 years ago
1. Air contains mostly nitrogen (78%) and oxygen (21%). It also contains other gases, including carbon dioxide and helium, and v
timama [110]

 

Air is a mixture of gases (and some dust) because the gases (oxygen, nitrogen, carbon dioxide, etc.) do not combine chemically into other compounds. Just like a mixture of salt & pepper doesn't combine into some other thing.  

The mixture is homogenous if it consists only of gases. If dust is mixed in the mixture is heterogeneous (dust is solid matter, gas is gas) A heterogenous mixture is one of different types of matter.  

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5 0
3 years ago
Read 2 more answers
The table shows the recipe and the available ingredients for making the maximum possible number of sandwiches.
Serhud [2]

Answer:

B. 4 ham slices

Explanation:

A chemical reaction involves one or more substances known as reactants combining chemically to give one or more substances known as products.

Reactants in chemical reactions combine in definite mole or mass ratios to give products. Therefore, when one substance is present in excess of what is required to combine with another to form products, that substance is known as the excess reagent. The other substance which is present in a smaller amount and which when used up, the reaction stops is known as the limiting reagent.

From the illustration of the sandwiches in the question, the recipe for one sandwich represents the chemical equation of a reaction. The equation form is given below:

2 cheese slices + 1 ham slice + 2 bread slices ---> 1 sandwich

The ratio of the reactant is 2 : 1 : 2

From the available ingredients, 12 cheese slices, 10 ham slices, 12 bread slices.

12 cheese slices will require 6 ham slices and 12 bread slices to produce 6 sandwiches.

However, since there are 10 ham slices, 4 ham slices will be left over unused. This is the excess or leftover reactant.

8 0
3 years ago
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