What is the difference between metals, nonmetals and metalloids?

1 answer:

3 0

Metals are solids, non metals are gasses and metalloids are in between metals and non metals. Also, metals have there atoms all close and packed, non metals have there atoms far apart, and metalloids have there atoms either close or far apart. Metals are separated form the non metals in the periodic table.

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A 20.00 ml sample of a solution of sr(oh)2 is titrated to the equivalence point with 40.03 ml of 0.1159 n hcl. what is the molar

goblinko [34]

The molarity of Sr(OH)2 solution is = 0.1159 M

calculation
write the equation for reaction
that is, Sr(OH)2 +2HCl→ SrCl2 + 2 H2O

then finds the mole of HCl used

moles = molarity x volume
=40.03 x0.1159 = 4.639 moles

by use of mole ratio between Sr(OH)2 to HCL which is 1 :2 the moles of Sr(OH)2 is therefore = 4.639 x1/2 = 2.312 moles

molarity of Sr(OH)2 is = moles / volume

=2.312 /20 =0.1159 M

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3 years ago

C2h6 what is the name

My name is Ann [436]

Ethane
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8 0

3 years ago

6. What will happen to the gravitational force between stars as the universe continues to expand?

Julli [10]

<h2>Nothing will happen to them</h2>

please mark brainliest

8 0

2 years ago

Which response includes all the following that are properties of most metals, and no other properties?

oksian1 [2.3K]

Answer:

The correct options are: Z1) They tend to form cations, and Z4) They tend to form ionic compounds when they combine with the elements of Group VIIA.

Explanation:

The chemical elements that have a tendency of losing their valence electrons and are generally present on the left-side of the periodic table are known as metals.

The general characteristics of metals are malleability, ductility, lustre, high thermal and electrical conductivity.

The metals readily lose their valence electrons present in their valence electron shell to form positively charged ions called cations and thus have low ionization energy.

They also tend to form ionic compounds or salts with the reactive non-metals belonging to the Group VIIA of the periodic table.

Therefore, Z1 and Z4 are the properties of most metals.

4 0

3 years ago

b) Explain what happens when a drop of concentrated sugar solution is placed on a rheo leaf peel mounted on a glass slide. Name

user100 [1]

The rheo leaf peel will lose water by osmosis and become flaccid. If the rheo leaf was boiled, this would not happen.

<h3>What is osmosis?</h3>

Across living membranes, water moves from a region of high to a region of low water potential.

Concentrated sugar solutions have low water potential when compared to the cell sap of the cells of rheo leaf peel. Thus, water will move from the rheo leaf peel to the sugar solution.

This will result in the wilting of the leaf peel.

If the leaf peel is boiled, the membranes in the cells die and can no longer function as a selectively permeable interface.

More on osmosis can be found here: brainly.com/question/1799974

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6 0

2 years ago