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FromTheMoon [43]
3 years ago
12

Significant figures ​

Chemistry
1 answer:
Gnom [1K]3 years ago
5 0
Answers:

A) 3 B) 1 C) 3
D) 2 F) 2 G) 3
H) 3 I) 3

Hope this helps!
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Cracking the periodic table code why aren't the elements listed in alphabetical order answer key
finlep [7]

The elements in the periodice table are not listed in alphabetical order, because the arragement in rows (periods) and columns (groups or familes), in increasing order of atomic number (number of protons of the atoms) permits to explain similarities among the elements, trend in some properties, and even predict properties of unknown elements.


For example, the elements of the first group (family), called alkaline metals, all have 1 valence electron, have similar physical properties (ductibility, malleability, luster, thermal and electricity conductivity), react in similar way with water, show a trend in the atomic radii and in the ionization energy.


You can tell similar stories for other groups like, alkalyne earth metals, halogens and noble gases.


You can also tell trends in electroneativities, and atomic radii, for a row of elements, as per the order they are in the row.


So, the current array resulted very helpul for chemists to explain and predict the behavior and properties of the elements.

4 0
3 years ago
Read 2 more answers
Helpppooo give answer thanks
DaniilM [7]

Answer:

625 mL

Explanation:

From the question given above, the following data were obtained:

Volume of stock solution (V₁) = 250 mL

Molarity of stock solution (M₁) = 5 M

Molarity of diluted solution (M₂) = 2 M

Volume of diluted solution (V₂) =?

The volume of the diluted solution can be obtained by using the dilution formula as illustrated below:

M₁V₁ = M₂V₂

5 × 250 = 2 × V₂

1250 = 2 × V₂

Divide both side by 2

V₂ = 1250 / 2

V₂ = 625 mL

Therefore, the volume of the diluted solution is 625 mL.

8 0
3 years ago
you have a 500g block of butter at home. You found out that its volume its 555l. What is the density of the butter?
Ivenika [448]
Density will be 0.9009 g/L
7 0
3 years ago
Combining hydrogen and oxygen to make water Group of answer choices releases a lot of energy. consumes a lot of energy. releases
Firdavs [7]

Answer:

Releases a lot of energy. When hydrogen a highly reactive element reacts with oxygen, it does so using immense force, when the bonds break high amounts of emery is released.

Explanation:

5 0
3 years ago
An atom with 38 protons and 48 neutrons is called_____?
rewona [7]

Answer:

It's not atom it is an element Strontium.

4 0
3 years ago
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