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Nimfa-mama [501]
3 years ago
14

HELP NOW PLEASE NO LINKS HELP ASAP RIGHT NOW.

Chemistry
1 answer:
dalvyx [7]3 years ago
6 0
7.) Yes, both are insects.

8.) Homologous since the organisms are closely related

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What type of bonding occurs in a sample of pure barium, Ba? In other words, how is one barium atom held to another barium atom?
Irina-Kira [14]

Answer:metallic bond

Explanation:

The metallic bond consists of a layer of valence electrons electrostatically attracted to positive metal ions. Hence in a metal such as barium, electrons bind the metal ions together in the metallic crystal lattice of the element.

6 0
3 years ago
Which of these elements is the most electronegative? <br> A. Sr<br> B. Na<br> C. Li<br> D. Ba
hoa [83]

Answer:

A. SR

Explanation:

SR is strongtium and is an electronegative element:))

hope this helps:))

6 0
3 years ago
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Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactio
Elan Coil [88]
I believe the end result is still 83 moles since there is never an amount of sulfur atoms added to the initial amount, but rather oxygen and water is repeatedly added to it. To find it's weight, first find the molar mass of H2SO4:

H2 + S + O4 = 2.00 + 32.1 + 64.0 = 98.1 g/mol

and mass = (98.1 g/mol)(83 mol) = 8142.3 g

rounded to 8.1 x 10^3 g assuming 100% yield?
8 0
3 years ago
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From what material does an extrusive rock form​
Tom [10]
Lava I think try that hope it helps :)
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Lena [83]

Answer:

0.2756 L

Explanation:

0.2756 L

3 0
3 years ago
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