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Elina [12.6K]
4 years ago
13

Which compound has the lowest melting point? • CuO • C6H12O6 K2Cr2O7 • BaCl2

Chemistry
1 answer:
ss7ja [257]4 years ago
8 0
CuO is the best answer
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What type of bond will two carbon atoms form?
Cerrena [4.2K]

Answer:

Nonpolar covalent  bond

Explanation:

when carbon atoms bonds to its self it form a nonpolar covalent bond

6 0
4 years ago
Definition of steepest
andrey2020 [161]
<span>Hi, friend.
Steepest - Being steep to the greatest degree.
Steep - S</span>harply angled.
Example: When hiking trails lead straight up mountainsides, they've got a steep incline.
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5 0
3 years ago
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A compound made of elements A and B, has a cubic unit cell. There is an A atom at each corner of the cube and an A atom at the c
Lorico [155]

Answer:

A₅B₄

Explanation:

Since we have one atom of element A at the center of each face of the unit cell, since the unit cell is a cubic cell, we have 6 faces. Since the atom on the face of the unit cell is shared with another cell, we have half of it in the unit cell is shared So, the number of atoms per face is 1/2 atom/face × 6 faces = 4 atoms on the faces of the unit cell.

Also, we have 1 atom at each corner of the cubic unit cell. Since there are 8 corner in the cubic unit cell. Also, each atom at the corner is shared with 8 unit cells, so we have 1/8 atom per corner. So, the number of atoms per unit cell is 1/8 atom/corner × 8 corners = 1 atoms at the corners of the unit cell.

So, in total we have 4 + 1 = 5 atoms of element A in the unit cell.

Also, there are 4 atoms of element B in the unit cell.

So, the ratio of atoms of element A to element B is 5 : 4.

A:B = 5:4

So, the empirical formula of the compound containing elements A and B is A₅B₄

5 0
3 years ago
The number of moles of<br> 480 dm3 of He
Mumz [18]

Answer:

286

Explanation:

see ur periodic table

7 0
3 years ago
I need help with this one please it’s science
Taya2010 [7]

Answer: A change in appearance. (Please say thanks!)

Explanation:

The biggest sign of a chemical change is change in appearance.

5 0
4 years ago
Read 2 more answers
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