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iren2701 [21]
3 years ago
8

What does changing densities cause to occur

Chemistry
1 answer:
Dafna1 [17]3 years ago
8 0

Answer:

Explanation:

Please Elaborate

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For which compound does 0.26 mole weigh 13g
nalin [4]
0,26mol  ------- 13g
1mol       -------  x

x = (13g*1mol) / 0,26mol =  50g

It could be Ti or V
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3 years ago
Question 3 (1 point)<br> What is the relationship between a chromosome and DNA?
creativ13 [48]

Answer:chromosome is made of DNA. DNA is double helix structure made of sugar, phosphorus and nitrogen bases.

Explanation:

3 0
3 years ago
Why is it Xe????????????????
Tamiku [17]

Answer:

Here's what I get.

Explanation:

Ba is element 56. Its electron configuration is

1s² 2s²2p⁶ 3s²3p⁶ 4s²3d¹⁰4p⁶ 5s²4d¹⁰5p⁶ 6s²

That's a lot of writing.

To lessen the work, chemists have developed the noble gas notation.

The core electrons of Ba (listed in boldface) have the same electron configuration as Xe, the noble gas found two atoms earlier in the Periodic Table.

Chemists replace the core electron configuration with the symbol of the corresponding noble gas.

The noble gas notation for Ba becomes

Ba: [Xe]6s².

5 0
3 years ago
7. What type of water pollution is produced from chemicals used to kill bugs and<br> weeds?
Serga [27]

Answer:

Groundwater pollution

Explanation:

Pesticides, when sprayed on crop plants, are able to flow below the surface of the ground, reaching water-bearing aquifers, thereby contaminating groundwater, making it unsuitable for both human and agricultural uses.

5 0
3 years ago
Which statement tells what happens during the rock cycle when rocks undergo great heat and pressure? A. Igneous rock is formed.
balu736 [363]
<span>B. Metamorphic rock is formed</span>
3 0
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