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rewona [7]
3 years ago
8

Not able to be separated by physical means but is chemical what is it

Chemistry
1 answer:
Ray Of Light [21]3 years ago
8 0
My science text book said that it was either diamond or gold.  Gold may not be right, but I am pretty sure diamond is.

Sorry if I got this wrong.
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How does organic matter help soil?
sergeinik [125]

Answer:

C

Explanation:

the rain does help the soli it can make bacteria

7 0
2 years ago
Read 2 more answers
The rate of disappearance of hbr in the gas phase reaction 2hbr(g)?h2(g)+br2(g) is 0.160 m s-1 at 150°c. the rate of appearance
luda_lava [24]
The reaction rates of the substances whether disappearance of a reactant or the appearance of a product are related to each other by the chemical reaction. The reaction rates are related as follows:

rate = rHBr / 2 = rBr2 = rH2

rH2 = 0.160 / 2 = 0.08 M/s
8 0
3 years ago
A student performing this experiment weights out 0.6680 grams of an antacid tablet. It is was determined that this tablet contai
Rufina [12.5K]

Answer:

63 wt%

Explanation:

0.4210/0.6680

3 0
3 years ago
Whether or not the process is observed in nature, which of the following could account for the transformation of gallium-67 to z
Sonja [21]

Answer:

Option a: positron emission.

Explanation:

In the transformation we have:

⁶⁷Ga  →  ⁶⁷Zn  

The reaction is:

^{67}_{Z}X \rightarrow ^{67}_{Z -1}Y

For Ga to become Zn, the atom nucleus has to lose a proton, so in the given options, the reaction that involves the transformation of a proton is the option a, positron emission.

In a positron emission, a proton becomes into a neutron and a positron:

^{A}_{Z}X \rightarrow ^{A}_{Z-1}Y + ^{0}_{+1}e

Therefore, the correct answer is option a: positron emission.

I hope it helps you!

7 0
3 years ago
In Experiment #6 you learned that Zn will dissolve in acidic aqueous solutions as Zn2+, but Cu will not dissolve because Cu is l
Gala2k [10]

Answer:family fdhdfgfdsh

8 0
3 years ago
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