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dalvyx [7]
3 years ago
12

I’m really bad at science and i need to know how to define it

Chemistry
1 answer:
postnew [5]3 years ago
5 0
It is a column of elements in the periodic table of the chemical elements.
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Can someone pleas help
bekas [8.4K]

Answer:

Looks like a balloon to me

Explanation:

3 0
3 years ago
As the elements of group 16 (VIA) are considered from top to bottom on the Periodic Table, the atomic radii
mina [271]
For group 16 elements, the atomic radii increases  down the group as a shell of electron is added on each time.
4 0
3 years ago
Metamorphic rocks with a non-foliated texture show metamorphic change that involves ____.
matrenka [14]

Answer:

b.  growth in the size of the mineral grains

Explanation:

Non-foliated texture shown by a metamorphic change is depicted by growth in the size of the mineral grains.

  • Examples of non-foliated metamorphic rocks are quartzite and marble.
  • In these metamorphic rocks, mineral grains are not aligned with their long axis.
  • Non-foliated texture occurs under high temperature and low pressure conditions.
  • As minerals are able to grow, the size can be used to show a metamorphic change.
8 0
3 years ago
I need help! Thanks!
Tems11 [23]

Answer:

C. As speed increases, kinetic energy increase exponentially

Explanation:

As you can see on the graph, the further right we move on the x-axis, the higher the values on the y-axis. This means that as one value increases, the other value also increases. The only answer choice that says this is C.

Hope this helps :)

4 0
3 years ago
Read 2 more answers
A certain half-reaction has a standard reduction potential +0.80 V . An engineer proposes using this half-reaction at the anode
Strike441 [17]

Answer:

a. Minimum 1.70 V

b. There is no maximum.

Explanation:

We can solve this question by remembering that the cell potential is given by the formula

ε⁰ cell = ε⁰ reduction -  ε⁰  oxidation

Now the problem states the cell must provide at least 0.9 V and that the reduction potential of the  oxidized species  0.80 V, thus

ε⁰ reduction -  ε⁰  oxidation ≥  ε⁰ cell

Since ε⁰  oxidation is by definition the negative of ε⁰ reduction , we have

ε⁰ reduction - ( 0.80 V )  ≥  0.90 V

⇒ ε⁰ reduction  ≥ 1.70 V

Therefore,

(a) The minimum standard reduction potential is 1.70 V

(b) There is no maximum standard reduction potential since it is stated in the question that we want to have a cell that provides at leat 0.9 V

8 0
3 years ago
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