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Karo-lina-s [1.5K]
3 years ago
7

What is an endpoint in chemistry???

Chemistry
1 answer:
Scilla [17]3 years ago
8 0
Point at which indicator changes colour in a colour titration
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Which element is used for the shiny trim on cars
galben [10]
<span>The correct answer is either Chrome (Chromium), or Aluminum. Unlike steel, these two don't rust easily and can be polished to be quite shiny, especially Chromium, which is why you'll always hear people who like cars talking about chrome wheels and chrome spoilers and things like that. They are not that good for bumpy or roads that are full of holes because they can bend much easier than steel so it can be expensive to maintain.</span>
7 0
3 years ago
Characteristics of matter that cannot be changed are called
olchik [2.2K]
It is called Mass.

Among the physical characteristics of a matter which includes Weight, Mass, Volume, and Density the only characteristic that does not change is the mass. The mass of an object never change from place to place. All the objects have a mass and that is why there is a weight but it changes depends on the gravity. Mass don't.
5 0
3 years ago
The value of Zeff for a valence electron in an atom of silicon is?
lutik1710 [3]

Zeff is the effective nuclear charge wherein, Z resembles the number of protons in the nucleus while S corresponds to the number of non-valence electrons.

Zeff = Z - S

Silicon has 14 protons; its electron configuration is [Ne] 3s2 3p2. Its non-valence electrons is in the n = 1 and n =2 shells. There are 2 electrons in n = 1 and 8 in n = 2, so there are a total of 10 non-valence electron.

<span><span>Z<span>eff</span></span>= 14−10= 4</span>

So, the answer is 4.
6 0
3 years ago
A kicked soccer ball<br> eventually comes<br> to rest. What<br> force causes<br> this?<br> ce
maks197457 [2]

Answer:

friction

Explanation:

jwjwkkskskaksksk

7 0
2 years ago
How much does one mole of NH3 weigh?
Leokris [45]
17.031 g/mol Hope this helps you
6 0
2 years ago
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