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s2008m [1.1K]
3 years ago
5

A weak acid, like Hydrofluoric acid, can be dangerous if _____. Select all that apply. concentrated

Chemistry
1 answer:
Whitepunk [10]3 years ago
5 0

Answer:

Used without adult supervision

Used without goggles

Used without gloves

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The principal quantum number (n): specifies the maximum number of electrons. specifies the 3-D shape of the orbital. none of the
kodGreya [7K]

The principal quantum number (n): specifies the principal shell of the orbital.

The answer is option D.

The important quantum number (n) describes the dimensions of the orbital. Orbitals for which n = 2 are larger than those for which n = 1, as an example. Because they have got opposite electric costs, electrons are interested in the nucleus of the atom.

The numerals, called essential quantum numbers, imply strength degrees as well as the relative distance from the nucleus. A 1s electron occupies the energy stage nearest the nucleus.

A 2s electron, less strongly certain, spends most of its time farther far from the nucleus.

Learn more about quantum numbers here: brainly.com/question/11575590

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6 0
2 years ago
I WILL GIVE BRAINLIEST!!!!
Alona [7]
A. Atomic radius increases
7 0
3 years ago
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This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):
Anastaziya [24]

Answer:

0.017 mol

Explanation:

CH3COOH  - acetic acid - we can write as C2O2H4

From formula C2O2H4 we can see that ratio C: O = 2:2 = 1:1, so number of moles C and O are the same.

So if we have 0.017 mol C, we should have 0.017 mol O.

3 0
3 years ago
What is the percent composition of the u.s quarter, which has the mass of 5.670g
Vitek1552 [10]
The percent composition of each element can be calculated as follows:
% composition = (mass of element / total mass) * 100

The total mass of the quarter is given to be 5.670 grams
Mass of Cu = 5.198 grams
Mass of Ni = 0.472 grams

Substitute in the above equation to get the mass percentage of each element as follows:
% of Cu = (5.198/5.670) * 100 = 91.675%
% of Ni = (0.472/5.670) * 100 = 8.325%
6 0
3 years ago
How could getting so much food from<br> the ocean negatively impact marine<br> ecosystems?
kumpel [21]
Marine food chains at risk of collapse, extensive study of world's oceans finds. ... The acidification of the ocean, where the pH of water drops as it absorbs carbon dioxide, will make it hard for creatures such as coral, oysters and mussels to form the shells and structures that sustain them.
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