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larisa86 [58]
3 years ago
15

During which phase change does the arrangement of water molecules become more orderly

Chemistry
1 answer:
pychu [463]3 years ago
5 0
The answer is C Boiling.
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Which one of these is most likely to gain electrons and which one is most likely to lose electrons? (And please explain why)
Lelu [443]

Answer:

(I). The most likely to lose electron is Rubidium

(II). The most likely to lose electron is Bromine

Explanation:

Given that,

Radium, Indium, Phosphorus, Tellurium, Bromine and Rubidium

We know that,

Metal :

They atom which to lose electron these is called metal.

When the atom loses the electron then the positive charge come on the atom.

The most likely to lose electron is Rubidium

Non metal :

They atome which is gains electron. It is called non metal.

So, we can say that, the non metal gains electron.

When the atom gains the electron then the negative charge come on the atom.

The most likely to gain electron is Bromine

Hence, This is required answer.

8 0
4 years ago
The sum of the protons and neutrons in an atom is its
Orlov [11]
The atomic mass is the sum of the protons and neutrons in an atom
7 0
4 years ago
An atom has 4 protons 4 neutrons, and 4 electrons. This atom has a mass number of
Art [367]

Answer:

16

Explanation:

Hope it helps you

Hope it helps you

6 0
3 years ago
Read 2 more answers
A 4.36-g sample of an unknown alkali metal hydroxide is dissolved in 100.0 mL of water. An acid-base indicator is added and the
Levart [38]

Answer:

a. 102.6g/mol

b. Rb⁺

Explanation:

a. The unknown base, XOH, <em>Where X is the alkali metal</em>, reacts with HCl thus:

XOH + HCl → H₂O + XCl

<em>Where 1 mole of the hydroxide reacts per mole of acid. </em>

Moles of HCl spent to reach the equivalence point are:

17.0mL = 0.017L ₓ (2.50mol / L) = 0.0425moles of HCl

As 1 mole of HCl reacts with 1 mole of base, moles of base are 0.0425 moles.

Molar mass of a compound is the ratio between mass in grams and moles of substance, that is:

4.36g / 0.0425mol =

<h3>102.6g/mol</h3>

b) Molar mass of OH is 17g/mol, thus, the molar mass of the alkali metal is:

102.6g/mol - 17g/mol  = 85.6g/mol

The mass of Rb is 85.5g/mol, thus, the identity of the alkali metal is

<h3>Rb⁺</h3>
3 0
3 years ago
A scientific hypothesis is
MariettaO [177]

Answer:

All of the above.

Explanation:

For a scientific hypothesis to be considered a hypothesis, it has to be testable. When conducting a lab experiment, it also allows the tester to predict what might occur during and after the experimentation. They are also explanatory. For example, theories are hypotheses that have been verified and can explain why something in nature takes place.

4 0
3 years ago
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