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Black_prince [1.1K]
4 years ago
11

The first step in creating a budget is A) getting a bank account. B) cutting back on expenses. C) knowing what your income is. D

) listing all of your expenses.
Chemistry
2 answers:
elixir [45]4 years ago
7 0

Knowing what your income is happens to be the most important step in creating a budget. Knowing all of your expenses is the second most important step.

ollegr [7]4 years ago
5 0

MY answer would be C knowing what your income is

sorry if im wrong if i am i guess it would be D

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What type of rock is quartzite
Ilya [14]
Quartzite is a nonfoliated metamorphic rock
6 0
3 years ago
What oxidation state(s) can the alkaline earth metals exhibit?
iragen [17]

Answer:

+2

Explanation:

Alkaline earth metals are present in group 2 of periodic table. There are six elements in second group. Beryllium, magnesium, calcium, strontium, barium and radium.

All have two valance electrons.

Electronic configuration of Beryllium:

Be = [He] 2s²

Electronic configuration of magnesium.

Mg = [Ne] 3s²

Electronic configuration of calcium.

Ca = [Ar] 4s²

Electronic configuration of strontium.

Sr = [Kr] 5s²

Electronic configuration of barium.

Ba = [Xe] 6s²

Electronic configuration of radium.

Ra = [ Rn] 7s²

They are present in group two and have same number of valance electrons (two valance electrons) and show oxidation state +2 by loosing two valance electrons. They also show similar reactivity.

They react with oxygen and form oxide.

2Ba   +   O₂   →    2BaO

2Mg  +   O₂   →    2MgO

2Ca +   O₂   →    2CaO

this oxide form hydroxide when react with water,

BaO  + H₂O   →  Ba(OH)₂

MgO  + H₂O   →  Mg(OH)₂

CaO  + H₂O   →  Ca(OH)₂

With sulfur,

Mg + S   →  MgS

Ca + S   →  CaS

Ba + S   →  BaS

6 0
3 years ago
Choose the element described by the following electron configuration.
earnstyle [38]
The correct option is ARGON.
To quickly find out the element that is been described by the electronic configuration, write down and add together all the index figures in the electronic configuration. The index figures in the above electronic configuration are 2, 2, 6, 2 and 6. If you add all these figures together, you will get 18 and the element that has the atomic number of 18 is argon.
3 0
3 years ago
Read 2 more answers
The average mass of a born atom is 10.81 if you were able to silate a single boron atom what is the chance that you would random
irakobra [83]
20.98 hope that helps
6 0
3 years ago
How many grams of sodium hydroxide are needed to make 250. Ml of a 7.80 m solution?
sashaice [31]
<h3><u>Answer;</u></h3>

= 78 g of NaOH

<h3><u>Explanation;</u></h3>

Concentration = Moles of solute/Volume of solution

Thus;

Moles of the solute = Volume × Concentration

                                = 7.80 Moles/L × 0.250 L

                                 = 1.95 moles

But; 1 mole of NaOH = 40.0 g

Thus;

Mass of NaOH = moles × molar mass

                         = 1.95 moles × 40 g/mole

                        <u> = 78 g of NaOH</u>

7 0
3 years ago
Read 2 more answers
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