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Norma-Jean [14]
2 years ago
9

PLEASE HELP!!! I'll give brainliest answer

Chemistry
2 answers:
borishaifa [10]2 years ago
7 0

Answer:

Largest to Smallest: Na, K, Mg, N, O, F

Explanation:

ELEN [110]2 years ago
3 0

Answer:

1. MG

2. N

3. F

4. NA

5. O

6. K

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Please help me I promise I will give brainliest!
iragen [17]

Answer:

1. a b c

2. a

3. c

4. west to east

3 0
3 years ago
My teacher gave this assignment for homework, and I don’t get it. A little help please?
SSSSS [86.1K]

County: cell

State: Tissue

Country: Organ

Continent: Organ system

World: organism

(smallest to largest)

3 0
3 years ago
In 3–5 sentences, explain the various factors that should be considered when implementing green roofs
Kruka [31]

Answer:

you should consider waterproofing. depending on the climate in your area, you need to apply multiple layers of waterproofing in the roof for it to support vegetation. you should also confused the types of plants. the types of plants is important for the success of your roof. if you live in a dry area, you don't want to choose plants that can live in dry areas without drying out.

6 0
2 years ago
The chemical breakdown of enormous quantities of organic material buried in the sedimentary rocks has produced gas.
Lelu [443]
The chemical breakdown of enormous quantities of organic material buried in the sedimentary rocks has produced ethane gas.
3 0
3 years ago
How many kJ of heat are released by the reaction of 25.0 g of Na2O2(s) in the following reaction? (M = 78.0 g/mol for Na2O2)
solong [7]

-20.16 KJ of heat are released by the reaction of 25.0 g of Na2O2.

Explanation:

Given:

mass of Na2O2 = 25 grams

atomic mass of Na2O2 = 78 gram/mole

number of mole = \frac{mass}{atomic mass of 1 mole}

                          = \frac{25}{78}

                          =0. 32 moles

The balanced equation for the reaction:

2 Na2O2(s) + 2 H2O(l) → 4 NaOH(aq) + O2(g) ∆Hο = −126 kJ

It can be seen that 126 KJ of energy is released when 2 moles of Na2O2 undergoes reaction.

similarly 0.3 moles of Na2O2 on reaction would give:

\frac{126}{2} = \frac{x}{0.32}

x = \frac{126 x 0.32}{2}

 = -20.16 KJ

Thus, - 20.16 KJ of energy will be released.

6 0
3 years ago
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