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Norma-Jean [14]
3 years ago
8

The elements with the highest ionization energy, and thus the lowest reactivity are

Chemistry
2 answers:
Artist 52 [7]3 years ago
4 0
Noble gases is the answer
madam [21]3 years ago
3 0
I believe that noble gases would answer your question!
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A plane mirror is useful for seeing:
AURORKA [14]
C. A nearly identical image.
6 0
3 years ago
Pressure is this sample?
faltersainse [42]

Answer:

P = 164 Atm

Explanation:

PV = nRT => P = nRT/V

n = 10.0 moles

R = 0.08206 L·Atm/mol·K

T = 27.0°C = 300 K

V = 1.50 Liters

P = (10.0 mol)(0.08206 L·Atm/mol·K )(300 K)/(1.50 Liters) = 164.12 Atm ≅ 164 Atm (3 sig. figs.)

5 0
3 years ago
a radio controlled airplane is moving at a velocity of 23 m/s. it accelerates to a velocity of 85 m/s in 9.3 seconds. what accel
tatuchka [14]

I will show you a method to find a velocity of anything:-


Find average velocity when acceleration is constant.

Set up an equation with position and time instead.

Find the distance between the start and end points.

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Divide the total displacement by the total time.

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7 0
3 years ago
4Fe + 3O2 → 2Fe2O3
topjm [15]

Answer:

moles Fe₂O₃ = 0.938 mole

Explanation:

Convert given data to moles, solve in terms of moles by reaction ratios in balanced equation. After obtaining answer in moles, convert to needed dimension. In this case, no conversions are needed.

       4Fe              + 3O₂       =>          2Fe₂O₃

105g/56g·mol⁻¹

= 1.875 mol Fe => => => => => =>     2/4(1.875 mol Fe₂O₃) = 0.938 mol Fe₂O₃

8 0
3 years ago
Can someone please help me with this? I would appreciate it.
Luba_88 [7]

Answer: State

Explanation:

The rock on the left is more shiny than the right, so that’s incorrect.

The rocks are not the same color, so that’s also incorrect.

Even though you can’t feel the textures, the right rock looks grainy and the left on doesn’t.

They both are solid, so that is the correct answer.

6 0
3 years ago
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