In which sample are the particles arranged in a regular geometric pattern?

Chemistry

1 answer:

andrew11 [14]3 years ago

7 0

There is no picture hunny. Please add a picture please boo.

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An elements atomic number is 57. How many protons would an atom of this element have?

AlladinOne [14]

57 protons are in this atom.

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4 years ago

A reaction showing heat as a product is an exothermic reaction.<br><br> TRUE<br><br> FALSE

denis-greek [22]

Answer:

The answer to your question is: True

Explanation:

An exothermic reaction releases heat then, it is showed as a product.

An endothermic reaction needs heat to happen, it is represented in the reactants.

7 0

3 years ago

Read 2 more answers

Consider the following reaction: NH4I(s) NH3(g) + HI(g) If a flask maintained at 674 K contains 0.138 moles of NH4I(s) in equili

xz_007 [3.2K]

Answer:

4.08 × 10⁻³

Explanation:

Step 1: Write the balanced reaction at equilibrium

NH₄I(s) ⇄ NH₃(g) + HI(g)

Step 2: Calculate the equilibrium constant

The equilibrium constant (K) is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. Only gases and aqueous species are included.

$K = [NH_3] \times [HI] = 4.34 \times 10^{-2} \times 9.39 \times 10^{-2} = 4.08 \times 10^{-3}$

4 0

3 years ago

What is the answer for this?

Dafna1 [17]

Particle E is an atom because on the periodic table the number of protons is the same exact number of electrons and the number of neutrons cannot exceed one because protons and neutrons add up to give electrons

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3 years ago

Which would be expected to have a higher boiling point t-butyl alcohol or n-butyl alcohol?

patriot [66]

T-butyl alcohol boiling point 82.4*C, 356 K, 180*F
N-butyl alcohol boiling point 117.2*C

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3 years ago