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padilas [110]
3 years ago
15

Select the option below that includes the names for all three cubic crystal Bravais lattices. a. complex cubic, face-centered cu

bic, inverse-centered cubic b. complex cubic, face-centered cubic, body-centered cubic c. simple cubic, face-centered cubic, body-centered cubic d. simple cubic, corner-centered cubic, body-centered cubic
Chemistry
1 answer:
coldgirl [10]3 years ago
7 0

Answer:

The answer is C. Simple cubic, face-centered cubic, body-centered cubic

Explanation:

Simple cubic: Containing one lattice point on each corner of the cube with each atom at the lattice point shared equally between the eight adjacent corners.

Body-centered cubic: having one lattice point in the center of the unit cell in addition to the eight corners. i.e (\frac{1}{8} * 8 + 1 )

Face-centered cubic: having lattice points on the faces of the cube giving exactly one half contribution.

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Kind of protists can live in groups with different individuals performing different jobs (site 1)
zlopas [31]

Answer:

The plasmodial slime molds are the kind of protist that can live in groups in which different individuals perform different jobs. Some kinds of bacterial cell walls also have other functions.

8 0
3 years ago
What is the volume of 2.10 moles of chlorine gas (Cl2) at 273 K and 1.00 atm?
dybincka [34]
I think the answer is 47.1 . I'm not sure. Iv'e done it before but I haven't got my grade for the answer yet. Hope this right and hope it helps!
6 0
3 years ago
The gas-phase reaction of NO with F2 to form NOF and F has an activation energy of Ea = 6.30 kJ/mol and a frequency factor of A
NISA [10]

Answer:

2.74 × 10⁸ M⁻¹.s⁻¹ = 2.74 × 10⁸ L.mol⁻¹.s⁻¹

Explanation:

Let's consider the following second-order reaction.

NO(g) + F₂(g) → NOF(g) + F(g)

We can find the rate constant (k) using the Arrhenius equation.

k=A \times e^{-Ea/R\times T}

where,

  • A: frequency factor
  • Ea: activation energy
  • R: ideal gas constant
  • T: absolute temperature (695°C + 273.15 = 968 K)

k=6.00 \times 10^{8} M^{-1}.s^{-1} \times e^{-6.30\times 10^{3}J /(8.314 J/mol.K)\times 968 K} = 2.74 \times 10^{8} M^{-1}.s^{-1}

8 0
3 years ago
Which of the following is NOT a sign of a chemical reaction?
Andru [333]
Change in size because that just means that more is added rather than anything reacting
8 0
3 years ago
Read 2 more answers
Water decomposes to hydrogen and oxygen gas as shown in
inysia [295]

Answer:

6.04 g O2

Explanation:

6.80 g H2O x (1 mol/18.0 g) x (1 O2/2 H2O) x (32.0 g/1 mol) = 6.04 mol O2

8 0
3 years ago
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