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tensa zangetsu [6.8K]
3 years ago
6

The mass of a 6.0 mL sample of kerosene is 4.92. The density of kerosene is

Chemistry
1 answer:
weqwewe [10]3 years ago
3 0
4.92 grams / 6 mL = .82 grams / mL

<span>(A) 0.82 g/mL</span>
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A prairie dog eats grass. A coyote eats the prairie dog. This is an example
Oduvanchick [21]

Answer:

This is an example of a food chain

Explanation:

Think of it as a chain reaction. The grass feeds and nourishes the prairie dog. Upon eating the prairie dog, the coyote gets the nutrients from both the grass the prairie dog ate and from the prairie dog itself.

5 0
2 years ago
Find the mass of an object that has a density of 1.5 g/cm3 and has a volume of 8cm3
zubka84 [21]

Answer:

density= 1.5 g/cm3

volume= 8cm 3

mass = density×volume

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7 0
3 years ago
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2 years ago
Read 2 more answers
1.72 moles of NOCI were placed in a 2.50 L reaction chamber
elena-14-01-66 [18.8K]

The equilibrium constant, Kc=0.026

<h3>Further explanation</h3>

Given

1.72 moles of NOCI

1.16 moles of NOCI  remained

2.50 L reaction chamber

Reaction

2NOCI(g) = 2NO(g) + Cl2(g).

Required

the equilibrium constant, Kc

Solution

ICE method

   2NOCI(g) = 2NO(g) + Cl2(g).

I    1.72

C   0.56           0.56         0.28

E   1.16              0.56         0.28

Molarity at equilibrium :

NOCl :

\tt \dfrac{1.16}{2.5}=0.464

NO :

\tt \dfrac{0.56}{2.5}=0.224

Cl2 :

\tt \dfrac{0.28}{2.5}=0.112

\tt Kc=\dfrac{[NO]^2[Cl_2]}{[NOCl]^2}\\\\Kc=\dfrac{0.224^2\times 0.112}{0.464^2}=0.026

4 0
3 years ago
Arrange the following set of atoms in order of decreasing atomic size: Sn, I, Sr
vampirchik [111]
Atomic size
Sr>Sn>I

A)
B)
3 0
3 years ago
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