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Maurinko [17]
3 years ago
12

What is the relationship between properties of substances and

Chemistry
1 answer:
Ksju [112]3 years ago
5 0

Answer:asdfcgvvvvvvvvvvvvvvvbhj

Explanation:

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A piece of metal has a volume of 30.0cm3 and a mass of 252g. What is its density? what metal do you think this is?
Alborosie

Answer:

Explanation:

  1. get density = D = m / V = 0.252 / 0.00003 = 8400
  2. metal will be Cu => bronze
3 0
3 years ago
How many silver (Ag) atoms are in a silver bar that is 20.0 g? A. 1.3 3 1027 Ag atoms B. 6.02 3 1023 Ag atoms C. 1.1 3 1023 Ag a
postnew [5]
C. 1.1 3 1023 Ag atoms
4 0
3 years ago
Read 2 more answers
sing any data you can find in the ALEKS Data resource, calculate the equilibrium constant K at 25.0°C for the following reaction
prisoha [69]

Answer:

2.76 × 10⁻¹¹  

Explanation:

I don’t have access to the ALEKS Data resource, so I used a different source. The number may be different from yours.

1. Calculate the free energy of formation of CCl₄

                         C(s)+ 2Cl₂(g)→ CCl₄(g)

ΔG°/ mol·L⁻¹:       0         0         -65.3

ΔᵣG° = ΔG°f(products) - ΔG°f(reactants) = -65.3 kJ·mol⁻¹

2. Calculate K

\text{The relationship between $\Delta G^{\circ}$ and K  is}\\\Delta G^{\circ} = -RT \ln K

T = (25.0 + 273.15) K = 298.15 K

\begin{array}{rcl}-65 300 & = & -8.314 \times 298.15 \ln K \\65300& = & 2479 \ln K\\26.34 & = & \ln K\\K& = & e^{26.34}\\&= & \mathbf{2.76 \times 10}^{\mathbf{11}}\\\end{array}

3 0
3 years ago
One situation indicates a physical change rather than a chemical change. which situation indicates a physical change
Goryan [66]

if you were to fold a piece of paper into a bunch of pieces.

Explanation:

its just a different shape but it's still the same piece of paper

3 0
3 years ago
If y = 15 when x = 60, find y when x = 45.
Delvig [45]
Y=15 x=60
•1/3 •1/3
y=5 x=45
4 0
2 years ago
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