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marshall27 [118]
3 years ago
9

The density of gold is 19.3 g/cm3. What is the volume of a 575 gram bar of pure gold?

Chemistry
2 answers:
tiny-mole [99]3 years ago
6 0

Answer:

Volume = 29.79 cm³

Explanation:

Gnoma [55]3 years ago
3 0

Answer:

The  answer to your question is: Volume = 29.79 cm³

Explanation:

Data

Density of gold = 19.3 g/cm3

Mass = 575 grams

Formula

density = mass / volume

Volume = mass/density

Volume = 575 g / 19.3 g/cm3

Volume = 29.79 cm³

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If the value for ΔS is postive, and the value for ΔH is negative, thr reaction will be
dmitriy555 [2]

It follows that the reaction is spontaneous at high temperatures Option A.

<h3>What is ΔS ?</h3>

The term ΔS is referred to as the change in the entropy of the system. Now recall that entropy is defined as the degree of disorderliness in a system. If a system is highly disorderly then it means that it has a high entropy. Also, ΔH has to do with the heat change that accompanies a reaction.

We know that both the entropy and the heat change can both either be positive or negative. Now we know that the equation ΔG = ΔH - TΔS can be used to ascertain whether or not a reaction will be spontaneous. If the result is negative, then the reaction will be spontaneous.

As such, when then it follows that the reaction is spontaneous at high temperatures Option A.

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6 0
1 year ago
106. Describe the process scientists use when they study fossils. Include where fossils could be found and what steps scientists
Studentka2010 [4]
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3 0
3 years ago
When a rock is altered by extreme heat and pressure, what type of rock is the result?
erik [133]
The way most metamorphic rock<span> is formed. Change in </span>rock is the result<span> of metamorphism over a large area. </span>Type of rock<span> texture that </span>results<span> when </span>extreme pressure<span> causes minerals in metamorphic </span>rock<span> to realign, or when minerals separate out into dark and light bands.</span>
6 0
3 years ago
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Explain how you would use ir spectroscopy to distinguish between 1-bromo-3-methyl-2-butene and 2-bromo-3-methyl-2-butene.
bulgar [2K]
Structures of <span>1-bromo-3-methyl-2-butene and </span>2-bromo-3-methyl-2-butene are shown below.

It can be seen that <span>1-bromo-3-methyl-2-butene is containing a C-H bond in which carbon is sp</span>² hybridized (i.e. =C-H) while such bonding is absent in 2-bromo-3-methyl-2-butene. 

So, as we know that the peak of C-H stretching of alkenes is found in the region of 3010-3100 cm⁻¹ with medium intensity. Therefore, 1-bromo-3-methyl-2-butene will show this peak and 2-bromo-3-methyl-2-butene will lack this peak in IR spectrum.

3 0
3 years ago
A metal ball has a density of 807.g/mL. If it has a volume of 0.0300L, calculate the mass of the object in grams and correct sig
scZoUnD [109]

Answer:

24,000 grams

Explanation:

  1. 0.0300 L × 1000 ml/1 L = 30.
  2. using the d = m/v formula, we plug in 807. g/mL = m/30. L
  3. 807. × 30 = 24210.00
  4. using sig figs, the answer would be 24,000 grams (decimals: 0, sig figs: 2)
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3 years ago
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