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3 years ago

Use the graph to answer both parts of this question about these three minerals. Do not use calculations.

Chemistry

2 answers:

marissa [1.9K]3 years ago

7 0

Answer:

$\boxed {\boxed {\sf Mercury \ is \ the most \ dense \ and \ titanium \ is \ the \ least \ dense}}$

Explanation:

The formula for density is:

$d=\frac{m}{v}$

As mass and volume increase, so does the density.

In this problem, the density is the line. So, the steeper the slope of the line, the greater the density.

Mercury (Hg) is the most dense because it has the steepest slope.
Copper (Cu) is more dense than titanium but less dense than mercury.
Titanium (Ti) is the least dense because it's slope is the least steep.

So, <u>mercury is the most dense</u> and <u>titanium is the least dense.</u>

11111nata11111 [884]3 years ago

6 0

Answer:

Mercury is the most dense whereas Titanium is the least dense.

Explanation:

Since Density = Mass / Volume, the slope of the line can immediately tell us its relative density between the metals.

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On a flight to Europe, you notice that the packages of peanuts are puffed up. Why? 1. The jet is over-pressurized at high altitu

hodyreva [135]

Answer:

The correct answer is;

5. They were packaged at a higher pressure on the ground, thus causing the gas inside the packages to expand in the sky where the jet is at a lower pressure.

Explanation:

According to Boyle's law, the pressure of a given mass of gas is inversely proportional to it volume at constant temperature

P₁·V₁ = P₂·V₂

At the factories, the peanuts are packaged at atmospheric conditions whereby P₁ = 1 atm, however, the pressure of the air in the atmosphere decreases with altitude as such the pressure in the airplane jet is about a fraction of hat on the ground by about a factor of 0.7.

Therefore P₂ = 0.7 atm and we have

V₂ = P₁·V₁/P₂ = 1 atm×V₁/0.7 atm = 1.43·V₁

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3 years ago

How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl?

Ratling [72]

Yes, you're right the answer is 0,02 moles.

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3 years ago

Write the balanced chemical equation for the reaction of glucose (C6,H12,O6) with oxygen gas to produce carbon dioxide gas

Fittoniya [83]

Answer:

C6H12O6+6O2=6Co2+6H2o

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3 years ago

How many neutrons are present in an atom with atomic number 9 and mass number 19?

Kaylis [27]

Answer:

10 neutrons

Explanation:

N=Z-A ie. number of neutrons=mass number-atomic number

N=19-9=10

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3 years ago

Read 2 more answers

If equal volumes of 0.1 M HCl and 0.2 M TRIS (base form) are mixed together. The pKa of TRIS is 8.30. Which of the following sta

blondinia [14]

Answer:

option D is correct

D. This solution is a good buffer.

Explanation:

TRIS (HOCH $_{2}$ ) $_{3}$ CNH $_{2}$

if TRIS is react with HCL it will form salt

(HOCH $_{2}$ ) $_{3}$ CNH $_{2}$ + HCL ⇆ (HOCH $_{2}$ ) $_{3}$ NH $_{3}$ CL

Let the reference volume is 100

Mole of TRIS is = 100 × 0.2 = 20

Mole of HCL is = 100 × 0.1 = 10

In the reaction all of the HCL will Consumed,10 moles of the salt will form

and 10 mole of TRIS will left

hence , Final product will be salt +TRIS(9 base)

H = Pk $_{a}$ + log (base/ acid)

8.3 + log(10/10)

8.3

6 0

3 years ago