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stellarik [79]
3 years ago
7

What is the volume of kristas rock

Chemistry
2 answers:
Elan Coil [88]3 years ago
7 0

Answer:

for what I can see in the picture the volume is 155

Explanation:

Citrus2011 [14]3 years ago
5 0

Answer:

30

Explanation:

Measure the water rised in the beaker which is 180 and subtract 150 and you get 30

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Can someone help me with number 2?
DanielleElmas [232]

Answer:

Ammonia (NH3)

Explanation:

its an ionic compound where N nitrogen is bonded to covalent molecules

6 0
1 year ago
When Luis burns wood in a campfire, the particles in the wood break down and energy is released. What type of energy does the wo
matrenka [14]

Answer:

chemical energy is stored in the wood before combustion.

8 0
3 years ago
Zinc reacts with hydrochloric acid according to the reaction equation Zn ( s ) + 2 HCl ( aq ) ⟶ ZnCl 2 ( aq ) + H 2 ( g ) How ma
REY [17]

Answer:

34.7mL

Explanation:

First we have to convert our grams of Zinc to moles of zinc so we can relate that number to our chemical equation.

So: 6.25g Zn x (1 mol / 65.39 g) = 0.0956 mol Zn

All that was done above was multiplying the grams of zinc by the reciprocal of zincs molar mass so our units would cancel and leave us with moles of zinc.

So now we need to go to HCl!

To do that we multiply by the molar coefficients in the chemical equation:

\frac{0.0956g Zn}{1 } (\frac{2 mol HCl}{1molZn})

This leaves us with 2(0.0956) = 0.1912 mol HCl

Now we use the relationship M= moles / volume , to calculate our volume

Rearranging we get that V = moles / M

Now we plug in: V = 0.1912 mol HCl / 5.50 M HCl

V= 0.0347 L

To change this to milliliters we multiply by 1000 so:

34.7 mL

7 0
3 years ago
Question 2
san4es73 [151]

Explanation:

its hard to explain unless we know what the question fully asks..

4 0
3 years ago
In the determining molar volume experiment, we will use water. how will vapor pressure play a role in this experiment?
Bas_tet [7]
Molar volume is a property of a component in a solution. It is defined as the volume occupied by one mole of the component in the closed system. You would not expect all solutions to execute volume additivity because intermolecular forces between the components come into play. There is no such thing as conservation of volume. 

Vapor pressure affects molar volume because gases are very sensitive by these process conditions. Vapor pressure is very temperature-dependent. Consequently, at a different temperature, your component could expand or compress, thus, affecting the molar volume. Moreover, the pressure affects the molecular collisions in the system.
7 0
3 years ago
Read 2 more answers
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