Answer:
The level of the water will be higher for 100g Al because occupy more space than gold.
Explanation:
To understand this problem, we must know Archimedes' principle:
"A body that is submerged in a fluid produce a bouyant force equal to the weight of the fluid that the body displaces". The volume of the body is equal to the volume displaced in the liquid.
Now, as gold is heavier than aluminium, 100g of Al have more volume than 100g of gold, than means:
<h3>The level of the water will be higher for 100g Al because occupy more space than gold.</h3>
In an aqueous solution, the hydronium ion concentration is equivalent to the hydrogen ion concentration because the hydrogen ion exists as the hydronium ion. The pH of pure water is 7, and:
pH = -log[H+]
7 = -log[H+]
[H+] = 1 x 10⁻⁷
Therefore, the hydronium ion concentration in pure water is also 1 x 10⁻⁷.
The mass is 1610 g.
Explanation:
<span>D=<span>MV</span></span>, where D is density, M is mass, V is volume
Known/Given
D=0.921 g/mL
<span>V=1.75 L×<span><span>1000mL</span><span>1L</span></span>=1750 mL</span>
Unknown
M
Equation
<span>D=<span>MV</span></span>
Solution
Rearrange the equation to isolate the mass and solve for mass.
<span>M=D×V=0.921g/mL×1750mL=1611.75 g=1610 g</span> with three significant figures.
The following diagram helps to understand how to manipulate the density equation so solve for any of the variables.
The following Density Triangle will help you determine how to solve
for any missing variable. Put your finger over the missing variable to
see what you need to do to solve for it. For example, if you need to
find volume, put your finger over the V, and you get <span>M÷D</span>.
https://www.teacherspayteachers.com/Product/Science-Journal-Density-Triangle-Foldable-Completed-4360...
With the increase in temperature, the state of matter of water will changed.
<h3>What happen if the temperature of the system is increased?</h3>
If the temperature of water is increased then the state of matter will change from liquid state to gaseous state because the temperature break down the bonds that is present between two water molecules.
So we can conclude that with the increase in temperature, the state of matter of water will changed.
Learn more about water here: brainly.com/question/5060579
<h2><em><u>
Answer - </u></em>b) Be the same as in the second method</h2>
<h3>Brief explanation:</h3>
Enthalpy is an state function that does not depend on the path followed to carry out the reaction but depends upon the initial and final state of system. In above statement both the reaction are same hence the enthalpy change would also be same. This can also be represent in the form of equation,
<h3> ΔHsys = Hf - Hi</h3>
Where,
- ΔHsys is change in enthalpy of system
- Hf is enthalpy of reaction at final state
- Hi is enthalpy of reaction at initial state
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