The layer of skin that contains nerves and blood vessels is the______
Answer: Dermis
<h3>
Answer:</h3>
0.89 J/g°C
<h3>
Explanation:</h3>
Concept tested: Quantity of heat
We are given;
- Mass of the aluminium sample is 120 g
- Quantity of heat absorbed by aluminium sample is 9612 g
- Change in temperature, ΔT = 115°C - 25°C
= 90°C
We are required to calculate the specific heat capacity;
- We need to know that the quantity of heat absorbed is calculated by the product of mass, specific heat capacity and change in temperature.
That is;
Q = m × c × ΔT
- Therefore, rearranging the formula we can calculate the specific heat capacity of Aluminium.
Specific heat capacity, c = Q ÷ mΔT
= 9612 J ÷ (120 g × 90°C)
= 0.89 J/g°C
Therefore, the specific heat capacity of Aluminium is 0.89 J/g°C
Answer:
2.88L
Explanation:
So lets first consider the definition of molarity.
Molarity is the amount of moles per one L of solution. So we can simply put this as:
M = moles/L of solution
So the way we are going to approach this is we need to find the amount of moles of HCl. By doing this we can then use the amount of moles we have to figure out how much 5M solution we can then make. So lets plug in what we know:
It gives us 12M of HCl so M = 12
We also have 1.2L of HCl so volume of soltion = 1.2L
Meaning we have:
So if we multiply the 1.2 over we get:
Moles: 14.4
So we used 14.4 moles of HCl in our original 12M solution.
Now we can plug this value with our 5M in instead to get our amount of solution we could form:
This gives us
5(volume) = 14.4 moles
Meaning that
Volume = 14.4/5 or 2.88L
Answer:
caracterizados por ser malos conductores del calor y la electricidad.
1. Sunspots
2. Sun
3. Spectroscopy lets scientists identify silicon dust in the clouds of gas giant planets like HD 209458b located 150 light-years away, and<span>The Earth's atmosphere absorbs much of the infrared and ultraviolet light that passes through it. Space telescopes can detect these waves</span>
