Answer:
Some properties, such as solubility, melting point, boiling point, and density are independent of the amount of substance being examined. These properties are known as intensive properties and are used to identify a substance. The density of a substance is defined as the mass per unit volume.
Explanation:
B-it does. It demonstrate the ability to move in response to environmental stimuli
Im not sure but is it to do with it state for example water when reached to a certain temperature turns into gas
until there is nothing left
Answer:
Fe: 23.1%
N: 17.4%
O: 59.5%
Explanation:
You take the grams that each weigh on the periodic table and add it all up. Afterward you create fractions of each over the whole. (Example: Fe/Fe+N+O) then you divide and turn that decimal into a percentage.
Answer:
Explanation:
We can use the specific heat formula, which is:
Where <em>q</em> is the energy, <em>m</em> is the mass, <em>c</em> is the specific heat capacity, and ΔT is the change in temperature.
We know the mass is 250 grams. The specific heat capacity of water is 4.18 joules per gram degree Celsius. Let's find the change in temperature.
- ΔT = final temperature - initial temperature
Now we know all the values:
Substitute the known values into the formula.
Multiply the first 2 numbers together. The grams will cancel out.
Multiply again. This time the degrees Celsius will cancel out.
The energy needed is <u>80, 465 Joules.</u>