Gatorade, and Chicken Noodle Soup, as these are made with more than one ingredient.
Answer:
Explanation:
It is easier if you convert the kelvin temperature into Celsius degrees:
- ºC = T - 273.15 = 150 - 273.15 = -123.15ºC
Now, you know that that is a very cold temperature. Thus, may be the oxygen is not gas any more but it changed to liquid . . . or solid?
You must search for the boiling point and melting (freezing) point of oxygen in tables or the internet. At standard pressure (about 1 atm) they are:
- Melting point: −218.79 °C,
- Boiling point: −182.962 °C
That means that:
- below -218.79ºC oxygen is solid (not our case).
- between -218.79ºC and -182.962ºC oxygen is liquid (not our case)
- over -182.962ºC oxygen is a gas. This is our case, because -123.15ºC is a higher temperature than -182.962ºC.
Hence, <em>the state of matter of oxygen at 150K</em>, and standard pressure, is gas.
Answer: Diamond is covalent crystal. It has the highest melting point because high energy covalent bonds hold the crystal together.
Explanation: Covalent bonds are very strong, so covalent network solids typically have the highest melting points out of all four types of solids.
The data we collect is called empirical evidence, which just refers to the information collected by experiments or other observations.
When the nuclear half-life of the radioactive isotope is showing the time needed for the isotope to be half of its initial value of mass.
so with each half-life, the isotope will be halved of its initial value as example:
after the first half-life, the isotope will lose 50 % of its initial value
and after the second half-life, the isotope will lose 25% of its initial value
and after the third half-life, the isotope will lose 12.5 % of its initial value
and so on,
So here to get how many numbers of half-lives we will use this formula:
numbers of half-lives = total time passed / the half-life of the isotope
= 30 days / 14 days
=2 days
∴remainig mass = initial mass / 2^numbers of half-lives
= 10 g / 2^2
= 2.5 g