Instead of using CAT-scans and X-rays to see the center of the Earth, researchers use waves emitted by earthquakes to get a sense of the planet's innards. Just like an X-ray, seismic waves bounce around, changing direction and speed based on the material they pass through.
Answer: Different elements. H2SO4 is a compound.
Explanation:
Element are the simplest substances and can't be broken down. Is a substance whose atoms all have the same number atomic number. The atomic number indicates the number of protons in the nucleus, and in a neutral atom it has the same number of neutrons. Therefore, for example, hydrogen is an element because it is an atom with a certain atomic number.
On the other hand, a compound is a mixture composed of two or more different elements. So, H2SO4 is made of three different elements, then it is a compound.
Answer:
[H⁺] = 5.011 × 10⁻³ mol.L⁻¹
Explanation:
The pH is converted into concentration of H⁺ as,
[H⁺] = 10^-pH
Where 10 is antilog,
So, putting values,
[H⁺] = 10⁻²·³
[H⁺] = 0.00501
Or,
[H⁺] = 5.011 × 10⁻³ mol.L⁻¹
<u>True,</u> <em>scientists take all the numbers and </em>
<em>bring them down to a smaller scale.</em>
<em> Or in your case a smaller model.</em>
Answer:
metal Atom
Explanation:
every transition metal atom are responsible for the flame color. Some metal are also confirmed by flame test.
