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Answer:</h2>
% Composition of elements:
- Magnesium = 75%
- Oxygen = 25%
Atomic mass of given elements:
- Magnesium = 24 g
- Oxygen = 16 g
Now, divide % composition by Atomic mass:
Simplest Ratio:
Empirical Formula:
Answer:
limestone+heat=marble
sandstone+heat=metaquartzite
shale+heat=quartzite
Answer:
The electron stays in an excited state for a short time. When the electron transits from an excited state to its lower energy state, it will gice off the same amound of energy needed to raise to that level. This emitted energy is a photon.
Answer: Doppler Red-Shift Evidence
The Doppler red-shift of light observed from distant stars and galaxies gives evidence that the universe is expanding (moving away from a central point). This allows for Big Bang Theory, because after a “bang” occurs all of the matter moves away from the point of origin.
PLZZ GIVE ME BRAINLIEST
A metallic bond since both are pure metals but are not ionic
