"Taconian orogeny" mountain-building event occurred in New York State during the time when Valcouroceras was living in oceans covering parts of New York State.
<u>Option: C</u>
<u>Explanation:</u>
A timeframe of mountain construction, which ended 440 million years earlier is known as the Taconic orogeny. A tremendous network of mountains developed from eastern Canada down to what is today the US East Coast Piedmont.
As the mountain range deteriorated during the Silurian and Devonian periods, sediments from the mountain range dispersed across the Appalachians and midcontinental North America of today. It took place when a terrane or sequence of terranes i.e volcanic arcs and microcontinents collide with east North America in a subduction zone that dips east.
<span>When 18O (Oxygen) is struck by a proton, 18F (Fluorine) and another particle are produced. This other particle produced by +Beta decay is a positron, or </span><span>1 /0n (Option #6 in the choices you provided)</span>
Answer:
P4Se3
Explanation:
Applying the Law of Conservation of Mass:
(133 mg total) - (45.8 mg P) = 87.2 mg Se
Dividing by the molar mass,
Phosphorus:-(45.8 mg P) / (30.97376 g P/mol) = 1.4786 mmol P
Selenium:-(87.2 mg Se) / (78.96 g Se/mol) = 1.1044 mmol Se
Divide by the smaller number of millimoles:
(1.4786 mmol P) / 1.1044 mmol = 1.339
(1.1044 mmol Se) / 1.1044 mmol = 1.000
multiply by 3, to get a whole number interger. then round to the nearest whole numbers to find the empirical formula.
Therefore the empirical formula is P4Se3
Answer:
As air rises upwards it expands and cool down and then it stops rising when it matches the temperature of surrounding air. ... Cool air can't hold moisture as much as warm air. So moisture condenses into droplets of water and thus forming cloud.
The correct answer among the choices given is option B. The one that describes a proper use of eyeglasses is that using diverging lenses to help a nearsighted person by moving the image from in front of the retina to the retina. For this, t<span>he lenses will diverge the light before it reach the eye and aim it to the retina, correcting our nearsighted visual.</span>