<span>There are only four elements that were named after actual scientists.
Curium [Cm] is named after Marie and Pierre Curie. The Curies worked extensively on radioactive elements so another scientist appropriately named this radioactive element after them.
Einsteinium [Es] is named after the famed physicist Albert Einstein.
Lawrencium [Lr or Lw] is named after Ernest Lawrence, who invented a machine to detect radioactivity. Lawrencium is a radioactive element. Mendelevium [Md] is named after Dimitri Mendeleef who created the modern day periodic table.</span>
Answer:
Explanation:
The answer choices are:
<h2>Solution</h2>
You must use the conversion factors to convert J to kcal.
Dividing both sides by 4.184J:
⇒ 1 = 1cal/4.184J
Dividing both sides by 1,000 cal
⇒ 1 = 1kcal / 1,000 cal
Mutiply<em> 578J</em> by the conversion factors to find <em>kcal</em>:
Notice how the units J and cal cancel to yield kcal at the end.
The density of salt water is 1.025 kg/liters .
Answer:
9945.6 J
Explanation:
Amount of heat = Mass * Heat Capacity * Temperature Change
Heat capacity of Water = 4.2 J/gC
Amount of heat = 64 * 4.2 * (69 - 32)
Amount of heat = 64 * 4.2 * 37
Amount of heat = 9945.6 J
Cross-pollination
occurs when pollen from one plant transferred to a different plant with same
species. <span>The two
plants’ genetic material combines and the resulting seeds from that pollination
will have characteristics of both varieties thus producing stronger
plants. In addition, cross- pollination happens
in several means through the help of wind, insect or humans. </span><span>
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