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NeTakaya
3 years ago
5

Scientist who have a chemical element named after them

Chemistry
1 answer:
Artyom0805 [142]3 years ago
6 0
<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>
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a. in supernovae and star collisions

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The star emitts very large quantities of energy and neutrons during supernova, which allow for the production of heavier elements than iron, such as uranium and gold. All these elements are ejected into space during the supernova explosion.

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2H2O + 2Na ? 2NaOH + H2 Which of these is a reactant in this chemical reaction?
marin [14]
<h2>Answer:</h2>

Water (H2O) and Sodium (Na) are reactants.

<h2>Explanation:</h2>

2H2O+2Na......2NaOH+H2

In the above reaction the water (H2O) and sodium (Na) are reactants and sodium hydroxide (NaOH) and hydrogen are products.

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3.96 × 10⁻³ mol Pb

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Step 1: Find molar mass

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Step 2: Use Dimensional Analysis

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Step 3: Simplify

We have 3 sig figs

0.003962 mol Pb ≈ 0.00396 mol Pb

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