In 1932, james chadwick discovered a new subatomic particle when he bombarded beryllium-9 with alpha particles. one of the products was carbon-12. what particle did chadwick discover?

A 76 pound flask a mercury cost $126 the density and mercury is 13.534 g/cm³ find the price of one cubic inch of mercury by calculating the following intermediate values

Why are noble gases more difficult to isolate than other elements?

An electrically neutral atom of oxygen has eight electrons. What other facts do you know for sure about this atom? There are eight neutrons in the nucleus. There are eight protons. There is a charge of + 8 on an atom of beryllium.

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Propose a mathematical equation to calculate the charge of an ion from the number of protons and electrons in an ion confirm that your equation Works using two positive ion examples and two negative ion examples

What is the reactant (s) in the chemical equation below? 2Al (s) + 2NaOH (aq) + 2H2O () 2NaAlO2 (aq) + 3H2 (9) A. 2Al (s) + 2NaOH (aq) + 2H200) B. 2NaAlo2 (aq) + 3H2 (g) C. 2Al (s) D. 3H2 (g)

In an oil spill, why does the oil not mix with the sea water? A. Lipids are hydrophobic B. Lipids are hydrophilic. C. Lipids are saturated. D. Lipids are unsaturated.

What mass of KCL is contained in. 350 M solution of KCL?

Given the balanced equation: 3fe3 + (aq) + al (s) → 3fe2 + (aq) + al3 + (aq) what is the total number of moles of electrons lost by 2 moles of al (s) ?

A container can hold 65g of water. circle the conversion factor needed to ind the mass of water that 5 identical containers can hold