2 years ago

How did the cathode ray tube contribute to the history of atomic structure?

1 answer:

3 0

J.J Thompson discovered the electron. He demonstrated that cathode rays were negatively charged. He then realized that the accepted model of an atom did not come out positive nor negative

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Which statement describes the location of metalloids on the periodic table? The metalloids are located below metals and above no

Talja [164]

The metalloids are Boron, Silicon, Geranium, etc and are found to the right of the metals and the left of the nonmetals. Since that is not an option, the best choice would be: The metalloids are located below nonmetals and above metals within a group.

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2 years ago

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I need help with question 48

Stells [14]

Answer:

V H2SO4=30 ml=0.03 l

Cm=16M

CM=n/V

n=CM×V

n= 0.48 moles H2SO4

Cm=0.48/0.3

CM=1.6M

Answer B

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1 year ago

A solution contains 90 mL of methanol, 18 mL of propanol, and 2 mL of diethyl ether. Which is the solvent in this solution?

otez555 [7]

Answer:

Methanol

Explanation:

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2 years ago

When your grandparents were growing up, they ate

Kryger [21]

It is fresher because of new transportation techniques and refrigerated trailers.

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What is a balanced equation for the neutralization of these two compounds? <br><br> HCl <br> Ca(OH)2

loris [4]

In order to balance this, you have to count each element where the elements in the reactants side and the product side should have equal number of molecules. The balanced reaction is as follows:

2HCl + Ca(OH)2 = CaCl2 + 2H2O

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2 years ago