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Nonamiya [84]
4 years ago
8

Bonus question #2: Unknown element, Element X, exists in nature as two isotopes:

Chemistry
1 answer:
scoray [572]4 years ago
4 0

Answer:

Explanation:

your answer is 351.96 i not a 100 per sent right but that should be it

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7 is the only basic number on a pH scale

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Look at the periodic table. Find the element carbon. What is its symbol?
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4 years ago
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Leonard designed a parallel circuit to light two light bulbs. But his circuit doesn’t work. Which two items in the circuit must
klasskru [66]

Answer : When a parallel circuit is built the voltage across each of the components remains the same, also the total current passed is the equal to sum of the currents passing through each components in the circuits.


When 2 or more components are tried to be connected in parallel they maintain the same potential difference (in voltage) across their ends of the circuit.


The potential differences across the components are the observed to be same in magnitude, and they have identical polarities between them.


Then, this same voltage is applicable to all circuit components connected in parallel.


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3 0
3 years ago
Astatine-210 has a half-life of 8.08 days. What fraction of a sample of astatine-210 is left unchanged after 16.16 days?
Flauer [41]

Answer:

0

Explanation:

Given parameters:

Half-life  = 8.08days

Unknown:

What fraction is left unchanged after 16.16days = ?

Solution:

The half - life of a substance is the time taken for the half of a radioactive material to decay to half.

 

  Day 0           Day 8.08         Day 16.16

   100%                 50%                 0%        Parent

    0%                     50%                100%     Daughter

After 16.16 days, non of the original sample will remain unchanged.

6 0
3 years ago
1Gg = _____g fgfgnxnhvbnfbdcvb
statuscvo [17]

ok what does this mean?

7 0
3 years ago
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