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Flauer [41]
3 years ago
13

when an atom is decaying, what number of half lives or percent does it need to decay to to become it's daughter element?

Chemistry
1 answer:
julia-pushkina [17]3 years ago
8 0
I think it is 11.5 hope this help's
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en un recipiente se tiene 800 g de una solución al 35% en masa de ácido sulfuroso, de la cual se evapora 80ml de agua. ¿cuál es
Alinara [238K]

The mass percent of sulfurous acid in the new solution : 38.9%

<h3>Further explanation</h3>

<em>In a container you have 800 g of a 35% by mass solution of sulfurous acid, from which 80 ml of water evaporates. What is the mass percent of sulfurous acid in the new solution? data: density of water is 1g / ml.</em>

<em />

solution 1

composition :

  • 35% acid :

\tt 0.35\times 800~g=280~g

  • water :

\tt 800-280=520~g

solution 2(new solution)

composition :

  • water

\tt 520-(80~ml\times 1~g/ml)=440~g

  • Total mass of new solution after water evaporated

\tt 280(acid)+440(water)=720~g

  • %mass of acid in a new solution

\tt \dfrac{280}{720}\times 100\%=38.9\%

5 0
3 years ago
A geologist measures the height of a mountain.the height is 5.3489km what is the height in meters write your answer in decimal
Xelga [282]

Height of a mountain is 5348.9 meter.

1 kilometer is equal to 1000 meter.

The meter, symbol m, is the primary unit of period in the international system of gadgets, although its prefixed paperwork also are used relatively regularly.

A meter is a general metric unit identical to about three feet 3 inches. This means that a meter is part of the metric gadget of dimension. Guitars, baseball bats, and backyard sticks are examples of items which might be approximately one meter lengthy. Meters also are used to measure distances in races, inclusive of strolling and swimming.

Meter readings tell power suppliers how a lot gasoline and energy you are the use of. In case you do not give your provider meter readings they may have to guess your usage. You typically turn out to be paying too much or too little while this occurs.

Learn more about meter here:- brainly.com/question/218459

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1 year ago
What type of energy uses turbines
labwork [276]

Answer:

The answer is : D. Wind energy

3 0
3 years ago
What is the standard notation of the isotope H-2
andriy [413]
Deutirium is the name of H-2 isotope
3 0
3 years ago
Which of the following is a compound?<br> A. Zinc <br> B. S8 <br> C. CaCl2
sertanlavr [38]

C. Calcium is your best bet. Calcium chloride is amongst inorganic compounds.

3 0
2 years ago
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