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olga_2 [115]
3 years ago
14

Identify the atom it has 19 protons 19 electrons and 17 neutrons and a mass of 39 amu

Chemistry
1 answer:
3241004551 [841]3 years ago
7 0
The element is Potassium
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What is 2y=x-z solve for x​
weqwewe [10]

Answer:

x=z-y

Explanation:

-x/-1=-z-2y/-1

8 0
4 years ago
As the atomic number on the Periodic Table increases, the number of electrons A. is unchanged B. alternates C. decreases D. incr
Klio2033 [76]

Answer:

D.

Explanation:

I looked it up and said increases, i'm taking a test today in chemistry and had the same question lol.

6 0
3 years ago
Is Banku and Soup, an example Solid-Liquid mixture?​
CaHeK987 [17]

Yes

Explanation:

Banku and Soup is an example of solid - liquid mixture. Banku is a solid dough food made from West Africa. Soup is a rich blend of many spices and recipes.

A mixture is an impure substance whose composition is indefinite. Most of the parts retains their physical properties.

The constituents of a mixture can easily be separated .

  • Banku and soup is an heterogeneous mixture because the constituents are in different phases.
  • Banku is solid and the soup is a solid-liquid mixture.

Learn more:

Heterogeneous mixture brainly.com/question/1446244

#learnwithBrainly

5 0
4 years ago
Who was the first chemist to perform truly quantitative experiments?
Strike441 [17]
Chemistry II, Zumdahl 7th edit, Chapter#2 Questions Bank
A B
The first chemist to perform truly quantitative experiments was? Robert Boyle
The scientist whom discovered the Law of Conservation of Mass is also called the Father of Modern chemistry.Who is that scientist?
3 0
4 years ago
What percent of I-125 has decayed if there are 37.5g of the original sample left?
garri49 [273]

Answer:

[(x-37.5)/x]*100%

62.5%  (assuming the original sample weighs 100.0g)

Explanation:

Let's say that the original sample is x

Mass of I-125 which has decayed: x-37.5

Percentage of decayed mass: [(x-37.5)/x]*100%

Please recheck, for this may not be the correct answer

6 0
3 years ago
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