6. Is there any way to predict when a specific piece of candy will land marked
side up or "decayed?" If you could follow the fate of an individual atom in a
sample of radioactive material, could you predict when it would decay?
Explain.

The amount of physical material in an object

Answer:

this is from another brainliest answers.

Explanation:

Ionic compounds need to be molten or in solution for electrolysis to work. This is because the charged particles that make them up (ions) need to be free to move to the electrodes.

Answer:

When two distinct elements are chemically combined—i.e., chemical bonds form between their atoms—the result is called a chemical compound. Most elements on Earth bond with other elements to form chemical compounds, such as sodium (Na) and Chloride (Cl), which combine to form table salt (NaCl).

Answer:

Coloroplasts I hope it's right ❤️

Answer:

A and D

Explanation:

Observation

Experimentation

Models

Analysis of existing data

Answer:

it's the chloroplast but I'm not sure which on is it it might be the F.

Answer:

hope this helps

Explanation:

Natural nitrogen (7N) consists of two stable isotopes: the vast majority (99.6%) of naturally occurring nitrogen is nitrogen-14, with the remainder being nitrogen-15. Fourteen radioisotopes are also known, with atomic masses ranging from 10 to 25, along with one nuclear isomer, 11mN.

H3N

Nitrogen-15 | H3N

Answer:

[tex]12x {}^{2} y - 32xy + 8y[/tex]

first factorise out 4y :

[tex] = 4y( {3x}^{2} - 8x + 2)[/tex]

Answer:

22:

Formular:

[tex]atomic \: mass = \frac{ \sum(isotopic \: mass \times \%abundance)}{100} \\ [/tex]

substitute:

[tex]atomic \: mass = \frac{(23.985 \times 78.70) + (24.986 \times 10.13) + (25.983 \times 11.17)}{100} \\ \\ = \frac{(1887.620) + (253.108) + (290.230)}{100} \\ \\ = \frac{2430.958}{100} \\ \\ { \boxed{ \boxed{average \: atomic \: mass = 24.3 \: amu}}}[/tex]

23:

Same element is represented by same number of protons.

Answer:

6 protons. 6 protons

7 neutrons. 8 neutrons

6 electrons. 6 electrons

Note: Atoms with same proton number but different mass number are called isotopes

Answer:

Acid btw I am new in Brainly

Answer:

Explanation:

im not sure

Answer:

5.2427*10^4

If rounding then 5.2*10^4

Explanation:

Answer:

false because trachea connects to the lungs and oesophagus connects from the mouth to the stomach

Answer:

false

Explanation:

It starts with the mouth. The esophagus is a long tube that connects the mouth to the stomach, which is within the ribcage. The stomach is a muscular bag-like structure and forms a J-shaped pouch and is located under the ribcage. The stomach connects to the small intestine.

Answer:  Charles' Law

Explanation:  At constant pressure, Charles's law states that the volume of a given amount of gas is directly proportional to its temperature on the kelvin scale.  [0 Kelvin = 0 Liters gas]

Explanation:

. Charles’s law—named for J.-A.-C. Charles (1746–1823)—states that, at constant pressure, the volume V of a gas is directly proportional to its absolute (Kelvin) temperature T, or V/T = k. 

Answer:

Lithium, Hydrogen, Sodium, or Oxygen, Sulfur, Selenium They are all in the same column. Find three elements in the same family and list them. 4. Oxygen, Carbon, Nitrogen, Aluminum, Silicon, Phosphorous They are all in the same row

Explanation:

Answer:

Softening - In water softening, hydrated lime is used to remove carbonate "hardness" from the water. Hardness caused by other calcium and magnesium salts, called noncarbonate hardness, is generally treated by means of the lime-soda process, which entails the precipitation of magnesium by lime.

Answer:

Physical properties are used to observe and describe matter. Physical properties can be observed or measured without changing the composition of matter. These are properties such as mass, weight, volume, and density.

Answer:

2.5

Explanation:

13.4 by 5.36

Mass by volume

Answer:

11.1 grams per cubic cm

Explanation:

Volume = 13.4 in^3 = 219.587 cm^3

Mass = 5.36 lb = 2431.255 gram

[tex]density = \frac{mass}{volume} \\ = \frac{2431.255}{219.587} \\ = 11.0719441 \\ \approx \: 11.1 \: grams \: per \: {cm}^{3} [/tex]

Answer:

well its def is : an explanation of observations or events based on knowledge gained from many observations and investigations

Explanation:

Answer:

0.1 M

Explanation:

Molarity = number of moles / litres of solution.

4 g of calcium bromide = 0.02 mol

(found by dividing 4 g by the atomic mass of CaBr2, which is 199.886)

200 mL of solution = 0.2 litres

Molarity = 0.02 mol / 0.2 L = 0.1 M

Taking into account the definition of molarity, the molarity of the solution is 0.1 [tex]\frac{moles}{L}[/tex].

In first place, you have to know that molarity is a measure of the concentration of that substance and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

[tex]Molarity=\frac{number of moles}{volume}[/tex]

Molarity is expressed in units [tex]\frac{moles}{L}[/tex].

In this case you know that 4.0 g of calcium bromide, CaBr₂, dissolves in enough water. Then, the molar mass of calcium bromide being 199.8 g/mole, (that is, the mass of one mole of the compound), the number of moles that 4.0 g of the compound contain is calculated as:

amount of moles=4.0 g × [tex]\frac{1 mole}{199.8g}[/tex]

amount of moles= 0.02 moles

And being the volume 200 mL = 0.2 L (being 1000 mL= 1 L), and replacing the values ​​in the definition of molarity, you obtain:

[tex]Molarity=\frac{0.02 moles}{0.2 L}[/tex]

Solving:

Molarity= 0.1 [tex]\frac{moles}{L}[/tex]

In summary, the molarity of the solution is 0.1 [tex]\frac{moles}{L}[/tex].

Learn more about molarity with this example: brainly.com/question/15406534?referrer=searchResults

Answer:

B.Revisionary

Explanation:

Revisionary movement usually use legal channels to seek change

A movement that  tries to improve a part of society, usually through legal methods is a  revisionary movement.

A revisionary movement always target the revision or improvement of the whole or part of the society. Many revisionary movements across the world are calling for different types of social changes such as gender equality and equal access to education.

Hence, a movement that  tries to improve a part of society, usually through legal methods is a revisionary movement.

Learn more: https://brainly.com/question/1411414

Answer:

developing the atomic theory of matter

Explanation:

Answer:

Advantages of chemistry:-

•Basic knowledge of chemistry helps you to read and understand product labels.

•Chemistry can help you make informed decisions.

•Chemistry is at the heart of cooking. ...

•A command of chemistry can help keep you safe!

Disadvantages of chemistry:-

•It isn't a sustainable form of energy. ...

•It can be expensive.

•It can produce harmful waste.

•It can be used to create devastating weapons.

Answer:

60.06 g/mol

The solute is urea, CO(NH2)2. Molar mass of urea: (12.01) + 16.00 + 2(14.01 + 2(1.008)) = 60.06 g/mol.

Explanation:

Answer:

60.06 g/mol

Explanation:

the solution area,CO(NH2)2.molar mass urea:

(12.01)+16.00+2(14.01+2(1.008))=60.06g/mol