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Fantom [35]
2 years ago
4

The type of radioactive particle that can be stopped by a sheet of paper is the O alpha particle Obeta particle O gamma ray Oura

nium​
Chemistry
1 answer:
Usimov [2.4K]2 years ago
6 0

Answer:

Alpha Particle

Explanation:

Alpha particles require the least amount of energy. They are represented with the symbol A. Two neutrons and two protons get added to each other. It has symbol with He as well. The next higher flow is Beta particle. It requires the use of electrons. One of the neutrons turns into a proton. Gamma rays are the most dangerous radioactive decays of all. They are represented with the use of symbol Y. They have no mass nor require a change.

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Which part of experimental design is most important to a scientist when replicating an experiment? Having exactly the same data
yarga [219]

Answer:

The answer to your question is below:

Explanation:

Having exactly the same data as the previous experiment I think that having the same data as the previous experiment is extremely important but not the most important, for me is the second most important.

Using the same procedure and variables as the previous experiment For me, this is the most importan thing when a scientist is designing an experiment, because if he or she follow exactly the same procedure and variables, then the results will be very close.

Conducting an experiment similar to the previous experiment  This characteristic is important but not the most important.

Using the same laboratory that was used in the previous experiment It is not important the laboratory, if the procedure and variables are the same, your experiment must give the same results in whatever laboratory.

5 0
2 years ago
Read 2 more answers
Which three temperature readings all mean the same thing? Question options: 273 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit
shtirl [24]
273 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit
4 0
2 years ago
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A student measures a volume as 25 mL, whereas the correct volume is 23 mL. What is the percent error? * O 8.7% O 0.92% O 0.087%
quester [9]

Answer:

no u

Explanation:

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2 years ago
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Rank the formation of the solutions A, B, and C from the most exothermic to the most endothermic. Rank the enthalpy of solution
Elodia [21]

This is an incomplete question, the table is attached below.

Answer : The correct ranking of the solution from most exothermic to most endothermic will be: A, B and C.

Explanation :

As we know that the intermolecular force of attraction play an important role in the interaction of solute-solute, solute-solvent and solvent solvent solution.

In the solution A, the solute-solute and solvent-solvent interactions are weak. So, their solute-solvent interaction will be strong. That means, the solution will be more exothermic.

In the solution C, the solute-solute and solvent-solvent interactions are strong. So, their solute-solvent interaction will be weak. That means, the solution will be more endothermic.

Thus, the correct ranking of the solution from most exothermic to most endothermic will be: A, B and C.

4 0
2 years ago
How much volume (in cm3) is gained by a person who gains 11.1 lbs of pure fat?
kirill [66]

The density of human fat is 0.918 g/cm^{3}. The mass of the pure fat is 11.1 lbs.

First convert mass from lb to g as follows:

1 lb=453.592 g

Thus,

11.1 lb\rightarrow 11.1\times 453.592 g=5034.875 g

Density of a substance is defined as mass per unit volume, thus volume can be calculated as:

V=\frac{m}{d}

Putting the values,

V=\frac{5034.875 g}{0.918 g/cm^{3}}=5484.61 cm^{3}

Therefore, volume gained by person will be 5484.61 cm^{3}.

6 0
2 years ago
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