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3 years ago

I WILL MARK BRAINLIEST!Which of the following statements is true?

Chemistry

2 answers:

PtichkaEL [24]3 years ago

6 0

Answer:

B- fission breaks apart nuclei; fusion puts them back together

frez [133]3 years ago

6 0

Answer:

The correct answer is option B.

Explanation:

Fission is a process in which nuclei breaks apart into two. It is also called as nuclear fission. It can be controlled or uncontrolled process in this process high amount of energy release.

Thus, the correct answer is option B.

* Hopefully this helps:) Mark me the brainliest:)!!!

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Balance the equations

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1. 2 H2 + O2 = 2 H2O

2. 6 K + B2O3 = 3 K2O + 2 B

3. 10 Na + 2 NaNO3 = 6 Na2O + N2

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A representative particle of carbon dioxide is

KonstantinChe [14]

Carbon atom with iron and helium

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3 years ago

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Snape grows tired of these conceptual questions and thinks it's time for a problem. What is the retention factor if the distance

MAVERICK [17]

Answer:

The Retention factor (rf) value is = 0.2

Explanation:

Retention factor (Rf) is factor used substances that could be separated using Chromatography. Retention factor determines how fast the component can move on the chromatogram (stationary phase) after elution. Elution occurs when mobile phase (solvent) moves across the stationary phase when the solute has been spotted on the origin.

Retention factor (Rf) ranges from value between 0 and 1. The closer the value to 1, the faster it can move upon elution. Rf can be calculated.

Rf value = distance moved by the solute / distance moved by the solvent

= 0.40cm / 2.00cm

= 0.2

6 0

3 years ago

In the following reaction, how many grams of ammonia (NH3) will react with 27.8 grams of nitric oxide (NO)? 4NH3 + 6NO → 5N2 + 6

Rzqust [24]

4NH₃ + 6NO → 5N₂ + 6H₂O

mol of NO = $\frac{mass of NO}{Molar Mass of NO}$

= $\frac{27.8 g}{30.01 g / mol}$

 = 0.93 mol

Based on the balance equation mole ratio of NH₃ : NO is 4 : 6
= 2 : 3

If mol of NO = 0.93 mol

then mol of NH₃ = $\frac{0.93 mol * 2}{3}$

= 0.62 mol

Mass of ammonia = mol × molar mass

= 0.62 mol × 17.03 g/mol

= 10.54 g

Therefore B is the best answer

3 0

3 years ago

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Which of the following statements best describes why the reaction between sodium and chlorine is not useful in fireworks? Please

nadya68 [22]

Answer:

A. a poisonous gas is one of the reactants

Explanation:

Chlorine gas is a poisonous and very toxic gas. Chlorine is a moderately reactive halogen. It is a greenish-yellow gas with choking and irritating smell. The gas is very poisonous. Proper care must be taken when working with this gas.

This is why chlorine gas are harmful in production of fireworks.

3 0

3 years ago