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3 years ago

What happened when bromine reacted with aluminum?

Chemistry

1 answer:

-Dominant- [34]3 years ago

4 0

Answer:

The reaction begins and builds up heat. This heat causes the aluminum to melt and float on top of the liquid bromine. Wherever the two elements meet, sparks, heat, and light are given off.

Explanation:

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A 10.0-gram sample of which element has the smallest volume at STP?

DaniilM [7]

(4) zinc

Explanation:

Given parameters:

Mass of the sample = 10g

Condition = STP

Unknown:

Element with the least volume = ?

Solution:

The number of moles of substance as STP can be derived using the equation below;

Volume of substance = number of moles x 22.4

Number of moles = $\frac{mass}{molar mass}$

since mass = 10g

Number of moles of Al = $\frac{10}{27}$ = 0.37mole

Number of moles of Ti = $\frac{10}{47.9}$ = 0.29mole

number of moles of Mg = $\frac{10}{24}$ = 0.47mole

Number of moles of Zn = $\frac{10}{65.5}$ = 0.15mole

Zinc has the least number moles and it will have the lowest volume at STP because the volume directly proportional to number of moles.

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

6 0

4 years ago

Chlorine, selenium and bromine are located near each other on the periodic table. Which of

andriy [413]

Answer:

GIMME DEM POINTS

Explanation:

TROLLLLLEDDDD

5 0

4 years ago

Enter the formula for the polyatomic ion in MnCO3.

joja [24]

The formula is Mn2+CO2= MnCO3

8 0

3 years ago

If you have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, which element is the reactant in excess? 3H2 +

kicyunya [14]

Answer:

nitrogen

Explanation:

The stoichiometry of the reaction says that $H_{2}$ and $N_{2}$ react 3:1 to form 2 moles of $NH_{3}$ , so, if you have 3,5 moles of H, which is equal to 1,75 moles of $H_{2}$ , and 5 moles of N, which are equal to 2,5 moles of $n_{2}$ . only $\frac{1,75 moles of H2}{3}$ =0.583 moles of $N_{2}$ , will react, leaving <em>1.917 moles of </em> $N_{2}$ <em>unreacted</em>, and forming 0.583*2=1.166 moles of $NH_{3}$

3 0

3 years ago

After an experiment, scientists write a ___ which summarizes their experiment and results

Rudiy27

After an experiment, scientists write a Conclusion which summarizes their experiment and results.

6 0

3 years ago