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3 years ago

Heats makes particles vibrate _________ (btw the options are in the pic)

Chemistry

1 answer:

Pie3 years ago

8 0

Answer:ok so When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.

hope this helps have a nice day❤️

Explanation:

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Does anyone know the simplest way to find the rate constant in rate law chemistry?

kiruha [24]

Answer:no I don’t sorry

Explanation:

8 0

3 years ago

How many grams of carbon dioxide are produced from the combustion of 250.G of ethane, C3H8 in the reaction C3H8 +5O2 - 3CO2 +4H2

ludmilkaskok [199]

Answer:

750 g of CO₂

Explanation:

The balanced equation for the reaction is given below:

C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O

Next, we shall determine the mass of C₃H₈ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:

Molar mass of C₃H₈ = (12×3) + (8×1)

= 36 + 8 = 44 g/mol

Mass of C₃H₈ from the balanced equation = 1 × 44 = 44 g

Molar mass of CO₂ = 12 + (16×2)

= 12 + 32 = 44 g/mol

Mass of CO₂ = 3 × 44 = 132 g

SUMMARY:

From the balanced equation above,

44 g of C₃H₈ reacted to produce 132 g of CO₂.

Finally, we shall determine the mass of CO₂ produced by the reaction of 250 g of C₃H₈. This can be obtained as follow:

From the balanced equation above,

44 g of C₃H₈ reacted to produce 132 g of CO₂.

Therefore, 250 g of C₃H₈ will react to produce = (250 × 132)/44 = 750 g of CO₂.

Thus, 750 g of CO₂ were obtained from the reaction.

8 0

3 years ago

Given the balanced ionic equation: 2Al(s) + 3Cu2+(aq) → 2Al3+(aq) + 3Cu(s) Compared to the total charge of the reactants, the to

ryzh [129]

Answer:

3.- The same

Explanation:

1.- In the reactants you need to calculate the charges that you have:

2 Al(s) = zero, because the aluminum is in it based formed (that mean without charge).

3 Cu2+ = 3 x 2+ = 6+ That is the total positive charges that copper collaborate in this reaction.

2.- Then calculate the charges on the products:

2 Al3+ = 2 x 3+ = 6+ charges from the aluminum.

3 Cu(s) = zero, because the copper in this case is in the base form

3.- In this way, the charges at the begging (6+) and at the end (6+) are the same.

4 0

3 years ago

The OH- concentration in a 2.5 x 10-3 M Ba(OH)2 solution is

zhenek [66]

Answer : C) 5.0 x 10^-3 M
if the concentration of Ba(OH)2 is 2.5 x 10^-3 M

then the OH- concentration is twice this so your answer is C.

4 0

3 years ago

Help ASAP I need help on this one?!!!!

Veseljchak [2.6K]

Answer:

segment 4

Explanation:

Its segment 4 because even though they only traveled 55(km) its only been 1 hour. Every other one took ether 1 hour and 5 minutes or 2 hours.(this is my honest opinion im sorry if its wrong)

7 0

3 years ago