3 years ago

the speed limit is posted as 35 km/hr . your speedometer reads that you are going 40 miles/hr. are you speeding?

Chemistry

1 answer:

Morgarella [4.7K]3 years ago

4 0

No, because 40 miles is the same as nearly 25 km/h.

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3 years ago

25,000cg is equal to _g

defon

Answer:

250 g

Explanation:

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3 years ago

What do these observations tell you about the rate and direction of heat flow through each specific type of plastic?

Murljashka [212]

Answer:

Heat is something you can't control

Explanation:

Plastic is something you could control like moving it around

3 0

3 years ago

Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid

kozerog [31]

Answer:

solubility

Explanation:

Solubility is the ability of a solid, liquid, or gaseous chemical substance (referred to as the solute) to dissolve in solvent (usually a liquid) and form a solution. The solubility of a substance fundamentally depends on the solvent used, as well as temperature and pressure.

<em>hope it helps :)</em>

<em>please mark it the brainliest!</em>

7 0

3 years ago

In this reaction: Mg (s) + I₂ (s) → MgI₂ (s) If 2.68 moles of Mg react with 3.56 moles of I₂, and 1.76 moles of MgI₂ form, what

melomori [17]

Answer:

$Y=65.7\%$

Explanation:

Hello,

In this case, for the given chemical reaction, we first identify the limiting reactant by noticing that due to the 1:1 mole ratio for magnesium to iodine the reacting moles must the same, nevertheless, there are only 2.68 moles of magnesium versus 3.56 moles of iodine, for that reason, magnesium is the limiting reactant, so the theoretical turns out:

$n_{MgI_2}^{theoretical}=2.68molMg*\frac{1molMgI_2}{1molMg} =2.68molMgI_2$

Thus, we compute the percent yield as:

$Y=\frac{n_{MgI_2}^{real}}{n_{MgI_2}^{theoretical}} *100\%=\frac{1.76mol}{2.68mol} *100\%\\\\Y=65.7\%$

Best regards.

8 0

3 years ago