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3 years ago

Which is a substance fruit salad granola cereal spaghetti or table salt

Chemistry

2 answers:

sweet-ann [11.9K]3 years ago

5 0

Table salt is a substance

Fofino [41]3 years ago

3 0

Table salt. It is a specific molecule: NaCl. All of those other food items have way too many kinds of molecules in them to be called a substance.

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How many liters of oxygen are required to react completely with 14.8 mol of Al?

Bond [772]

Answer:

296 L

Explanation:

We will need a balanced equation with moles, so let's gather all the information in one place.

4Al + 3O₂ ⟶ 2Al₂O₃

n/mol: 17.4

1. Moles of O₂

$n = \text{17.4 mol Al}\times \dfrac{\text{3 mol O}_{2}}{\text{4 mol Al}}= \text{13.05 mol O}_{2}$

2. Volume of O₂

You haven't given the conditions at which the volume is measured, so I assume it is at STP (0 °C and 1 bar).

At STP the molar volume of a gas is 22.71 L.

$V = \text{13.05 mol}\times \dfrac{\text{22.71 L}}{\text{1 mol }}= \textbf{296 L}$

8 0

2 years ago

The Rio Grande river flows through the South Texas Plains ecoregion of Texas. The river is a major source of water for cities an

mylen [45]

Answer:

What are the answer choices

Explanation:

7 0

2 years ago

Read 2 more answers

A force is applied but nothing happens

Lana71 [14]

If a force is applied but nothing happens, then it means that the forces are balanced. Being at such state, <span>equal forces are acting on an object in opposite directions. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>

7 0

2 years ago

An adult mosquitoes lifespan is about 16 days how many minutes is that

AVprozaik [17]

The answer is 23, 040 minutes. To solve this you can start by changing days in to hours. We know that there are 24 hours in a day. To find how many hours are in 16 days you multiply 24 by 16 which is 384. Next you must find out how many minutes are in 384 hours. we know there are 60 minutes per hour. To find how many minutes are in 384 hours, you multiply 384 by 60. To this you get 23, 040 which is your answer.

3 0

2 years ago

If 3.3167 moles of Al are produced, how many moles of<br> AlCl3 were reacted?<br> I

tresset_1 [31]

Answer:

3.3167 moles Of AlCl3

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

3Ca + 2AlCl3 —> 3CaCl2 + 2Al

From the balanced equation above,

2 moles of AlCl3 reacted to produce 2 moles of Al.

Finally, we shall obtained the number of moles of AlCl3 that reacted to produce 3.3167 moles of Al as follow:

From the balanced equation above,

2 moles of AlCl3 reacted to produce 2 moles of Al.

Therefore, 3.3167 moles Of AlCl3 will also react to produce 3.3167 moles of Al.

Thus, 3.3167 moles Of AlCl3 is needed for the reaction.

8 0

3 years ago