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timofeeve [1]
3 years ago
11

In the fishbowl,the glass,water,rocks,and plastic plants are in thermal equilibrium.this situation means the temperature of the

rocks is
Chemistry
2 answers:
uysha [10]3 years ago
8 0
Equal to the temperature of the glass, water, and plastic plants.
If two or more objects are in thermal equilibrium, they are at the same temperature.
diamong [38]3 years ago
5 0

Answer:

The temperature of the rock is the same of the temperature of the other elements (glass, water and plastic plants).

Explanation:

Thermal equilibrium occurs where there is no more heat change inside the system.

Heat change occurs by the difference of temperature: the heat flows from hot to a cold body. So, if there is thermal equilibrium, it means that all bodies are at the same temperature.

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What is the molar mass of Fe?
Ugo [173]
The molar mass of Fe would be 55.8450.
5 0
2 years ago
2 NaCL + CaO = CaCL2 + Na2O
Naily [24]

222 grams of calcium chloride is produced.

<h3><u>Explanation</u>:</h3>

The mole concept and the chemical equation are very much closely related with each other. In the chemical reaction, the compounds or elements in both sides are balanced according to the number of atoms of each side of the reaction. So from there we can easily find the amount of reactant reacts to produce desired product.

Here we can see that 2 moles of sodium chloride produces 1 mole of calcium chloride.

So, 4 moles of sodium chloride will produce 2 moles of calcium chloride.

Now, atomic weight of calcium =40.

Atomic weight of chlorine =35.5.

So,the molecular weight of calcium chloride = 40+ 35.5\times2

=111.

It means, 1 mole of calcium chloride weighs 111 grams.

So 2 moles of calcium chloride weighs 111\times2 grams = 222 grams.

7 0
3 years ago
What is the scientific method?
ohaa [14]
C. a scientific approach to answering questions
6 0
3 years ago
Read 2 more answers
the reaction of Al with HCl to produce hydrogen gas. What is the pressure of H2 if the hydrogen gas collected occupies 14 L at 3
juin [17]

Answer:

Pressure for H₂ = 11.9 atm

Option 5.

Explanation:

We determine the complete reaction:

2Al(s) +  6HCl(aq) → 2AlCl₃(aq) + 3H₂(g)

As we do not know anything about the HCl, we assume that the limiting reactant is the Al and the acid is the excess reagent.

Ratio is 2:3.

2 moles of Al, can produce 3 moles of hydrogen

Therefore 4.5 moles of Al must produce (4.5 . 3) / 2 = 6.75 moles

Now we can apply the Ideal Gases law to find the H₂'s pressure

P . V  = n . R . T → P = (n . R .T) / V

We replace data: (6.75 mol . 0.082L.atm/mol.K . 300K) / 14L

Pressure for H₂ = 11.9 atm

6 0
3 years ago
Read 2 more answers
What are the major organic products are formed when the following compounds react with methylmagnesium bromide (CH3MgBr), follow
Sliva [168]

Answer:

Major organic products are- (a) propan-1-ol and (b) 2-methylpropan-2-ol

Explanation:

methyl magnesium bromide gives nucleophilic addition reaction with carbonyl group. Because methyl magnesium bromide is a strong nucleophile and carbonyl group is a strong electrophilic center.

Propanal contains an aldehyde group and propanone contains a ketone group. hence they both give nucleophilic addition with methyl magnesium bromide.

Dilute acid is added to protonate the alkoxide produced during nucleophilic addition.

Reactions are shown below.

6 0
3 years ago
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