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Inessa [10]
3 years ago
6

If you try to place the compound on the pan over the flame, what could possibly happen? Explain your answer. [2 marks] anyone pl

ease help me!!:(​
Chemistry
1 answer:
Scilla [17]3 years ago
8 0

Answer:

it will probably flame up or explode or maybe start boiling

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Making models involves creating representations of complex objects or processes to help people study and understand things that
swat32
Somewhat false
observations can be made of a model of the statue of liberty, say, or in real line
6 0
3 years ago
The following data was collected when a reaction was performed experimentally in the laboratory.
Lera25 [3.4K]

Answer:

Mass = 279.23 g

Explanation:

Given data:

Number of moles of Fe₂O₃ = 3 mol

Number of moles of Al = 5 mol

Maximum amount of iron produced by reaction = ?

Solution:

Chemical equation:

Fe₂O₃ + 2Al    →     Al₂O₃  +  2Fe

Now we will compare the moles of iron with Al and iron oxide.

                          Fe₂O₃     :       Fe

                             1           :        2

                             3          :       2×3 = 6 mol

                            Al          :          Fe

                              2         :           2

                               5        :           5 mol

The number of moles of iron produced by Al are less so Al is limiting reacting and it will limit the amount of iron so maximum number of iron produced are 5 moles.

Mass of iron:

Mass = number of moles × molar mass

Mass =   5 mol  ×  55.845 g/mol

Mass = 279.23 g

 

3 0
3 years ago
How do we calculate how fast (speed) Earth is rotating on its arist
strojnjashka [21]


Speed= distance/ time
8 0
3 years ago
On a cool morning (12"C), a balloon is filled with 1.5 L of helium. By mid afternoon, the temperature has soared to 32°C. What i
ddd [48]

Answer:

1.6 L

Explanation:

Using Charle's law  

\frac {V_1}{T_1}=\frac {V_2}{T_2}

Given ,  

V₁ = 1.5 L

V₂ = ?

T₁ = 12 °C

T₂ = 32 °C  

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (12 + 273.15) K = 285.15 K  

T₂ = (32 + 273.15) K = 305.15 K  

Using above equation as:

\frac{1.5}{285.15}=\frac{V_2}{305.15}

V_2=\frac{1.5\cdot \:305.15}{285.15}

New volume = 1.6 L

8 0
3 years ago
What is one benefit and one limitation of comparative investigations
Ivan
<span>1. Seeing broader picture: determining gray areas, overlaps, and exclusions, biases, the primary focus.

2. Bias. Sources may have hidden agenda, personal discrimination conscience or unconscious and a limited view of the short term, long term effects.</span>
5 0
3 years ago
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