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rusak2 [61]
3 years ago
9

PLEASE HELP!!! ILL MARK AS BRAINIEST AND GIVE YOU 30 POINTS!!!

Chemistry
1 answer:
sweet [91]3 years ago
6 0

Answer:

did u get it yet

Explanation:

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What will Knowledge of chemistry enable you to do ?
vekshin1
The knowledge will help me in:
<span>- explain the natural world, specifically the interaction between substance that caused an occurrence within our environment
- career opportunities, because all company that produce consumable products will need a profound knowledge in chemistry
- informed citizens, so i could make a better decision for my own health</span>
3 0
3 years ago
Write the balanced equation and determine the information requested in each of the following.
Elena L [17]

Answer:

See explanation.

Explanation:

Hello!

In this case, we can proceed as follows:

1. Here, the undergoing chemical reaction is:

C_2H_2+\frac{5}{2} O_2\rightarrow 2CO_2+H_2O

Thus, the moles and mass of water turn out:

n_{H_2O}=20.0kgC_2H_2*\frac{1000gC_2H_2}{1kgC_2H_2} *\frac{1molC_2H_2}{26.04gC_2H_2} *\frac{1molH_2O}{1molC_2H_2}=768molH_2O\\\\m_{H_2O}=768molH_2O*\frac{18.02gH_2O}{1molH_2O}=13,840 gH_2O

2. Here, the undergoing chemical reaction is:

CaCO_3+2HCl\rightarrow CaCl_2+H_2O+CO_2

So the required moles of HCl and the yielded of water are:

n_{CaCO_3}=2.6molHCl*\frac{1molCaCO_3}{2molHCl}=1.3molCaCO_3\\\\ n_{H_2O}=2.6molHCl*\frac{1molH_2O}{2molHCl}=1.3molH_2O

3. Here, the undergoing chemical reaction is:

Al_2O_3+3H_2SO_4\rightarrow Al_2(SO_4)_3+3H_2O

Now, we apply each mole ratio obtain:

A.

n_{H_2SO_4}=2.6molAl_2O_3*\frac{3molH_2SO_4}{1molAl_2O_3} =7.8molH_2SO_4

B.

n_{Al_2(SO_4)_3}=2.6molAl_2O_3*\frac{1molAl_2(SO_4)_3}{1molAl_2O_3} =2.6molAl_2(SO_4)_3

Best regards!

4 0
3 years ago
Where would I find the elements with 8 valence electrons which have no charge?​
Ierofanga [76]

Answer:

No charge, meaning that they have a stable electronic configuration.

It is mostly found in group 0, also known as noble gases.

4 0
4 years ago
Describe how a comet changes as it travels through space?
omeli [17]
It begins to form ice and also on its tail that is ice mixed with rocks and junk but if t where to crash on earth it would come through the atmosphere causing in to burn at amazing speeds.  <span />
3 0
3 years ago
Who said
Ymorist [56]

Awnser: The awnser would be (D) Thomas

Explanation:

Use Quizlet

7 0
3 years ago
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