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Virty [35]
1 year ago
15

When magnesium reacts with hydrochloric acid, hydrogen gas is produced. The amount of gas produced is dependent upon the concent

ration of hydrochloric acid. Below is the data for a reaction with 1 molar hydrochloric acid. Determine which of the choices shows possible data for a reaction with 2 molar hydrochloric acid. time (mins) 0 123TLON8S 4 5 6 7 9 10 1 M acid hydrogen (cm³) ARANY 17 ATE 230VEL TEEN 0 14 24 31 36 41 44 46 47 48 48​

Chemistry
1 answer:
velikii [3]1 year ago
7 0

Answer:

why do you need human rights ! write in a sentence

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On the space shuttle, lithium hydroxide is produced from lithium oxide and water. The lithium hydroxide then reacts with the exh
Ratling [72]

Answer:

6,2g of CO₂

Explanation:

Based on the reactions:

Li₂O(s) + H₂O(g) → 2LiOH(s)

LiOH(s) + CO₂(g) → LiHCO₃(s)

2,6g of Li₂O and 1,3g of H₂O are:

2,6g × ( 1mol / 29,88g) = 0,087 moles

1.3g × ( 1mol / 18,01g) = 0,072 moles

That means limiting reactant is H₂O. The moles produced of LiOH are:

0,072 moles of H₂O × ( 2mol LiOH / 1mol H₂O) =<em> 0,14 moles of LiOH</em>

Thus, the maximum CO₂ that can react are 0,14 moles of CO₂, in grams

0,14 moles CO₂ × (44,01g / 1mol) = <em>6,2g of CO₂</em>

I hope it helps!

6 0
3 years ago
Calculate the average atomic mass of boron (B), which has two isotopes: B-10 with 19.9% natural abundance, and B-11 with 80.1% a
lina2011 [118]

Answer:

The average atomic mass of boron is found to be  

10.80

Explanation:

also u answered it urself

6 0
3 years ago
Which of the following is an example of a chernical change?
matrenka [14]

Answer:

the chemical change occur in burning paper.

boiling water does not make any chemical change

melting gold "

dissolving sugar in water "

in these examples the reactant remains as the same , even if you melt gold it is gold itself, it only change its state.

7 0
3 years ago
Read 2 more answers
Which of the following pairs of elements is most likely to form an ionic compound?
dmitriy555 [2]

Answer:

The correct option is B.

Explanation:

Ionic bond are usually formed between a metal and a non metal. The metal usually acts as the electron donor while the non metal acts as the electron acceptor, that is, the metal give away electrons while the non metal accept the electrons. In the options given in this question, it is only the pairs in option B, that is qualify for ionic bond, this is because it consist of a metal and a non metal.

5 0
3 years ago
What is the number of sub shells in the 3rd main shell?​
valkas [14]
The answer would be 2
3 0
2 years ago
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