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3 years ago

Help me with number 19 and 20 please

Chemistry

1 answer:

Doss [256]3 years ago

7 0

19) it's not balanced because when adding h2 and o2 u get h2o2 not h2o
20) I'm not sure

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Question 2 (1 point)

Alexxandr [17]

Answer:

a mole have have wrong becouse i understand

4 0

2 years ago

How many moles of calcium chloride would react with 5. 99 moles of aluminum oxide?

slega [8]

There are 17.97 moles of calcium chloride would react with 5. 99 moles of aluminum oxide .

The balanced chemical equation between reaction between calcium chloride and aluminum oxide is given as,

$3CaCl_{2} (aq)+Al_{2} O_{3} (s)$ → $3CaO_{2} (s)+2Al Cl_{3} (aq)$

The molar ratio of above reaction is 3:1

It means 3 moles of calcium chloride is require to react one mole of aluminum oxide.

The number of moles of calcium chloride requires to react with 5. 99 moles of aluminum oxide = 3 × 5. 99 = 17.97 moles

The equation in which number of atoms of elements in reactant side is equal to the number of atoms of elements in product side is called balanced chemical equation .

learn more about calcium chloride

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1 year ago

Measure the mass of a truckful of grain, use:

Nimfa-mama [501]

Answer:

tons

Explanation:

8 0

2 years ago

Read 2 more answers

5 meters

Feliz [49]

Answer:

Explanation:

7 0

2 years ago

How many moles are in 9.50 x 1022 molecules of CO? Be sure to ALL work below and report your answer using the correct number of

eimsori [14]

Answer:

0.158 moles

Explanation:

We are given;

9.50 x 10^22 molecules of CO

We are required to determine the number of moles;

We need to know;

1 mole of a compound = 6.022 × 10^23 molecules

Therefore;

9.50 x 10^22 molecules of CO will be equivalent to;

= 9.50 x 10^22 molecules ÷ 6.022 × 10^23 molecules/mole

= 0.158 moles

Therefore, the number of moles are 0.158 moles

4 0

3 years ago