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ch4aika [34]
3 years ago
9

On the calendar, the full moon is shown happening on the eleventh of the month. What moon would you see around the date shown wi

th the question mark?
First Quarter

New Moon

Waxing Crescent

Waning Gibbous
Chemistry
1 answer:
Elan Coil [88]3 years ago
7 0

Answer: waning gibbous

Explanation:

Your welcome

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The substance water always has a mass ratio of 11% H to 89% O. If 5.00g of a substance containing H and O was decomposed into .2
Gre4nikov [31]

Answer:

                    No the substance is not water.

Explanation:

                   The balance chemical equation for the decomposition of water is as follow;

                                           2 H₂O = 2 H₂ + O₂

Step 1: <u>Calculate moles of H₂O;</u>

               Moles  =  Mass / M.Mass

               Moles  =  5.0 g / 18.01 g/mol

               Moles  =  0.277 moles of H₂O

Step 2: <u>Calculate Moles of O₂ and H₂ produced by 0.277 moles of H₂O:</u>

According to equation,

                        2 moles of H₂O produced  =  1 mole of O₂

So,

                  0.277 moles of H₂O will produce  =  X moles of O₂

Solving for X,

                     X =  0.277 mol × 1 mol / 2 mol

                     X =  0.138 moles of O₂

Also,

According to equation,

                        2 moles of H₂O produced  =  2 mole of H₂

So,

                  0.277 moles of H₂O will produce  =  X moles of H₂

Solving for X,

                     X =  0.277 mol × 2 mol / 2 mol

                     X =  0.227 moles of H₂

Step 3: <u>Calculate Mass of O₂ and H₂ as;</u>

For O₂:

                 Mass  =  Moles × M.Mass

                 Mass  =  0.138 mol × 31.99 g/mol

                 Mass  =  4.44 g of O₂

For H₂:

                 Mass  =  Moles × M.Mass

                 Mass  =  0.227 mol × 2.01 g/mol

                 Mass  =  0.559 g of H₂

Conclusion:

                   From conclusion it is proved that the amount of H₂ produced by decomposition of 5 g of water should be 0.559 g while in statement it is less i.e. 0.290 g.

6 0
3 years ago
Lithium reacts with chlorine to form a new substance.What other element will also with chlorine to form a new substance with sim
quester [9]

Answer:

Flourine

Explanation:

Chlorine is a member of the halogen family. Halogens are the elements that make up Group 17 (VIIA) of the periodic table, a chart that shows how elements are related to one another. They include fluorine, bromine, iodine, and astatine.

4 0
3 years ago
Louisa put a bowl of water and a bowl of sand in the sun. She put a thermometer in each bowl. Then she recorded the temperature
Helen [10]

The experiment that was carried out by Louisa goes to show us that different materials heat up at different rates.

<h3>What is the specific heat capacity?</h3>

The term specific heat capacity just goes to show us the amount of heat that must be absorbed before the temperature of an object would rise by 1 K. In this case, we can see that we have been told that the after 30 minutes, the sand had heated more than the water. This simply implies that the energy that the sand and the water absorbed was able to increase the temperature of the sand mush more than it increased the temperature of the water.

Thus we can see that the heat capacity of the sand is much less than the heat capacity of the water since the sand could be able to be heated up much faster than the the water could be heated up.

Learn more about heat capacity:brainly.com/question/28302909

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8 0
11 months ago
Determine the molarity for each of these solutions. Then lost the solutions in order of increasing molarity.
Vaselesa [24]
B.) 50g C6H1206 per 0.25L
4 0
3 years ago
In the kinetic molecular theory of gas behavior, the assumption is made that gas molecules:.
neonofarm [45]

Answer:

In the kinetic molecular theory of gas behavior; the assumption is made that gas molecules move with a kinetic energy equal to their centigrade temperature_ move rapidly in random directions: are close together in their container which exerts pressure_ are attracted to each other by strong forces.

Explanation:

4 0
1 year ago
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