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Tatiana [17]
3 years ago
8

When a solution is considered to have a high concentration of hydrogen ions (H+) is also considered to be?

Chemistry
1 answer:
charle [14.2K]3 years ago
6 0

Answer: option A. acidic

Explanation: acidic solution is characterized by the presence of Hydrogen ion.

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Please help this is so hard 1: Why is the sky blue?
kolezko [41]

Answer:

1. As white light passes through our atmosphere, tiny air molecules cause it to 'scatter'. Therefore, blue light is scattered more than red light and the sky appears blue during the day.

2. We can see the moon during the day for the same reason we see the moon at night. The surface of the moon is reflecting the sun's light into our eyes. When we see the moon during the day it's because the moon is in the right spot in the sky and it's reflecting enough light to be as bright, or brighter, than the sky.

3. At eight pounds per gallon, that's another 38,593,169,564 pounds of water in the air. Add it all up, and the total weight of our sky is 12,107,415,382,493,169,564 pounds, more than 12 quintillion pounds!

4. 5.972 × 10^24 kg

5. Four forces keep an airplane in the sky. They are lift, weight, thrust and drag. Lift pushes the airplane up.

6. Water is wet, in the sense of being a liquid which flows easily, because its viscosity is low, which is because its molecules are rather loosely joined together.

7. Rainbows are formed when sunlight is scattered from raindrops into the eyes of an observer. The lower the sun in the sky the more of an arc of a rainbow the viewer will see. Rain, fog or some other source of water droplets must be in front of the viewer.

8. Birds can sit on power lines and not get electric shocks because the electricity is always looking for a way to get to the ground. The birds are not touching the ground or anything in contact with the ground, so the electricity will stay in the power line.

Explanation:

4 0
3 years ago
Read 2 more answers
When you mixed 20 grams of magnesium and an excess of nitric acid, 1.7 grams of hydrogen was actually produced. What is the perc
Kitty [74]
Based on the balanced chemical reaction presented above, every mole of magnesium (Mg) yields one mole of diatomic hydrogen (H2). When converted to masses, every 24.3 grams of magnesium yields 2 grams of hydrogen. 

From the given, there are 20 grams of magnesium available for the reaction. With this amount, the expected yield of hydrogen is 1.646 grams. To calculate the percent yield, divide the actual yield to the hypothetical yield.

*The case is impossible because the actual yield is greater than the theoretical yield.

If we assume that there had been a typographical error and that the actual yield is 0.7 grams instead of 1.7 grams, the percent yield becomes 42.5%. Thus, the answer is letter E. 
6 0
3 years ago
Read 2 more answers
What is water condensing on a cold glass an example of? and explain
Nana76 [90]
The answer is
b)state of matter 

because water is changing from a gas to liquid
4 0
3 years ago
Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 1.74 g of butane is
xeze [42]

Answer : The mass of CO_2 produced will be, 5.3 grams.

Explanation : Given,

Mass of C_4H_{10} = 1.74 g

Mass of O_2 = 11 g

Molar mass of C_4H_{10} = 58 g/mole

Molar mass of O_2 = 32 g/mole

Molar mass of CO_2 = 44 g/mole

First we have to calculate the moles of C_4H_{10} and O_2.

\text{Moles of }C_4H_{10}=\frac{\text{Mass of }C_4H_{10}}{\text{Molar mass of }C_4H_{10}}=\frac{1.74g}{58g/mole}=0.03moles

\text{Moles of }O_2=\frac{\text{Mass of }O_2}{\text{Molar mass of }O_2}=\frac{11g}{32g/mole}=0.34moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

2C_4H_{10}+13O_2\rightarrow 8CO_2+10H_2O

From the balanced reaction we conclude that

As, 2 moles of C_4H_{10} react with 13 mole of O_2

So, 0.03 moles of C_4H_{10} react with \frac{13}{2}\times 0.03=0.195 moles of O_2

From this we conclude that, O_2 is an excess reagent because the given moles are greater than the required moles and C_4H_{10} is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of CO_2.

As, 2 moles of C_4H_{10} react to give 8 moles of CO_2

So, 0.03 moles of C_4H_{10} react to give \frac{8}{2}\times 0.03=0.12 moles of CO_2

Now we have to calculate the mass of CO_2.

\text{Mass of }CO_2=\text{Moles of }CO_2\times \text{Molar mass of }CO_2

\text{Mass of }CO_2=(0.12mole)\times (44g/mole)=5.3g

Therefore, the mass of CO_2 produced will be, 5.3 grams.

5 0
3 years ago
A chemist obtains a 0.300 M solution of HCI and adds 10.0 mL of the HCI to CaCO3 how many moles of HCI did she add?
Salsk061 [2.6K]

Answer:

Number of moles = 0.003 mol

Explanation:

Given data:

Molarity of HCl = 0.300 M

Volume = 10.0 mL (0.01 L)

Number of moles of HCl added = ?

Solution:

Formula:

Molarity = number of moles / volume in litter

Number of moles = Molarity ×  volume in litter

Number of moles =  0.300 mol/L × 0.01 L

Number of moles = 0.003 mol

4 0
3 years ago
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