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timofeeve [1]
3 years ago
10

True or false acids have ph level below 7

Chemistry
2 answers:
coldgirl [10]3 years ago
5 0
True, if it is a pH below 7 its an acid but if the pH is above 7 its an alkaline and if its 7 its neutral
schepotkina [342]3 years ago
4 0
True , cause 7 would be neutral and above seven isnt
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An industrial process of producing ammonia gas runs with a 74.0% yield. How many kilograms of ammonia gas will be produced in th
Tcecarenko [31]

Answer:

37.1 kilograms of ammonia gas will be produced in this process

Explanation:

The percentage yield of the reaction is given by:

(Yield)\%=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100

According to question

The percentage yield of the given industrial process = 74.0%

The given theoretical yield of ammonia gas = 50.1 kg

The experimental yield of ammonia gas = x

The percentage yield of the reaction is calculated a:

74.0\%=\frac{x}{50.1 kg}\times 100

Solving for x, we get:

x = 37.074 kg\approx 37.1 kg

37.1 kilograms of ammonia gas will be produced in this process

4 0
3 years ago
How many moles in 16.012 g
olga_2 [115]
If you want you can repost this question with a picture but I need to see it in order to help you , or you can read the picture I added for you

5 0
3 years ago
Samuel tripped while playing basketball and skinned his knee on the concrete. Many of the skin cells on that knee were killed or
morpeh [17]

Answer:

D. Existing skin cells near the injury reproduced to make new cells.

8 0
3 years ago
Write the symbol for every chemical element that has an atomic number less than 13 and atomic mass greater than 19.3 u
emmainna [20.7K]

Answer:

The symbol of each element is, Ne, Na, Mg, and Al.

Explanation:

Below is the list of elements that has an atomic mass of less than 19.3 u.

The atomic mass of Neon is 20.1797 u and the atomic number is 10.

The atomic mass of Sodium is 22.989769 u and the atomic number is 11.

The atomic mass of Magnesium is 24.305 u and the atomic number is 12.

The atomic mass of Aluminium is 26.981539 u and the atomic number is 13.

Here, the symbol of each element is, Ne, Na, Mg, and Al.

3 0
4 years ago
Which element has a grater atomic radius ?phosphorus or bismuth?
LuckyWell [14K]

According to periodic trends, bismuth has the greatest atomic radius.

6 0
3 years ago
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