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TiliK225 [7]
3 years ago
7

What is alkaline and what is acidic pH

Chemistry
1 answer:
Naya [18.7K]3 years ago
7 0

Answer:

An alkaline is a substance that dissolves in water to produce hydroxyl ions (OH-)

Explanation:

The pH range of an alkaline is from 8–14.

Acidic pH ranges from 0–6.9.

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What mass of propane could burn in 48.0 g of oxygen? C3H8 + 5O2 → 3CO2 + 4H2O
Ipatiy [6.2K]

Answer:

Mass = 13.23 g  

Explanation:

Given data:

Mass of oxygen = 48.0 g

Mass of propane burn = ?

Solution:

Chemical equation:

C₃H₈ + 5O₂     →      3CO₂ + 4H₂O

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 48.0 g/ 32 g/mol

Number of moles = 1.5 mol

now we will compare the moles of propane and oxygen.

              O₂           :          C₃H₈

               5            :            1

             1.5            :          1/5×1.5 = 0.3 mol

Mass of propane burn:

Mass = number of moles × molar mass

Mass = 0.3 mol × 44.1 g/mol

Mass = 13.23 g  

6 0
3 years ago
A ridge characteristic describes a property found where ?
Marrrta [24]
A ridge characteristic describes a property found on fingernails

please mark as brainliest
6 0
3 years ago
In what order should the options appear so as to correctly reflect the order of clomiphene's mechanism of action
ad-work [718]

The order which reflect clomiphene's mechanism of action include the following:

  • Secretion of increased amount of follicle stimulating hormone (FSH) and LH (luteinizing hormone).
  • Growth of the ovarian follicle.
  • Ovulation.

<h3>What is Ovulation?</h3>

This is the process in which a mature egg is released from the ovary and clomiphene is a medication which induces it.

This is done by the steps mentioned above so as to ensure mature egg is released for fertilization.

Read more about Ovulation here brainly.com/question/17044166

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6 0
2 years ago
Si la eficiencia de una máquina de calor es del 50% significa que ?
Karolina [17]

Answer:

No toques el link

Explanation:

8 0
3 years ago
What is the mass of 3.5x10^22 molecules of C6H12O6
maw [93]
Molar C6H12O6 = 180.15 g/mol

180.15 g -------------- 6.02x10²³ molecules
?? g ------------------- 3.5x10²² molecules

( 3.5x10²²) x 180.15 / 6.02x10²³ =

=> 10.47 g


7 0
3 years ago
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