Please Give me Brainliest
(1) A. (weathered rock and decomposed organic remains)
(2) B. (Use more land to plant crops)
(3) D. (top soil; organic matter)
(4) C. (They decompose the remains of plants and animals and add nutrients back to the soil)
(5) C. (Physical weathering)
(6) D. (The plates that formed these mountains were once under an ocean)
(7) B. (The water from her gutter pipe was washing away the soil in her flowerbed)
(8) A. (erosion)
(9) B. (Area A was completely underwater in the past)
(10) B. (Soil #2)
(11) B. (loam)
(12) D. (sediment)
Wow that took me more than an hour well Thanks And I hope I get brainliest because I worked soo hard
Hope this helps
-Sprinkles
Answer:
8083.8ml x 1 L/1000ml x 1mole/ 24L = 194.01 moles
Explanation:
The answer would be B) Dunes. I hope you have a wonderful day :)
Answer:
The pH of 500 cm³, 0.2 mol/dm³, Ca(OH₂) is ≈ 13.6
Explanation:
The given parameters are;
Concentration of the calcium hydroxide, Ca(OH₂) = 0.2 mol/dm³
Volume of the calcium hydroxide, Ca(OH₂) = 500 cm³
Given that the calcium hydroxide, Ca(OH₂), undergoes complete ionization in water, complete dissociation, we have;
Ca(OH₂) ⇄ Ca²⁺ + 2 OH⁻
Therefore, we have;
2 moles of [OH⁻] for each mole of Ca(OH₂) which gives the concentration of [OH⁻] as
[OH⁻] = 2 × 0.2 ≈ 0.4 mol/dm³
The pH is given by the formula
pH = 14 + ㏒₁₀ [OH⁻]
pH = 14 + ㏒₁₀ (0.4) = 14 - 0.3979 = 13.6021 ≈ 13.6
The pH of the 500 cm³ 0.2 mol/dm³ Ca(OH₂) ≈ 13.6.
False, I think.
I would say it is determined by the number of electrons. The number of protons determines what element it is.
An element will try and fill it's outer shell, and so elements such as neon (a noble gas) is difficult to do anything with as it already has a full outer shell of 8 electrons. Something with 7 outer electrons, however, will be much more reactive as they will try to fill up that last space through a chemical bond.
Not sure if I explained that very well haha,
basically i would say false
