All categories

3 years ago

Please help ————//-//

Chemistry

2 answers:

Rashid [163]3 years ago

8 0

It’s B Since all soils contain weathered rock!

grandymaker [24]3 years ago

6 0

Probably b because soil can’t be the exact same and so that cancels out a and d

You might be interested in

Are sperm and egg cells exact copies of the plant cell

vfiekz [6]

Answer:

Explanation:

thats scientifically impossible

5 0

3 years ago

Animals can change the energy in food into energy the animals can use. What type of energy is in the food before the animals cha

SVEN [57.7K]

D. Light energy is the right answer

7 0

3 years ago

According to vsepr theory the molecular geometry for ch3+ is

CaHeK987 [17]

According the VSEPR theory the molecular geometry for CH3+ is triagonal planar

8 0

3 years ago

Read 2 more answers

Part III.The two reactions involved in quantitatively determining the amount of iodate in solution are: IO3-(aq) 5 I-(aq) 6 H (a

slega [8]

Answer:

$\large \boxed{\math{\dfrac{\text{6 mol thiosulfate}}{\text{1 mol iodate}}}}$

Explanation:

The I₂ is the common substance in the two equations.

(1) IO₃⁻ + 5I⁻ + 6H⁺ ⟶ 3I₂ + 3H₂O

{2) I₂ + 2S₂O₃²⁻ ⟶ 2I⁻ + S₄O₆²⁻

From Equation (1), the molar ratio of iodate to iodine is

$\dfrac{\text{I}_{2}}{\text{IO}_{3}^{-}} = \dfrac{3}{1}$

From Equation (2), the molar ratio of iodine to thiosulfate is

$\dfrac{\text{S$_{2}$O}_{3}^{2-}}{\text{I}_{2}} = \dfrac{2}{1}$

Combining the two ratios, we get

$\text{Stoichiometric factor} = \dfrac{\text{S$_{2}$O}_{3}^{2-}}{\text{IO}_{3}^{-}} = \dfrac{\text{S$_{2}$O}_{3}^{2-}}{\text{I}_{2}} \times \dfrac{\text{I}_{2}}{\text{IO}_{3}^{-}} = \dfrac{2}{1} \times \dfrac{3}{1} = \mathbf{\dfrac{6}{1}}\\\\\text{The stoichiometric factor is $\large \boxed{\mathbf{\dfrac{\text{6 mol thiosulfate}}{\text{1 mol iodate}}}}$}$

7 0

3 years ago

Which of the following correctly describes one way that photosynthetic plants are involved in the carbon cycle? Choose 1 answer:

brilliants [131]

Answer:

The correct answer is - (Choice A) A Photosynthetic plants can move carbon from the atmosphere into an ecosystem’s food web.

Explanation:

Photosynthesis is the process performed by photosynthetic or green plants in presence of light atmospheric carbon dioxide and water converted into glucose (6 carbon compound) and oxygen.

This glucose or sugar is utilized by the plants that are producers in the ecosystem food web. These producers are fed by consumers and carbon molecules transfer from all the trophic levels in the food chain or food web in the process.

7 0

3 years ago