During a storm, a tree fell over into a river. What might happen to this tree?

What is a Metonic cycle? How does this influence when we see full moons?

vivado [14]

Answer: A tropical year is longer than 12 lunar months and shorter than 13 of them. The arithmetical equation

12x12 + 7x13 = 235

allows it to be seen that a combination of 12 'shorter' (12 months) years and 7 'longer' (13 months) years will be equal to 19=12+7 solar years.

Explanation:

6 0

2 years ago

In Ontario, some electricity comes from coal-burning generators. Coal is a natural form of carbon that has a large amount of sul

irinina [24]

Answer:

a)

$C(s)+O_{2}(g) \rightarrow CO_{2}(g)$

$S(s)+O_{2}(g) \rightarrow SO_{2}(g)$

b)

Sulphurdioxide

c)

$SO_{2}(g) + H_{2}O(l) \rightarrow H_{2}SO_{3}(l)$

$SO_{2}(g) + \frac{1}{2}O_{2} \rightarrow SO_{3}(g)$

d)

Incomplete combustion produce harmful gases.

Explanation:

a)

Carbon reacts with atmospheric oxygen to form carbondioxide as well as sulphur dioxide.

The chemical equations are as follows.

$C(s)+O_{2}(g) \rightarrow CO_{2}(g)$

$S(s)+O_{2}(g) \rightarrow SO_{2}(g)$

b)

Sulfur dioxide is very harmful to the environment to cause acid rains.

This harmful gas mix with rain water to form sulphuric acid.

c)

The balanced chemical equation for the reaction that produces harmful environmental effects is as follows.

$SO_{2}(g) + H_{2}O(l) \rightarrow H_{2}SO_{3}(l)$

$SO_{2}(g) + \frac{1}{2}O_{2} \rightarrow SO_{3}(g)$

$SO_{3}(g) +H_{2}O(l) \rightarrow H_{2}SO_{4}(l)$

d)

In the absence of proper amount of oxygen required for combustion, incomplete combustion will take place which will result in formation of more carbondioxide an other harmful gases.

4 0

2 years ago

What is a type of science that studies Earth and space

posledela

Geology and astronomy are two types of earth science. Geology is the study of rocks and minerals and astronomy is the study of space.

3 0

3 years ago

In the periodic table, the period number indicates

Mariulka [41]

A. the number dots shown on the lewis dot diagrams for the element in the period

3 0

3 years ago

Read 2 more answers

Consider the following system at equilibrium. CaCO3(s) Double headed arrow. Ca2 (aq) CO32â€""(aq) The addition of which compound

Dominik [7]

The compound that has been capable to shift the equilibrium with common ion effect has been $\rm \bold{Na_2CO_3}$ . Thus, option D is correct.

The complete equation for the decomposition of calcium carbonate has been:

$\rm CaCO_3\rightleftharpoons Ca^2^+\;+\;CO_3^2^-$

The equilibrium has been the state in the reaction, when the number of products and has been equivalent to the number of reactants. The increase or decrease in the concentration of any of the reactant or product results in the shift in the equilibrium.

For the given reaction, the addition of Calcium or carbonate ions to the solution results in the increase in the product concentration with the common ion effect, and thereby shifts the equilibrium condition.

The ions liberated by the following compounds has been:

$\rm CCl_4\;=\text{not dissolved}\\CO_2\;+\;H_2O\leftrightharpoons CO_3^-\;+\;H^+\\CuSO_4\leftrightharpoons Cu^2^+\;+\;SO_4^2^-\\Na_2CO_3\leftrightharpoons 2\;Na^+\;+\;CO_3^-$

The compound, that has been capable of liberating the carbonate ions in the medium has been $\rm \bold{Na_2CO_3}$ . Thus, it results in the shift of the equilibrium due to common ion effect. Hence, option D is correct.

For more information about common ion effect, refer to the link:

brainly.com/question/4090548

6 0

2 years ago