What biome could be characterized by large evergreen trees, acidic soil, lichens, and heavy winter snowfall?

Answers

Answer 1

Answer: The biome that could be characterized by large evergreen trees, acidic soil, lichens, and heavy winter snowfall is TAIGA. The Taiga experiences extremely cold or hot weather conditions. This is why the main seasons in the taiga are summer and winter. It is actually the largest biome in the world, and is located at the tip of Eurasia up to North America.

Answer 2

Answer:

Answer:

Taiga

Explanation:

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water is mixed with solid calcium nitrate in a beaker. write balanced net ionic equation for the reaction

Answers

When calcium nitrate is added or mixed with water, the substance would dissociate into its corresponding ions which are calcium and nitrate ions. The ionic equation would be:

Ca(NO3)2 = Ca2+ + NO3-

Hope this answers the question. Have a nice day. Feel free to ask more questions.

Answer : The net ionic equation will be,

$Ca^(2+)(aq)+2OH^(-)(aq)\rightarrow Ca(OH)_2(s)$

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The balanced ionic equation will be,

$2H_2O(aq)+Ca(NO_3)_2(aq)\rightarrow 2HNO_3(aq)+Ca(OH)_2(s)$

The ionic equation in separated aqueous solution will be,

$4H^+(aq)+2OH^(-)(aq)+Ca^(2+)(aq)+2NO_3^(-)(aq)\rightarrow Ca(OH)_2(s)+2H^+(aq)+2NO_3^(-)(aq)$

In this equation, $H^+\text{ and }NO_3^-$ are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

$Ca^(2+)(aq)+2OH^(-)(aq)\rightarrow Ca(OH)_2(s)$

Explain the four quantum numbers

Answers

Principal (shell) quantum number - n

Describes the energy level in the atom (1 through 7)The maximum number of electrons in n is 2n2
2. Angular (subshell) quantum number - l
Describes the sublevel in nEach energy level has n sublevels
3. Magnetic quantum number - m
Describes the orbital within ls has 1 orbitalp has 3 orbitalsd has 5 orbitalsf has 7 orbitals
4. Spin quantum number - s
Describes the spin of the electrons in an orbital.Electrons in the same orbital must have oppisite spins.Possible spins are clockwise or counterclockwise.

Ernest Rutherford's gold-foil experiment showed which of the following?

Answers

Ernest Rutherford's gold-foil experiment showed the density of atoms.
The experiment proved that most of an atom is empty space with a very small positively charged nucleus in the middle.
So, from the given statements he following is true:
Ernest Rutherford's gold-foil experiment showed the existence of a dense, positively charged center in an atom.

What is true of the rate of radioactive decay? A. The rate is constant. B. The rate is continuously accelerating. C. The rate is continuously decelerating. D. The rate is exponentially accelerating.

Answers

The truest of the rate of radioactive decay is that the rate is exponentially accelerating. The answer is letter D. The rate is constant, the rate is continuously accelerating, the rate is continuously decelerating do not answer the question above.

Answer:

its a) the rate of decay is constant.

Semantics is the study of:

Answers

relationships between words and how we construct meaning.

Which of the following has the greatest effect on colligative properties?A. Epsom salt (MgSO4)
B. Calcium chloride (CaCl2)
C. Potassium Iodide (KI)
D. Glucose (C6H12O6)

Answers

Answer:

Option B. Calcium chloride (CaCl₂)

Explanation:

The colligative properties depend on the concentration of particles (molecules or ions) of solute dissolved and not on the identity of the solute.

For your reference the colligative properties are: i) boiling point increase, ii) freezing point depression, iii) vapor pressure lowering, and iv) osmotic pressure.

When the solute is a ionic compound the ionization yields several ions, so for ionic solutes you must predict first the number or ions formed per unit of compound and then predict the effect on the colligative properties: the greater the number of ions per unit of compound the greater the effect on colligative properties.

So, just set the ionization equations for each compound:

MgSO₄ (aq) → Mg²⁺ (aq) + SO₄²⁻ (aq): 2 ions

CaCl₂ (aq) → Ca²⁺ (aq) + 2Cl⁻ (aq) : 3 ions

KI (aq) → K⁺ (aq) + I⁻ (aq): 2 ions

C₆H₁₂O₆ is a molecular compound, not a ionic one, so it remains s 1 molecule.

Then, since calcium chloride, CaCl₂, produces the greater number of ions it is the solute that productes the greatest effect on colligative properties.

Answer:

D. Calcium chloride (CaCl2)

Explanation:

Founder's Education/ Educere Answer

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How many grams are there in 3.5 moles of H20

Cuantas moléculas de oxigeno se producen por la descomposición de 28.5 g de H2O2 (masa molecular = 34.0g/mol) de acuerdo a la ecuación 2H2O2(l) → 2H2O(l)+O2(g)