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Vladimir [108]
4 years ago
8

This biome has extremely cold winters and short, mild summers. It has no trees, only low-growing plants with short root systems

because of its frozen soil
called the permafrost. It is covered by snow for most of the year. Animals that live here must have wide paws or hooves to walk through the frozen mushy.
soil. This biome is known as the_________

A. Tropical rainforest
B. Taiga
C. Deciduous Forest
D. Desert
E. Grassland
F. Tundra
Chemistry
2 answers:
Greeley [361]4 years ago
6 0
According to my calculations for this question I have gotten the answer F
irakobra [83]4 years ago
4 0
I think the answer would be F because the A has trees,B has trees,C has trees,D is very sandy,and E has no snow
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How do catalysts function? A. They protect the products from external reactions. B. They increase the activation energy of an el
tamaranim1 [39]
The answer is C. They lower the activation energy of an elementary step of a reaction
This makes the reaction rate to increase since less energy is required to make a reaction occur.
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3 years ago
What does conductivity have to do with solutions?
sergiy2304 [10]

Answer:

The relationship between conductivity and the number of ions in solution means that it can be used to measure solution concentration and give a value for Total Dissolved Solids. This means that measurements are of the total concentration of ions in solution not the concentration of any one ion.

5 0
3 years ago
Enter ionic and net equations: feso4(aq)+ na3po4(aq) arrow fe3(po4)2(s)+na2so4(aq)
stepan [7]

Answer:

<em> ionic equation : </em>3Fe(2+)(aq) + 3SO4(2-)(aq)+ 6Na(+)(aq) + 2PO4 (3-) (aq) → Fe3(PO4)2(s)+ 6Na(+) + 3SO4(2-)(aq)

<em> net ionic equation: </em>3Fe(2+)(aq)  + 2PO4 (3-)(aq) → Fe3(PO4)2(s)

Explanation:

The balanced equation is

3FeSO4(aq)+ 2Na3PO4(aq) → Fe3(PO4)2(s)+ 3Na2SO4(aq)

<em>Ionic equations: </em>Start with a balanced molecular equation.  Break all soluble strong electrolytes (compounds with (aq) beside them) into their ions . Indicate the correct formula and charge of each ion. Indicate the correct number of each ion . Write (aq) after each ion .Bring down all compounds with (s), (l), or (g) unchanged. The coefficents are given by the number of moles in the original equation

3Fe(2+)(aq) + 3SO4(2-)(aq)+ 6Na(+)(aq) + 2PO4 (3-) (aq) → Fe3(PO4)2(s)+ 6Na(+) + 3SO4(2-)(aq)

<em>Net ionic equations: </em>Write the balanced molecular equation.  Write the balanced complete ionic equation.  Cross out the spectator ions, it means the repeated ions that are present.  Write the "leftovers" as the net ionic equation.

3Fe(2+)(aq)  + 2PO4 (3-)(aq) → Fe3(PO4)2(s)

6 0
4 years ago
Score: Two or more substances that are blended together but not chemically combined make up a(n) _____. element compound mixture
olasank [31]
Two or more substances that are blended together but not chemically combined make up a mixture.
3 0
3 years ago
Which of the following processes will determine the number of atoms in a sample?
Sergio [31]

Answer: multiplying the number of moles of the sample by avagadro's number

Explanation: According to Avogadro's law, 1 mole atoms of a substance consists of avogadro's number of atoms and weighs equal to its molecular mass.

Thus 1 mole atom of a substance has =6.023\times 10^{23} atoms

x moles atom of a substance has =\frac{6.023\times 10^{23}}{1}\times x=6.023\times 10^{23}\times {x}atoms

Dividing the mass of the sample by its molar mass  gives us the number of moles.



7 0
3 years ago
Read 2 more answers
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