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Snezhnost [94]
3 years ago
15

In which terrestrial biome would you expect to rake leaves? Question 5 options: taiga (coniferous forest) savanna temperate deci

duous forest tundra
Chemistry
2 answers:
seropon [69]3 years ago
3 0

The correct answer is temperate deciduous forest.

Temperate deciduous forests are situated in the mid-latitudes, in between Polar Regions and tropics having average annual temperature about 10°C, rainfall between 750 to 1500 mm. There are four distinct seasons and the vegetation includes mostly broad leaved trees such as maple, beech, oak,  hickory and chestnut.  Leaves fall in winter after changing color in autumn. Leaves grow back in spring. This is an adaption to avoid to live in cold winters.

Simora [160]3 years ago
3 0

The correct answer is C. Temperate deciduous forest

Explanation:

The temperate deciduous forest is a biome found in North America and certain areas of Europe and Asia. This biome as all forest is dominated by trees; additionally, the temperate deciduous forest is different from other ecosystems because this goes through the four seasons every year. This implies the leaves of trees change their color, later they fall and they are renewed. According to this, the temperate deciduous forest is the biome in which you would expect to rake leaves because it is in this biome the leaves of trees fall every year.

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How many molecules are in 1.95 moles of water?
OLEGan [10]
Water has a molar mass of 18.015 g/mol . This means that one mole of water molecules has a mass of 18.015 g . So, to sum this up, 6.022⋅1023 molecules<span> of water will amount to 1 mole of water, which in turn will have a mass of 18.015 g . 2.7144moles H2O ⋅</span>6.022<span>⋅1023molec.1mole H2O =1.635⋅1024molec.</span>
3 0
3 years ago
Read 2 more answers
10. Which of state of matter has no definite shape but does have a definite volume?
il63 [147K]

Answer:

Gas, has no shape but does take up volume

4 0
4 years ago
At 25.0°c, a solution has a concentration of 3.179 m and a density of 1.260 g/ml. the density of the solution at 50.0°c is 1.249
oksano4ka [1.4K]

Answer: -

3.151 M

Explanation: -

Let the volume of the solution be 1000 mL.

At 25.0 °C, Density = 1.260 g/ mL

Mass of the solution = Density x volume

= 1.260 g / mL x 1000 mL

= 1260 g

At 25.0 °C, the molarity = 3.179 M

Number of moles present per 1000 mL = 3.179 mol

Strength of the solution in g / mol

= 1260 g / 3.179 mol = 396.35 g / mol (at 25.0 °C)

Now at 50.0 °C

The density is 1.249 g/ mL

Mass of the solution = density x volume = 1.249 g / mL x 1000 mL

= 1249 g.

Number of moles present in 1249 g = Mass of the solution / Strength in g /mol

= \frac{1249 g}{396.35 g/mol}

= 3.151 moles.

So 3.151 moles is present in 1000 mL at 50.0 °C

Molarity at 50.0 °C = 3.151 M

7 0
3 years ago
Which of the following is a possible set of quantum numbers for an electron (n,l,m0,ms) ?
Mashutka [201]

Answer is: (3, 2, 0, -1/2).

The principal quantum number (n) is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.

For principal quantum number n=3:  

1) azimuthal quantum number (l) can be l = 0...n-1:  

l = 0, 1, 2.  

The azimuthal quantum number determines its orbital angular momentum and describes the shape of the orbital.  

2) magnetic quantum number (ml) can be ml = -l...+l.  

ml = -2, -1, 0, +1, +2.

Magnetic quantum number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.  

3) the spin quantum number (ms), is the spin of the electron.  

ms = +1/2, -1/2.  

(1, 1, 0, +1/2)  is not correct because orbital quantum number cannot be l = 1 for n = 1.

(2, 1, 2, +1/2)  is not correct because magnetic quantum number cannot be ml = 2 for orbital quantum number l = 1.

(3, -2, 1, -1/2) is not correct because orbital quantum number cannot be l = -2 for principal quantum number n = 3.

5 0
4 years ago
A student places an object on a balance. Which measurement might the student record based on the balance reading? A. 2.4 kilogra
gtnhenbr [62]
A would be the correct answer
8 0
2 years ago
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