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tatiyna
3 years ago
11

Which of the following is not a savanna? a. Cerrado b. Pampas C. Llanos d. Serengeti

Chemistry
2 answers:
Triss [41]3 years ago
4 0
The answer is option B: Pampas
soldier1979 [14.2K]3 years ago
3 0

Answer:

Answer is B Pampas

Explanation:

Edge2020

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18. Which hydrocarbon has more than one possible
emmainna [20.7K]

See here question has answer in itself

The structural isomerism starts always from but word root .

So butane has one and most among all as rest three have none .

The two isomers are

  • n-butane
  • iso-butane
7 0
1 year ago
Problem Page Suppose 25.1g of barium nitrate is dissolved in 200.mL of a 0.50 M aqueous solution of ammonium sulfate. Calculate
melomori [17]

Answer:

1.26 M

Explanation:

The ion nitrate is NO₃⁻ and the Barium is from group 2 so it forms the ion Ba²⁺, so the barium nitrate has the formula: Ba(NO₃)₂. The molar masses are: Ba: 137 g/mol, N = 14 g/mol, O = 16 g/mol, so the molar mass of barium nitrate is:

137 + 2x(14 + 3x16) = 199 g/mol

The number of moles is the mass divided by the molar mass, so:

n = 25.1/199 = 0.126 mol of Ba(NO₃)₂

In 1 mol of the salt, there are 2 moles of NO₃⁻, so the number of moles of nitrate is 0.252 mol. Nitrates formed with ammonium (that can react when the solid dissolves) and with elements from group 1 and 2 are completely soluble in water. So, the moles of nitrate will remain 0.252 mol.

The molarity is the number of moles divided by the volume (0.2 L):

[NO₃⁻]= 0.252/0.2 = 1.26 M

3 0
3 years ago
Helppp meee plzzz plzzzz<br> Helppp
Rus_ich [418]

Answer:F =MAX

Explanation:I did that

7 0
3 years ago
Give an example of an element, a molecule that has the element in it, and a mixture with the molecule.
NISA [10]

Answer:

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8 0
3 years ago
What happens to the atomic radius of elements as you move from left to right across a period?​
Katyanochek1 [597]

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