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3 years ago

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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Someone please help with answers and explanations please (: !!!

Sedbober [7]

Answer: Question 8) 0.45 mole NaCl

Question 9) 1.7 moles Fe2+

Question 10) 9.52 moles Fe2+

Explanation: solution attached

4 0

3 years ago

Mixture containing 50 grams of carbon and 75 grams of oxygen is sealed in a flask. the total mass of the system is 225 grams. th

GuDViN [60]

The mass is 225 grams

6 0

3 years ago

10.

Ugo [173]

Answer:

Density, $\rho=24.68\ g/cm^3$

Explanation:

Mass of a marble slab is 38.6 kg 38600 grams

The dimensions of the marble is 17 cm×23 cm×4 cm

We need to find its density. Mass per unit volume equals density. So,

$\rho=\dfrac{m}{V}\\\\\rho=\dfrac{m}{lbh}\\\\\rho=\dfrac{38600\ g}{(17\times 23\times 4)\ cm^3}\\\\\rho=24.68\ g/cm^3$

So, the density of the marble slab is $24.68\ g/cm^3$

5 0

4 years ago

What is the concentration (M) of a solution with a pH of 9.52 ?

masya89 [10]

Answer:

[H⁺] = 3.02 x 10⁻¹⁰M

Explanation:

Given parameters:

pH of the solution = 9.52

Unknown:

Concentration of the solution

Solution

There is a relationship between the pH and concentration of a solution.

pH = -log₁₀[H⁺]

The unknown here is [H⁺],

Now making it the subject of the formula

[H⁺] = Inverse log₁₀(-pH)

[H⁺] = Inverse log₁₀(-9.52)

[H⁺] = 3.02 x 10⁻¹⁰M

6 0

4 years ago

Which of the following is a chemical property of a sheet of paper?

Tomtit [17]

Answer:

Explanation:

Flammability is a chemical property. The paper crumbling would be a physical property. The inability to attract a magnet or conduct electricity would be considered electrical properties

3 0

3 years ago