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3 years ago

What does a habitat and a niche have in common

1 answer:

3 0

They are all charectirized by Ecological threats, such as environmental destruction, Biotope, or the totality of species within the ecosystem, Biome, which is the set of flora and fauna which occupy the bio-geographical area, Source-sink dynamics, or quality variations that affect the organism population growth or decline

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Which of the following solutions contains the largest number of moles of dissolved particles? a.) 25 ml of sodium chloride b.) 2

kirza4 [7]

Answer:

b.) 25 ml of aluminum hydroxide

Explanation:

For this question, we have to assume that we have the same concentration for all the solutions, for example, 1 M. Additionally, we have to take into account the ionization reaction for each species:

a) $NaCl~->~Na^+~+~Cl^-$ we have to ions

b) $Al(OH)_3~->~Al^+^3~+~3OH^-$ we have fourth ions

c) $CH_3COOH~->~CH_3COO^-~+~H^+$ we have two ions

d) $C_6H_1_2O_6~->~C_6H_1_2O_6$ we have one ion

If we have the same volume and the same concentration the variables that will help us to answer the question would be the number of ions. If we have more ions we will have more particles dissolved. Therefore the answer would be b) (due to the fourth ions).

I hope it helps

5 0

3 years ago

Read 2 more answers

A freight train rushed down the track going south at 60 mph. This is an example of ____.

dalvyx [7]

This Question Would Be "b"

4 0

4 years ago

The compound borazine consists of 40.29% boron, 7.51%

ioda

Answer:

$B_3H_6N_3$

Explanation:

Hello there!

In this case, since the mass percentages in a compound which is wanted to know the molecular formula, can be assumed to be the masses, we first need to compute the moles they have in the formula unit:

$n_B=40.29gB*\frac{1molB}{10.811gB} =3.73molB\\\\n_H=7.51gH*\frac{1molH}{1.01gH} =7.44molH\\\\n_N=52.20gN*\frac{1molN}{14.01gN} =3.73molN$

Next, we divide each moles by the fewest ones (3.73 mol) in order to find the subscript in the empirical formula first:

$B:\frac{3.73}{3.73}=1 \\\\H:\frac{7.44}{3.73}=2\\\\N:\frac{3.73}{3.73}=1$

Then, the empirical formula is BH2N whose molar mass is 26.83 g/mol, so the ratio of molecular to empirical is 80.50/26.83=3; therefore, the molecular formula is three times the empirical one:

$B_3H_6N_3$

Best regards!

7 0

3 years ago

Stars with a greater overall mass are and , and they consume their nuclear fuel .

kozerog [31]

Answer:

they will expand

Explanation:

as they bring out they become red giants then eventually white dwarfs or the scarier options a black hole

4 0

3 years ago

Elements K and L have 12 and 17 protons respectively. If k has 24 neutrons and L has 36, in a tabular form identify the number o

Delvig [45]

Answer: try watchong videos search up what you just say and wtch the videos it could help

Explanation:

5 0

3 years ago