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nordsb [41]
3 years ago
12

What does a habitat and a niche have in common

Chemistry
1 answer:
Inga [223]3 years ago
3 0
They are all charectirized by Ecological threats, such as environmental destruction, <span>Biotope, or the totality of species within the ecosystem, </span><span>Biome, which is the set of flora and fauna which occupy the bio-geographical area, </span><span>Source-sink dynamics, or quality variations that affect the organism population growth or decline</span><span />
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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 <u>same concentration</u> for all the solutions, for example, <u>1 M</u>. Additionally, we have to take into account the <u>ionization reaction</u> for each species:

a) NaCl~->~Na^+~+~Cl^- <u>we have to ions</u>

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

c) CH_3COOH~->~CH_3COO^-~+~H^+ <u>we have two ions</u>

d) C_6H_1_2O_6~->~C_6H_1_2O_6  <u>we have one ion</u>

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

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
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