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djverab [1.8K]
3 years ago
9

A fox hunts a rabbit. When the fox captures the rabbit, he consumes it. What is the primary reason for this organism interaction

?
A. nourishment

B. companionship

C. reproduction

D. protection
Chemistry
2 answers:
Umnica [9.8K]3 years ago
4 0

it is nourishment trust me.

jolli1 [7]3 years ago
3 0
I'm pretty sure it's not B or D.
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What is the percent by mass of nahco3 in a solution containing 10 g of nahco3 dissolved in 400 ml of h2o?
Marat540 [252]
Answer is: the percent by mass of NaHCO₃ is 2,43%.
m(NaHCO₃) = 10 g.
V(H₂O) = 400 ml.
d(H₂O) = 1 g/ml.
m(H₂O) = V(H₂O) · d(H₂O).
m(H₂O) = 400 ml · 1 g/ml.
m(H₂O) = 400 g.
m(solution) = m(H₂O) + m(NaHCO₃).
m(solution) = 400 g + 10 g.
m(solution) = 410 g.
ω(NaHCO₃) = 10 g ÷ 410 g · 100%.
ω(NaHCO₃) = 2,43 %
7 0
3 years ago
What is the density of nitrogen gas if 0.186 g occupies a volume of 110 mL?
Anvisha [2.4K]

Answer:

d=1.69\times 10^{-3}\ g/mL

Explanation:

Given that,

Mass, m = 0.186 g

Volume occupies, V = 110 mL

We need to find the density of Nitrogen gas. The mass per unit volume is called density of an object. It is given by the formula as follows :

d=\dfrac{m}{V}\\\\d=\dfrac{0.186\ g}{110\ mL}\\\\=1.69\times 10^{-3}\ g/mL

So, the required density is 1.69\times 10^{-3}\ g/mL.

4 0
3 years ago
What is the concentration of a solution?​
Nimfa-mama [501]

The concentration of a substance is the quantity of solute present in a given quantity of solution.

8 0
3 years ago
A gas at a volume of 9 liters is at a pressure of 6 atm. The volume is changed to 12 Liters, what must the new pressure be?​
ser-zykov [4K]

Boyle's Law

P₁V₁=P₂V₂

6.9 = P₂.12

P₂ = 4.5 atm

7 0
2 years ago
Help me please! thank you!​
Lisa [10]

Answer:

0.27 mol

Explanation:

If you add the molar mass of Silver and Iodine, you will get 234.77 grams per mole.

With that information, we can convert 62.9 grams of AgI to moles by doing this conversion:

62.9 g (\frac{1 mol}{234.77 g})

The grams will cancel out so you are left with moles.

8 0
3 years ago
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