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Dvinal [7]
3 years ago
14

13) State four factors that can disrupt thebalance of the ecosystem-​

Chemistry
2 answers:
Marysya12 [62]3 years ago
4 0

Answer:

I’m looking for an answer aswell

Explanation:

Hunter-Best [27]3 years ago
3 0

Answer:

habitat change, climate change, invasive species, and pollution

Explanation:

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The density of a metal is 10.5 g/cm3. If the mass of themetal
vitfil [10]

Answer:

11.7 mL

Explanation:

Density of a substance is given by the mass of the substance divided by the volume of the substance .

Hence , d = m / V

V = volume

m = mass ,  

d = density ,

From the question ,

The density of the metal = 10.5 g/cm³

The mass of the metal = 5.25 g

Hence , the volume can be calculated from the above formula , i.e. ,

d = m / V  

V = m / d

V = 5.25 g / 10.5 g/cm³

V = 0.5 cm³

Since , The unit 1 mL = 1 cm³

V = 0.5 mL

The vessel has 11.2 mL of water ,

The new volume becomes ,

11.2 mL +  0.5 mL = 11.7 mL

4 0
3 years ago
How does pollution affect air resources?
tatiyna

Answer: it gets inside the air and then it infects the air's resourses

Explanation:

7 0
3 years ago
What is an octet of electrons? Which elements contain an octet of electrons?
8090 [49]

Answer:

Explanation:

Octet, in chemistry, the eight-electron arrangement in the outer electron shell of the noble-gas atoms. This structure is held responsible for the relative inertness of the noble gases and the chemical behaviour of certain other elements.

5 0
3 years ago
Read 2 more answers
Step 4: Solve the equation.<br> KE = 27.5 kg x 4 m²/s2<br> =
harkovskaia [24]
Kinetic energy is 1/2m*v^2
They already halved the mass for you and they already squared the velocity for you. I’m unsure why you’re even asking this question. It’s simple multiplication at this point.
(27.5kg)*(4m^2/s^2) = 110 Jules
4 0
3 years ago
21. Draw Lewis structure
Veseljchak [2.6K]

Answer:

C contains one N and three I atoms

7 0
3 years ago
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