All categories

3 years ago

Why is water so important for the ecosystem

2 answers:

5 0

Water helps to transport oxygen, minerals, nutrients and waste products to and from the cells. ... Water plays an important role in plant production- some seeds are dispersed by water. It also provide a habitat for different animals and plants and is important for photosynthesis.

puteri [66]3 years ago

4 0

Answer:

The main function of water is to enhance the plant growth provide a permanent for species that live within it, or provide a temporary home or breeding ground for multiple amphibians, insects and water-birthed organismsand to provide the nutrients and minerals necessary to sustain physical life.

You might be interested in

A sample of N2(g) was collected over water at 25°C and 730 torr in a container with a volume of 340 mL. The vapor pressure of wa

AnnZ [28]

Answer:

D. 0.36 g

Explanation:

When a gas is collected over water, the total pressure is the sum of the pressure of the gas and the pressure of the water vapor.

Ptotal = Pwater + PN₂

PN₂ = Ptotal - Pwater = 730 torr - 23.76 torr = 706 torr

We can find the mass of N₂ using the ideal gas equation.

$P.V=n.R.T=\frac{m}{M} .R.T\\m=\frac{P.V.M}{R.T} =\frac{730torr.0.340L.28g/mol}{(0.08206atm.L/mol.K).298K} .\frac{1atm}{760torr} =0.36g$

6 0

3 years ago

Please help me with chemistry. Thanks

il63 [147K]

Constant:
Test tubes

Independent:
<span>volume of gas

Dependent:
</span>
<span>amount of H2O2 </span>

7 0

4 years ago

Read 2 more answers

A sample of carbon dioxide gas collected at a pressure of 880 mm Hg and a temperature of 303 K has a mass of 26.9 g. The volume

trapecia [35]

Answer:

13.1dm³

Explanation:

Given parameters:

Pressure of gas = 880mmHg

760mmHg = 1 atm

880mmHg will give 1.16atm

Temperature = 303k

Mass of gas = 26.9g

Molar mass of CO₂ = 12 + 2(32) = 44g/mol

Number of moles = mass/molar mass = 26.9/44 = 0.61mole

Unknown:

Volume of the sample = ?

Solution:

To solve this problem, we use the ideal gas equation:

PV = nRT

P is the pressure

V is the volume

n is the number of moles

R is the gas constant = 0.082atmdm³mol⁻¹k⁻¹

T is the temperature

V = $\frac{nRT}{P}$ = $\frac{0.61 x 0.082 x 303}{1.16}$ = 13.1dm³

4 0

3 years ago

During the nuclear fission process, the transformation between a parent and daughter isotope involves a a release of neutrons an

denis-greek [22]

Answer:

The energy harnessed in nuclei is released in nuclear reactions. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus. The consequence of fission or fusion is the absorption or release of energy.

Introduction

7 0

3 years ago

Which two factors are used to calculate the kinetic energy of an object?

muminat

Answer:

Mass and Velocity

Explanation:

hope this is the right answer might wrong tho

3 0

3 years ago

Read 2 more answers