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3 years ago

How adaptations in a bird's beak help them survive in their environment

2 answers:

7 0

A adaptation in a birds beak helps them survive, because their beak adapted to the food source. Their beaks needs to be a certain size or shape to eat different types of food based on their living environment.

jeyben [28]3 years ago

3 0

Answer:

they can get food easily and they can pack the predators to help them with their safty!♥

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What must happen in a chemical reaction?

klasskru [66]

The anwser is atoms are destroyed

6 0

3 years ago

Can someone please help and list what each type of thing they are? (Element, Compound, Mixture of elements, Mixture of compounds

enot [183]

1. B
2. C
3. E
4. D
5. A
6. B
7. A
8. E
9. A

Hope this helps!

5 0

3 years ago

If 88.0 L of natural gas, which is essentially methane (CH4), undergoes complete combustion at 720. mm Hg and 22ºC, how many gra

mr_godi [17]

126 grams of H2O is formed.

Explanation:

Data given:

volume of the gas = 88 Liters

pressure = 720 mm Hg or 0.947 atm

temperature T = 22 Degrees or 295.15 K

R = 0.08021 atm L/mole K

n =?

The formula is used is of ideal gas law to know the number of moles of CH4 undergoing combustion.

PV = nRT

n = $\frac{PV}{RT}$

putting the values in the equation

= 0.947 X 88/ 0.08021 X 295.15

n = 3.5 moles

balanced reaction for combustion of methane

CH4 + O2 ⇒ CO2 + 2H20

1 mole of CH4 undergoes combustion to form 2 moles of water

3.5 moles will give x moles of water

2/1 = x/3.5

x = 7 moles of water (atomic mass of water = 18 gram/mole)

mass = atomic mass x number of moles

mass = 18 x 7

=126 grams of water is formed.

7 0

4 years ago

Hydrogen sulfide is composed of two elements: hydrogen and sulfur. in an experiment, 6.500 g of hydrogen sulfide is fully decomp

LiRa [457]

Hydrogen sulfide = hidrogen + sulfur

6.500 g

a) 0.384 g + x

=> 6.500 = 0.384 + x => x = 6.500 - 0.384 = 6.116 g

Answer: 6.116 g of sulfur must be obtained

b) this experiment demonstrate the conservation of mass.

c) Dalton's atomic model states that the atoms cannot be created, split or be destroyed, and so in a chemical reaction the atoms rearrange but the number of each type of atoms remain constant, so the mass of each type of atoms and the total mass remain constant.

8 0

4 years ago

A sample of gold weighing 38.6 g was added to a graduated cylinder containing 23.00 mL of water. The volume of the water plus th

Lady bird [3.3K]

Answer:

2.00 g mL -1

Explanation:

2.00 g mL -1

4 0

2 years ago

Read 2 more answers