Brainlist to who gets it right first

Which feature of the leaves is an adaptation for obtaining energy
A. Their short height
B. Their large size
C. Their pointed tips
D. Their unique shape

gram of NO=5

2NO = 2N+O2

2×2.50=x

x=5

The mass of nitrogen monoxide  produced from 2.5 grams of oxygen is 1.875 grams

4NH₃ + 50₂ → 4NO + 6H₂0

The limiting reagent is 0₂ because the least moles of this are used in the reaction.

Therefore, it will determine the amount of product formed.

From the chemical reaction above

10(16) g of 0₂ gives (4×14 + 4×16) g of NO

2.50 g of 0₂ will give ? of NO

cross multiply

mass of NO formed = 2.50 × 120 / 160

mass of NO formed = 300 / 160

mass of NO formed = 1.875 grams

learn more on mass here: https://brainly.com/question/14269180

Answer:

the mass of 8.03 mole of NH3 is 136.51 g

Explanation:

The computation of the mass is shown below:

As we know that

Mass = number of moles × molar mass

= 8.03 mol  × 17 g/mol

= 136.51 g

Hence, the mass of 8.03 mole of NH3 is 136.51 g

We simply multiplied the number of moles with the molar mass so that the mass could come

During the Proterozoic eon was the earth made of land masses all clumped together in one supercontinent called Rodinia. Therefore, option A is correct.

The Archean Eon is followed by the Proterozoic Eon, which spans 2.5 billion years to 541 million years old and is known as the "early life" eon. The majority of the continents' center regions were developed by this time, and the plate tectonic process had begun.

The Proterozoic is currently understood based on geological, geochemical, and fossil evidence. The Cambrian epoch and an explosion of various species at the beginning of the Phanerozoic eon both originated at the conclusion of this eon.

During the Proterozoic Era, Rodinia was a supercontinent that included nearly all of Earth's landmasses for around 450 million years (2.5 billion to 541 million years ago).

Thus, option A is correct.

To learn more about the Proterozoic eon, follow the link:

https://brainly.com/question/20700965

#SPJ3

Answer:4.5 moles

Explanation:

Answer:

fttttggttfvvgfrr ccsfgt chg chu rdh fig ffhfr

Answer:

To solve this problem, you'll need the formula that relates heat energy to mass and heat of fusion:

q = m·ΔHf

where

q = heat energy

m = mass

ΔHf = heat of fusion

Explanation:

62.3J ÷ 7.3g = ΔHf

8.53 J/g = ΔHf

4.18 cal/g = ΔHf

Answer:

Enzymes and catalysts both affect the rate of a reaction. The difference between catalysts and enzymes is that enzymes are largely organic in nature and are bio-catalysts, while non-enzymatic catalysts can be inorganic compounds. ... Neither catalysts nor enzymes are consumed in the reactions they catalyze.

Explanation:

MARK ME

Answer:

i think it's C

Explanation:

But if it's wrong,im so sorry

Answer:

C.

Explanation:

the answer is C dmitri mendeleev

if im not mistaken its because the ozone layer

Answer:

3 sometimes 4

Explanation: there are usualy

3 layers of paint but sometime manufacterers add paint protection film to bring the total up to 4

Answer:

Speed

Explanation:

Answer:

mass

Explanation:

your welcome

Answer:

the mass number decreases by 4 and the atomic number decreases by 2

Answer:

Reflection: you look in the mirror. Refraction: You put a straw in a glass of water, and it looks like it broke. Absorption: If you have a black sweater and you wear it out in the cold, the black sweater is going to hold in heat better than a lighter sweater because the black sweater absorbs light .

Answer:

answer this and ill answer that

Explanation:

during a heating or cooling process, how are changes in enthalpy and temperature related?​

Answer:

nucleus and electrons

Explanation:

nucleus contains protons and neutrons

Answer:

1 not

2 not

3 not

4 balanced

5 not

6 not

7 balanced

Explanation:

the amount of elements must be equal in the reactant and products

Answer:

3). 1.30 × 10^(24) molecules

Explanation:

From avogadro's law which state that equal volume of all gases at the same temperature and pressure contain the same number of molecules.

We can relate it to this question as;

V₁/n₁ = V₂/n₂

Where;

V₁ is initial volume

n₁ is initial number of molecules

V₂ is final volume

n₂ is final number of molecules

Thus at STP, we have V₁ = V₂ and as such Plugging in the relevant values gives;

5/(1.30 x 10^(24)) = 5/n₂

n₂ = 1.30 x 10^(24) molecules

Answer:

1.30 X 1024  molecules

Explanation:

just took the test :D

have a miraculous day!!! <3

Answer:

run off

Explanation:

Answer: The answer is stream --> Tributary --> River --> Lake

Answer:

The melting and boiling points of molecular compounds are generally quite low compared to those of ionic compounds. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound

Answer: 0.33 mole

Explanation:

Let the number of moles be represented by x.

We should note that 1 mole of NaCl = 58.44g

Therefore, the number of moles in 19.3g of NaCl will be :

= 19.3/58.44

= 0.33 mole

Therefore, the number of moles in 19.3g of NaCl is 0.33 mole

Answer:

A

Explanation:

Answer:

The stamen!

The stamen is often made up of anthers and filaments

Answer:

A region 2

Explanation:

Answer:

Explanation:

ok, so heat energy is a result to moving particles which are atoms  molecules or ions in solids,liquids and gasses. And heat energy can be moved from an object to a other object. The transfer or the flow is different in temperature between the two different of objects which is called heat.

Hope this is useful!

Answer

What website is this question on?

Explanation:

Answer:

1. true or false: A compound is a substance made of entirely of a single type of atom. answer: true

2. true or false: fig is a mixture of water droplets in air. imma just say its false

Explanation:

3. draining the liquid from a mixture of a liquid and a solid after the particles of the solid substance have settled

^ ^

answer : filtration

sifting

decanting

filtration  

by the way ur teacher is a FiretrUCKING geek he/she looked this up on a quiz

Answer:

Albert Einstein proposed the wave-particle theory of electromagnetic radiation. This theory states that electromagnetic energy is released in discrete packets of energy—now called photons—that act like waves.

Answer:

Ca3P2

Explanation: find out what 66% of the molar weight of the molecule is and then find out how many moles of Ca that would be by dividing it by the molar weight of Ca

then do the same for P

Answer:The answer is C. n i =3⟶n f =2

Explanation: I just take the test, I hope and helps, I know that is late.

Answer:

C. nᵢ = 3 ⟶ nᶠ = 2

Explanation:

Answer:

B. Malleability

hope it help

Answer:

The rain containing excess of acid I called acid rain

Answer:

acid rain

Explanation:

Thats literally what its called

Answer:

47.867

Explanation: It's Titanium because the atomic number is the number of protons.