Match The hydrocarbon names and structural formulas

Answer:

B : 4.6 billion years

Credits go to the person above me.

;)

Explanation:

EDGE 2021

The sun is about 4.6 billion years old. Therefore, option (B) is correct.

The Sun is made primarily of the elements hydrogen and helium. They account for 74.9% and 23.8% mass of the Sun in the photosphere. All heavier elements, called metals account for less than 2% of the mass, with oxygen (<1%), carbon (0.3%), neon (0.2%), and iron (0.2%) being the most abundant.

The hydrogen and helium in the Sun would have been produced by Big Bang nucleosynthesis and the heavier elements were produced by former generations of stars before the Sun was formed.

The amount of helium and its location within the Sun has gradually changed over the past 4.6 billion years. The proportion of helium has raised from about 24% to 60% due to fusion, and some of the He and heavy elements have settled from the photosphere toward the center due to gravity.

Therefore, the age of the sun is about 4.6 billion years.

Learn more about Sun, here:

https://brainly.com/question/2526507

#SPJ6

Lowering the pressure in a container will cause the liquid in the container to boil faster because it becomes easier for the molecules to escape.

Boiling happens when the vapor pressure of a liquid equals the atmospheric pressure.

By lowering the atmospheric pressure, the vapor pressure of a liquid takes a lower time to equal the atmospheric pressure.

Thus, it becomes easier for the molecules of the liquid to escape from each other.

More on boiling and pressure can be found here: https://brainly.com/question/2510654

Answer: d=2.70 g/mL

I think

Answer:

Explanation:

To convert the mass to moles, divide the mass by the atomic weight of the element or compound.

To convert back to mass from the moles, multiply the moles by the atomic weight of the element or compound

Answer:

gains two electron!

Explanation:

When a barium atom forms its most common ion, it gains two electron!

Answer:

The purple are molarity and the green are molality

Explanation:

I think dont kill me if thats wrong

Answer:

48 mph

Explanation:

total time= 19/12 hr

distence- 76 miles

speed- D/T=76/19/12

which is 48mph

if my answer helps please mark as brainliest.

Answer:

pretty sure its average speed in miles per hour is 48

Explanation:

I just took 76 and divided it by 1 7/12 and got 48

Answer:

because time do not depend on direction. actually time is fake.nobody can stop it neither disturb it.it is in my view.

Answer:

C producers

Explanation:

All food chains start with energy from the sun. This energy is captured by plants. Thus the living part of a food chain always starts with plant life and ends with an animal. Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water.

Answer:

because the global sea level rises while the poles temperature increases

Explanation:

Answer:

2.00

Explanation:

They said that was the answer.

If a sample of 0.500 moles of hydrogen sulfide H₂S was reacted with excess concentrated sulfuric acid then, number of moles of sulfur dioxide SO₂ would be produced are 2.00.

It is the ratio of mass of element in grams of a given compound and the molar mass of the element. In order to have balanced equation, we have to find the correct number of mole of SO₂. The reaction is

H₂S(g) + 3H₂SO₄ ⇄ 4H₂O(l) + 4SO₂

1 mole of H₂S react with excess of H₂SO₄ to give 4 moles of SO₂.

0.5 mole of H₂S react with excess of H₂SO₄ to give 4 x 0.5 =2.00 moles of SO₂.

Thus, 2 moles of sulfur dioxide SO₂ would be produced.

Learn more about moles of gases.

https://brainly.com/question/11686257

#SPJ2

Answer:

10A because they are series

Explanation:

the empirical formula is correct but I didn't got the question properly

20000 nanograms sorry i cant answer the second question

Answer:

A pH environment has a significant effect on an enzymes. It can affect the intramolecular forces and change the enzyme's shape -- potentially to the point where it is rendered ineffective. With these effects in mind, typical enzymes have a pH range in which they perform optimally.

Explanation:

I hope this helps you.

Answer:

O eukaryotic

they have nucleus

Answer:

[He] 2s2 2p3

[Ne] 3s² 3p⁵

[Ar] 4s¹

Answer:

consistent

(stable bodies of liquid water)

Answer:

Polar molecules have a non-zero net dipole moment. Both CO2 and H2O have two polar bonds. However the dipoles in the linear CO2 molecule cancel each other out, meaning that the CO2 molecule is non-polar. The polar bonds in the bent H2O molecule result in a net dipole moment, so H2O is polar.

Explanation:

Answer:

Magnesium chloride

Answer:

19.5 kgm/s²

Explanation:

19.5 kgm/s²

Answer:

The molecules in a solid are close together and they vibrate in place. The molecules in a liquid move quickly and farther apart from eachother. The particles in a gas move freely at high speeds and slide past eachother.

Answer:

m = 1.5 gram

Explanation:

Given that,

Density of protein gelatin, d = 3 g/L

The volume of protein gelatin, V = 0.5 L

We need to find the mass of the protein gelatin. The density of an object is given by :

d = m/V

Where

m is mass

[tex]m=d\times V\\\\m=3\ g/L\times 0.5\ L\\\\m=1.5\ g[/tex]

So, the required mass is 1.5 gram.

Answer:

in this the correct answer is option 2.

Answer:

A catalyst is anything that alters the rate of the reaction same as an enzymes that adds to the process in a human body which stops working when a person has fever

Answer:

Enzymes are proteins functioning as catalysts that speed up reactions by lowering the activation energy. A simple and succinct definition of an enzyme is that it is a biological catalyst that accelerates a chemical reaction without altering its equilibrium. ... In the overall process, enzymes do not undergo any net change.

I hope it's helpful!

Answer:

They have the exact same name at the first but the yacca plant must be eaten by the yacca moth because if the animal doesn't eat it will die of hunger

Answer:

its B

Explanation:

The relationship between yucca moths and yucca plants is an example of obligate mutualism. Many species of yucca plant can be pollinated by only one species of yucca moth, while those yucca moths use the yucca flowers as a safe space to lay their eggs.

this info can be found on "https://ir.lib.uwo.ca/wurjhns/vol8/iss1/10/#:~:text=The%20relationship%20between%20yucca%20moths,space%20to%20lay%20their%20eggs."

Specific heat is the amount, like the other brainly answer said, of heat per unit mass required.

Answer:

It is a synonym for "life form". Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea. ... Fungi, animals and plants are examples of kingdoms of organisms within the eukaryotes.

So yes, it should

Explanation: