This picture depicts secondary succession in a Forest ecosystem.

Garfield (weighing 24 lbs) took a flight from the earth to the moon (where the gravity is 1/6 the gravity here on earth) on the

Nana76 [90]

Answer:

Reason: Gravitational pull of the Moon

Explanation:

Weight of Garfield is 24 lbs on the Earth. He took a flight from the Earth to the Moon where the gravity is 1/6 of the gravity on the Earth.

But when reaches the Moon he found he weighed only 6 lbs. It is due to the gravitational pull of the Moon.

Mass of an object reamins the same at every location while its weight changes due to the change in acceleration due to gravity. It is equal (on Moon) to 1/6 the of acceleration due to gravity on the earth.

3 0

3 years ago

A 9.000L tank at 27.0°C is filled with 5.29g of sulfur tetrafluoride gas and 15.6g of carbon dioxide gas. You can assume both ga

Colt1911 [192]

Answer:

Mole fraction SF₄: 0,121

Mole fraction CO₂: 0,879

Partial pressure SF₄: 0,134 atm

Partial pressure CO₂: 0,968 atm

Total pressure: 1,102 atm

Explanation:

The moles of sulfur tetrafluoride gas and carbon dioxide gas are:

5,29g SF₄× $\frac{1mol}{108,07g}$ = 0,0489 moles SF₄

15,6 CO₂× $\frac{1mol}{44,01g}$ = 0,354 moles CO₂

Mole fraction SF₄:

$X_{SF_{4}} = \frac{0,0489mol}{0,0489+0,354}$ = 0,121

Mole fraction CO₂:

$X_{CO_{2}} = \frac{0,354mol}{0,0489+0,354}$ = 0,879

It is possible to obtain partial pressure of both gases with moles of each gas using:

P = nRT/V

Where n are respective moles, R is gas constant (0,082atmL/molK), T is teemperature (27°C=300,15K), V is volume (9,0000L)

Replacing:

Partial pressure SF₄: 0,134atm

Partial pressure CO₂: 0,968atm

Now, the sum of the partial pressures is the total pressure in the tank, that means:

Total pressure: 0,134atm + 0,968atm = 1,102atm

I hope it helps!

6 0

3 years ago

In table below, there are descriptions of an experiment on samples of three different chemical compounds. Decide whether the com

Ulleksa [173]

Answer:

1. molecular

2. molecular

3. molecular

Explanation:

Molecular compounds typically exhibit covalent compound characteristics. They are pure substances formed when atoms are linked together by sharing electrons while ionic compounds are formed due to the transfer of electrons. Molecular substances tend to melt at moderately warm temperatures (i.e. 50° C) and it is overlapping as seen in compound 1, which makes it to be molecular in nature.

Molecular compounds are not affected by conductivity, hence they are electrically neutral.

Molecular compounds have a strong smell and have freezing and boiling point at accessible temperatures. A clear liquid at room temperature which has a fruity strong smell can be an organic compound. These organic compounds made up of covalent bonds and are molecular in nature.

8 0

2 years ago

HELPPP ME ASPAP I'LL GIVE YOU BRAINLIST (NO NONSENSE PLS)

Alex73 [517]

Answer:

1) 157 Neutrons, 2) the decimal is simply is due to isotopes, because the elements atomic mass is an average of these isotopes multiplied by its abundance(or percentage on earth.) For Mercury, it has many isotopes(an element with a different mass number, logically the atomic mass listed on the periodic table as a mass has 100% abundance, therefore this is used to find the most abundant mass for that particular element/molar mass) likewise, Mercury has an atomic mass of 200.59 u, as one mol of Hg(mercury) is 200.59 grams.

Explanation:

The formula for Neutrons in an atom of an element is calculated by finding the

8 0

2 years ago

Read 2 more answers

As the temperature of the water increases, what happens to the number of water particles in a mL (cm3)?

pishuonlain [190]

The particles slow down

8 0

2 years ago