As we move UP a energy pyramid, the amount of energy available to each level of consumers

Answer: 1.535e42 (or 1.535x10^42) moles of CO2

Explanation: i know this is six days late, but all you have to do for this one is multiply 2.55e18 by the standard mole value, 6.02e23 and your calculator will give you 1.535e42 moles!

Answer:

none

Explanation:

It is given that there are 3 cats.

Each of the cats die with different diseases. One of cats died due to heart failure, the second cats died because of brain tumor and the third cat died due to an experiment gone wrong.

So there are none of the cats left out. All the cats died due to different reasons.

Answer:

Explanation:

1-False

2-true

3-false

4-false

5-true

what is this..a murder scene?? Lolol

Answer:

the answer is A

Explanation:

hope it hlp

Answer:

butyne

Explanation:

Suffix -yne indicates presence of triple bond and prefix but- means 4 carbons atoms.

Answer:

Controls the movement of substances into and out of the cell.

Answer:

See Explanation

Explanation:

For SF6;

Since;

1.25 g of S corresponds to 4.44g of F

1 g of sulphur corresponds to 1 * 4.44/1.25 = 3.55

For SF4;

Since;

1.88 g of S corresponds to 4.44g of F

1 g of sulphur corresponds to 1 * 4.44/ 1.88  = 2.36

Hence;

Mass of oxygen per gram of sulphur in SF6/Mass of oxygen per gram of sulphur in SF4

=

3.55/2.36 = 1.5

Hence the law of multiple proportion is obeyed here.

Answer:

See Explanation

Explanation:

Renewable energy sources refers to those energy sources that can never be depleted. This means that they can be used severally without getting exhausted. Solar, biomass, wind and hydroelectric power are all renewable energy sources.

Hence, from the perspective described above, we can say that wind is a form of solar energy because wind is formed when the air is heated by the sun.

Hydroelectric power is driven by the water cycle. This water cycle somehow depends on the sun to run efficiently. So, hydroelectric power can also be considered to be a form of  solar energy.

Answer:

Seattle is shielded from extreme weather by the Cascade and Olympic mountain regions to the east and west, respectively. Low pressure systems tend to come from the south while high pressure systems tend to come from the north.

The Answer is compensation

Answer:

2 or 3 hrs

I think

Answer:

7242.1g

Explanation:

The balanced equation for this reaction is as follows:

Mg + 2HCl → MgCl2 + H2

From the above equation, it can be observed that 2 moles of HCl is needed to produce 1 mole of H2.

Using the formula below, we convert the mass of H2 to moles;

Molar mass of H2 = 2.016g/mol

mole = 200/2.016

mole = 99.21mol of H2

Since 2 moles of HCl is needed to produce 1 mole of H2.

Then 99.21 moles of H2 will be produced by 99.21 × 2 = 198.4mol of HCl

Molar mass of HCl = 1 + 35.5

= 36.5g/mol

Mole = mass/molar mass

Mass = molar mass × mole

Mass = 36.5 × 198.4

Mass = 7242.1g

Answer:

A

Explanation:

I think it is C because if you read B, c or D you would probably think those would not help the biodiversity of the ecosystem.

Answer:

It's c

Explanation:

C.implementing and enforcing laws that limit the number of fish that can be caught annually in this ecosystem

I just did it soo..

The correct answer is

1,4-dichloro-2-pentanone

The name of the given molecule will be "1,4-dichloro-2-pentanone".

A molecule represents the tiniest unit of a material that keeps its content and properties. It must be made up of two or more atoms that have been joined together by chemical bonds.

This molecule will be made by carbon, oxygen , hydrogen and oxygen molecule.

It can be seen that given molecule has 5 carbon atom in which 1 and 4 position of carbon atom chlorine atom is present and at 2 carbon oxygen atom is presence. that's why the name of the given molecule will be "1,4-dichloro-2-pentanone".

In this molecule one ketone and two halogen (Cl) groups are present that's why it can be consider as keto halogen compound.

The molecular formula of this compound can be written as [tex]C_{5} H_{10} Cl_{2} O[/tex]. Presence of oxygen molecule indicate that keto group should be present in the given molecule . So the name of the compound should be  1,4-dichloro-2-pentanone

Therefore, the correct answer will be option (C).

To know more about molecule

https://brainly.com/question/19922822

#SPJ2

Answer:

its actually experimental this time

Explanation:

sorry bout the last one i just wanna help:(

Answer:7283

Explanation:

$34748

Answer:

1.38 atm

Explanation:

Partial pressure of a gas = total pressure × mole fraction of that gas.

Mole fraction of a gas is moles of a gas ÷ total moles of all gases.

The partial pressure of Helium gas is 2.756 atm. This can be calculated by using mol fraction first.

Calculation of mol fraction:

It is the ratio of one mole of gas to the total moles of all the gases.

Total moles of all gases = 0.380+0.250+0.500 =1.13

Mol fraction of Helium gas = 0.500/1.13

Mol fraction of Helium gas = 0.442

It is the product of mol fraction of the gas to the total pressure given.

Partial pressure= 0.442 * 6.52 atm

Partial pressure=2.765 atm

Find more information about Mol fraction here:

brainly.com/question/1601411

Answer:

well im sorry to say this but good luck >:}

Explanation:

Answer:

Atoms form chemical bonds to make their outer electron shells more stable. The type of chemical bond maximizes the stability of the atoms that form it. ... Covalent bonds form when sharing atoms results in the highest stability. Other types of bonds besides ionic and covalent chemical bonds exist, too.

Answer:

1623.62

Explanation:

The first step is to calculate the mass of sodium hypochlorite

1684.6× 3.62/100

1684.6× 0.0362

60.98252

Therefore the mass of the solvent can be calculated as follows

1684.6-60.98252

1623.62

The modern periodic table consists of metals, non-metals and metalloids. The elements are arranged in the increasing order of their atomic numbers. The elements which are shaded in green colour are metalloids.

The elements which exhibit the properties of both metals and non-metals are called metalloids. Some of the important metalloids are germanium, silicon, antimony, tellurium and polonium.

The physical and chemical properties of the metalloids fall in between the metal and non-metal categories. The metalloids have metallic properties and appearances, but they are brittle and mediocre electricity conductors.

The metalloids also have electronic band structures which are similar to semimetals or semiconductors. These elements generally have intermediate ionization energies and electronegativity. They form both amphoteric or weakly acidic oxides.

These elements also form metallic alloys. So metalloids behave like metals as well as like non-metals.

Thus the green shaded elements are metalloids.

To know more about metalloids, visit;

https://brainly.com/question/2548493

#SPJ3

Your question is incomplete most probably your question was:

The green elements on the table are called blank elements

Answer:

Explanation:

The new volume can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we're finding the new volume we have

[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]

First convert 745 mmHg to atm

760 mmHg = 1 atm

745 mmHg = 745/760 = 0.98 atm

We have

[tex]V_2 = \frac{500 \times 0.98}{1.8} \\ = 272.222...[/tex]

We have the final answer as

Hope this helps you

Answer:

298

hope this helps

have a good day :)

Explanation:

Solution,

Mass of Mg - 21gm

molar mass of Mg - 24gm

moles = Given mass/ Molar mass

moles = 21/24 = 0.875

1 mole of Mg produce 1 mole of H2 gas

so 0.875 mole of Mg will produce 0.875 moles of H2 gas

One mole of H2 gas = 22.4 litre

0.875 mole of H2 gas = 0.875×22.4

0.875 mole of H2 gas = 19.60 litre

So the nearest ANSWER is Option four 19.37 litre.

STP is the standard temperature and the pressure of the gases of the system. The volume of the hydrogen that will be produced as STP is 19.37 litres.

Volume is the amount of the substance or the solution occupied in an area or object and is estimated in L or mL. It is a scalar quantity.

Given,

Mass of magnesium = 21 gm

Molar mass of magnesium = 24 gm/mol

Moles of magnesium can be calculated as,

[tex]\begin{aligned}\rm moles &= \rm \dfrac{mass}{molar\;mass}\\\\&= \dfrac{21}{24}\\\\&= 0.875 \;\rm mol\end{aligned}[/tex]

If 1-mole magnesium = 1-mole hydrogen gas

Then 0.875-mole magnesium = 0.875 moles of hydrogen gas

If 1 mole of hydrogen gas = 22.4 L

Then, 0.875 moles of hydrogen gas = x L

Solving for x:

[tex]\begin{aligned}\rm x &= 0.875 \times 22.4\\\\&= 19.60 \;\rm litre\end {aligned}[/tex]

Therefore, the volume of hydrogen at STP would be option 4. 19.37 litres.

Learn more about volume and STP here:

https://brainly.com/question/1323332

Answer:

The concentration of reactants and products is the same because there is no forward reaction and backward reaction taking place since the equilibrium position is in the mid.

Answer:

See Explanation

Explanation:

a) If water is not most dense at 4°C, then the entire lake or pond will simply freeze bottom-up during winter thereby leading to the death of all the aquatic organisms inside the pond.

b) If the solid ice was more dense than water then it will sink inside the water thereby making room for the water to continue to freeze until all the water in the lake or pond will be converted to ice.

c) If the scenario described in (a) and (b) above occurs, the lake will simply cease to exist because all the living organisms in it will die and begin to decay after the ice has melted after the winter season thereby leading to a complete loss of the lake or pond.

Answer:

mark them brainyist

Explanation:

Answer:

Explanation:

The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.

Answer:

WATER

Explanation:

Water melting  point 0 c boiling 100c