All of the following explains why solar energy a better source of energy except:

Solar energy produces less toxic gas in the atmosphere.
Solar energy can be mined with less damage to ecosystems.
There is less environmental impact when collecting solar energy.
Solar energy is unlimited and easily captured from the Sun.

A covalent compound is a compound with a metal and a nonmetal ion sharing valence electrons (option A).

A covalent compound is a molecule formed by covalent bonds, in which the atoms share one or more pairs of valence electrons.

Covalent bond is a type of chemical bond where two atoms are connected to each other by the sharing of two or more electrons.

Chemical compounds are generally grouped into one of two categories as follows;

Covalent or molecular compounds generally result from two nonmetals reacting with each other. The elements form a compound by sharing electrons, resulting in an electrically neutral molecule.

Examples of covalent compounds are as follows:

Learn more about covalent compounds at: https://brainly.com/question/11632372

#SPJ1

Answer:

    The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

Explanation:

You're welcome!

Stay Safe!

Answer: Nucleus

Explanation: It is the nucleus because the nulceus holds the chromosomes of the cell.

Answer:

200

Explanation:

more molecules thats all i know

1) A 45.7 g sample of glass was brought to thermal equilibrium with boiling water and then transferred to 250.0 g of water that was at 22.5 °C. This combination reached thermal equilibrium at 24.2 °C. What is the specific heat capacity of glass?

2) What mass of silver at 100.0 °C, when added to 150.0 g of water at 21.0 °C, would raise the water’s temperature to 24.0 °C ?

3) The molar heat of fusion of H2O is 6.1 kJ/mole. What amount of energy would be needed to melt 376 g of ice at 0.0 °C?

Answer:

385

Explanation:

0.250m Converted to 250 mL then 250+135+ the answer

I'm not sure?

Answer:

[HClO₄] = 0.35 M

Explanation:

Neutralization reaction is:

HClO₄ + LiOH  →  LiClO₄  +  H₂O

In this case, we have a titration between a weak acid and a strong base.

In chemistry it is also called an acid base equilibrium.

HClO₄  +  H₂O  ⇄  ClO₄⁻   +  H₃O⁺       Ka

The weak acid is firstly neutralized by the strong base, in order to have a buffer solution before the equivalence point.

When we reach the equivalence point, mmoles of acid = mmoles of base and there is a formula to determine it so:

M acid . Volume of acid = M base . Volume of base

M acid . 100 mL = 0.75 M . 46.9 mL

M acid = (0.75 M . 46.9 mL) / 100 mL → 0.35 M

Answer:

200.0°C.

Explanation:

The resulatant volume of gas under given conditions is 9.49 liters.

Ideal gas equation gives idea about the behavior of gases at different conditions and it will be represented as:

PV = nRT, where

P = pressure in atm

V = volume in L

n = moles of gas

R = universal gas constant = 0.082 L.atm/K.mol

T = temperature in K

First we calculate the moles of gas by putting the values according to the first condition in the above equation and we have

n = (0.921)(500) / (0.082)(473) = 11.86 moles

Now we calculate the volume of gas by using the above equation and details of the second condition as:

V = (11.86)(0.082)(293) / (30) = 9.49 L

Hence resultant volume of the gas is 9.49L.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/555495

#SPJ2

Answer:

Boyle's Law

Explanation:

"Boyle's law, also referred to as the Boyle–Mariotte law, or Mariotte's law, is an experimental gas law that describes how the pressure of a gas tends to increase as the volume of the container decreases."

                                          -Wikipedia

Answer:

gravity

Explanation:

Gravity is the force that pulls us to the surface of the Earth, keeps the planets in orbit around the Sun and causes the formation of planets, stars and galaxies.

Hope this helped!!!

Answer:

52

Explanation:

Answer:

[tex]206.6\ \text{kPa}[/tex]

Explanation:

[tex]P_1[/tex] = Initial pressure = 200 kPa

[tex]P_2[/tex] = Final pressure

[tex]T_1[/tex] = Initial temperature = [tex]30^{\circ}\text{C}[/tex]

[tex]T_2[/tex] = Final temperature = [tex]40^{\circ}\text{C}[/tex]

We have the relation

[tex]\dfrac{P_2}{P_1}=\dfrac{T_2}{T_1}\\\Rightarrow P_2=\dfrac{T_2}{T_1}P_1\\\Rightarrow P_2=\dfrac{40+273.15}{30+273.15}\times 200\\\Rightarrow P_2=206.6\ \text{kPa}[/tex]

The pressure that would be exerted after the temperature change is [tex]206.6\ \text{kPa}[/tex].

Answer:

The new volume will be  

0.7 L

Explanation:

This is an illustration of Charles' law, some of the time called the temperature-volume law. It expresses that the volume of a gas is straightforwardly corresponding to the Kelvin temperature, while pressing factor and sum are held steady.  The condition is  V  1  T  1  =  V  2  T  2  , where  V  is volume and  T  is temperature in Kelvins.  Known  V  1  =  0.5 L  T  1  =  20  ∘  C  +  273.15  =  293 K  T  2  =  150  ∘  C  +  273.15  =  423 K  Obscure  V  2  Arrangement  Revise the condition to confine  V  2  . Substitute the known qualities into the condition and address.  V  2  =  V  1  T  2  T  1  V  2  =  (  0.5  L  ×  423  K  )  293  K  =  0.7 L  adjusted to one huge figure

Answer:

2.7*10^-13

coefficient= 2.7

exponent= -13

Explanation:

Answer: 2.7 x 10^-13

Explanation:

Answer:Gravity and inertia

Answer:

3) The People

Explanation:

Members Of Congress In Both Houses ( Democrats And Republicans ) Are Elected By Direct Popular Vote. Senators Are Elected Via A Statewide Vote ( The People All Around The World ) And Representatives Are Elected By Voters In Each Congressional District.

1 mole is equal to 1 moles CaCO3, or 100.0869 grams.

A mole is just a measuring scale. In reality, it's one of the International System of Units' seven foundation units (SI). When already-existing units are insufficient, new ones are created.

The mole is a SI unit that is used to quantify any quantity of a substance. The word "mole" is shortened to "mol".

A mole consists of precisely 6.022140761023 particles. The "particles" could be anything, from tiny things like electrons or atoms to enormous things like stars or elephants.

Therefore, 1 mole is equal to 1 moles CaCO3, or 100.0869 grams.

To learn more about moles, refer to the link:

https://brainly.com/question/26416088

#SPJ2

Answer:

hydroxide is the one because it is the one HAHAH

Answer:

hydroxide, OB

Explanation:

hydroxide,OB

Answer:

4.90 x 10 24 atoms

Explanation:

the 24 is the exponent for the 10

Answer:

MgO

is the correct answer

hope it helps

Answer:

D

Explanation: