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Answer:

Kr (molar mass=83.80 g/mol)

Explanation:

as it is the heaviest i think

Explanation:

i am not sure but i think is C

Answer:

1) sunlight

2) radiation

3) radiant Energy

4) heat

5) temperature

Explanation:

1) Solar energy is derived from the sunlight.

2) Now, solar energy gets to the Earth's atmosphere by electromagnetic radiation which warms the Earth's surface.

3) Sunlight is a form of radiant energy because the light from the sun is transmitted by radiation to the earth.

4) When sunlight reaches the earth it is converted to heat energy.

5) Due to the heat from the sun, it will increase the Temperature of objects.

Answer:

The percentage yield of LiOH is 39.9%

Explanation:

From the question given above, the following data were obtained:

Theoretical yield = 47.4 g

Actual yield = 18.9 g

Percentage yield =?

The percentage yield of LiOH can be obtained as follow:

Percentage yield = Actual yield / Theoretical yield × 100

Percentage yield = 18.9 / 47.4 × 100

Percentage yield = 1890 / 47.4

Percentage yield = 39.9%

Therefore, percentage yield of LiOH is 39.9%

Answer:

1 2NaHCO3+H2SO4->Na2SO4+2H2O+2CO2

Answer:

a.

Explanation:

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Answer:

Gravity of sun

Explanation:

The Gravity force of the sun holds the planets and other planetary body in their certain orbits. The Earth and other planets circles the Sun due to the gravitational force of the Sun, much as the Moon orbits the Earth due to the gravitational pull of the planet Earth. Moon revolve around earth and same earth and other planet revolve around sun.

Answer:

it is mass

Explanation:

I took the test

Answer:

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Answer:

13 L

Explanation:

v1/n1 = v2/n2

8.5 L/1.2 mol = v2/1.85 mol

7 L x 1.85 mol = v2/1.85 mol x 1.85 mol

13 L = v2

Answer:

13

Explanation:

Answer:

It C

Explanation: Because consumers the producers and the producers get their energy from the Sun so that means that consumers are getting all their food from things that start that with the Sun.

The distribution of energy and nutrients through the ecosystem is defined as the food chain. The producers and consumers are the members of food chain. The correct option is C.

The organisms which can produce food by themselves from simple inorganic substances like water, sunlight, carbon dioxide are defined as producers. Examples are green plants and algae.

The consumers are the organisms which consume the food prepared by producers. Examples are human beings and cows. The consumers are dependent on the producers for energy and food.

The producers prepare food through the process photosynthesis. They are the main source of energy for other trophic levels. The producers have autotrophic mode of nutrition.

The consumers have heterotrophic mode of nutrition. They have to eat to gain energy otherwise they will die.

Thus the correct option is C - Both producers and consumers use energy that started from the sun.

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Answer:

please give me brainlist and follow

Explanation:

About 110 g . Explanation: Your tool of choice here will be the solubility graph for potassium nitrate, KNO3 , in water.

Answer:

Explanation: reaction is 2 Na(s) + 2 H2O (l) ⇒ 2 NaOH (aq) + H2(g)

Answer:look at the picture below

Explanation:

Answer:

diamond is the ans

Explanation:

hope it helped!!!

Answer:

The Statue of Liberty represents Libertas, the Roman Goddess of Liberty. She is holding a torch and a tablet with the date of the US Declaration of Independence. She is dressed in a robe, wears a crown, and has a broken chain at her feet. The Statue of Liberty was a gift from France to the United States. It was designed by the sculptor Frederic Auguste Bartholdi and built by Gustave Eiffel in 1886. The US designed and paid for the granite and concrete foundation .Over the next three decades, the statue slowly began to change color. Currently, the Statue of Liberty is green in color. How did this happen? The air and water reacted with the copper metal and resulted in oxidation. This oxidation created a layer of patina, a copper carbonate. This does not harm the statue and actually helps to protect the copper sheets below.

Explanation:

hope this helps!

~mina

Answer:

during the Revolutionary War, France became a close friend of Americans seeking freedom from Great Britain. To honor its friendship with America, France gave the U.S. a special gift: sculptor Frederic-Auguste Bartholdi's beautiful statue called Liberty Enlightening the World.

The Statue of Liberty arrived in New York Harbor on June 19, 1885. It came in 350 pieces packed into 214 crates. The statue was assembled on a pedestal base built by the United States. The 151-foot tall statue has become a worldwide symbol of freedom and democracy.

The Statue of Liberty's home is Bedloe's Island (renamed Liberty Island in 1956). From 1892 to 1943, “Lady Liberty" greeted over 12 million immigrants as they arrived on boats at the nearby Ellis Island Immigration Station.

Explanation:

hope this helps, have a good day :)

~evita

Answer:

Explanation:

number 5

S∨8  +8O∨2 =8SO∨2

Answer:

D

Explanation:

The environment always changes, and sometimes it can be a bad thing. Hope this helps! plz mark as brainliest!

Answer:

hi

Explanation:

I'm just figuring this out what am I doing

Answer:

C. Carbon dioxide

Explanation:

Carbon dioxide is one of the end-product of combustion reactions involving many fuels today.

With the rapid increase in urbanization and technological development, man demand for energy increased tremendously. The discovery of fossil fuels paved the way for the astronomical increase in the concentration of carbon dioxide in the atmosphere. The burning of fossil fuels like coal and oil invovles the process where the carbon atoms present in these fuels combine with oxygen in the air to make CO2. This has resulted in an increase in the concentration of atmospheric carbon dioxide (CO2).

The burning fossil fuels for electricity, industry, heat, and transportation are the major sources of the emossion of carbon dioxide.

Also, the cutting down of trees for paper production, building construction and for the establishment of settlements also increase the concentration of carbon dioxide in the atmosphere. Trees are help remove carbon dioxide from the atmosphere through the process of photosynthesis. However, when these trees are cut down, carbon dioxide accumulates in the atmosphere.

Answer:

d. delta H is positive, and delta S is positive

Explanation:

The process of dissolution of NH4Cl is:

NH4Cl(s) → NH4+(aq) + Cl-(aq)

As the solution is cooled, the process is absorbing energy, that means ΔH > 0. (ΔH < 0 when the heat is released).

As there are produced 2 ions from 1 solid molecule, the disorder is increasing and ΔS > 0

The right answer is:

Answer:

The light is most intense where it strikes Earth _ directly_______ to its surface.

Explanation:

Hope this helps :)

Answer: the Earth's equator

Explanation:

Answer:

An empire is a sovereign state consisting of of several countries  or peoples subject towards the authority of a single person often an emperor or empress. A kingdom consists of land from the same region or area head under the nominal rule of king or queen. Hope this helped!! :D

Answer:

False

Explanation:

The octet rule forms the basis for chemical reactions. The octet rule states that; an atom is only stable when it has eight electrons around its outermost shell.

This implies that the driving force behind chemical reaction is the attainment of an octet structure(eight electrons in the outermost shell of each of the bonding atoms).

An atom that has only six electrons in its outermost shell is not yet stable according to the demand of the octet rule. Hence, the statement "chemical reactions happen and compounds form because they're trying to get 6 electrons in their outer orbitals" is false.

B. The study of matter and energy

What is the study of matter and energy and how do they interact?

Physics is the scientific study of matter and energy and how they interact with each other. This energy can take the form of motion, light, electricity, radiation, gravity - just about anything, honestly. Physics deals with matter on scales ranging from sub-atomic particles (i.e. the particles that make up the atom and the particles that make up those particles) to stars and even entire galaxies.

What are energy and its relation to matter?

The mass of these three particles is less than the mass of a neutron, so they each get some energy as well. So energy and matter are really the same things. Completely interchangeable. And finally, Although energy and mass are related through special relativity, mass and space are related through general relativity.

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Answer: B. The study of matter and energy

Explanation: Physical science studies Chemistry and physics

"The two main branches of physical science are physics and chemistry. Both types of physical science involve the study of MATTER. Chemistry is the study of the properties of matter and its interactions with other matter, where physics is the study of how matter is affected by ENERGY "

Write it down in your notes!

Answer:

All elements in Group 18 are called noble gases and are nonreactive which means they don’t readily react with other elements.

Explanation:

Answer:

COLD

Explanation:

Answer:

hot

Explanation:

anything above 100 is consider hot

Answer:

D

Explanation:

Male bowerbirds use their intelligence to impress the females, constructing elaborate structures called bowers to attract mates.

Answer: D. Behavior

Explanation: this is what it says the corresponding answer is on study island