Write a summary of the portion of the "Gettysburg Address" by Abraham Lincoln.

What does the chemical formula CaCl2 show about the compound it represents?

It is made up of one element.
It is made up of two elements.
It is made up of three elements.
It is made up of four elements.

Answer:

First answer is correct, it is a wind vane, second one is the 3rd one

Explanation:

it would he more humid since its closerr:) thank you

The difference between the number of neutrons between an atom of fluorine and an atom of argon is 12

The number of neutrons is obtained by subtracting the number of protons from the mass number of the atom. We can calculate the number of neutrons in each element given this information

Mass number of fluorine = 19

Atomic number of fluorine = 9

Mass number of Argon = 40

Atomic number of argon = 18

Hence;

Number of neutrons in fluorine = 19 - 9 = 10

Number of neutrons in argon = 40 - 18 = 22

Difference between number of neutrons in argon and number of neutrons in fluorine = 22 - 10 = 12

Learn more: https://brainly.com/question/5803619

Answer:

Yes

Explanation:

Water being burnt in a pot of fire results in H20 Gas.

Answer:When you boil water, the heat given off is a sign that chemical bonds are being broken and new ones are being fore broken.

Explanation: false Water boiling is a physical change and not a chemical change, therefore no bonds are broken.

hope this helps

Answer:

1. A

2. B and C

Explanation:

got it right in edg (see pic)

Answer:

A B C

Explanation:

person above is right

Answer:

Physical change is when change occur physically in a substance. It is usually reversible. It includes change in colour, shape, texture, volume etc.

Examples: Cutting of paper, making moulded stuff from dough etc.

Chemical change is when change occurs chemically in a substance. It is non-reversible. When ever a physical change happens, a new substance if formed.

Examples: Burning of paper, transformation of milk into curd etc.

Answer:

This energy is mostly seen when the ball is kicked in the air. It is called potential energy because it has the potential to do work. If the soccer ball is raised to a certain height, at the top, before it gains Kinetic Energy, it has the Potential stored that it will be used once it starts to move.

Explanation:

Hello! Please insert your item as an image and not a document so that I may view it!!

Answer:

The answer is A, Outer Core.

Explanation:

Your welcome and have a wonderfull day :P

Answer:

a

Explanation:

i just took the test

Answer:

they just add heat, then it turns to water vapor

Explanation:

The first h20 is water the arrow represents adding heat, and the second h20 represent water vapor (water as a gas)

Answer:

Boiling is not a chemical reaction. It is a physical reaction because after being heated up to a boil turning into steam, it eventually cools back down to water. Like evaporation and then rain.

Explanation:

Answer:

As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases. If the humidity is at 100 percent (because it's snowing), the temperature decreases more slowly with height.

Explanation:

Hopes this helps and plz mark me brainliest!

Answer:

hope this is what u want

hope it helps

Answer:

the dude above me helped

Explanation:

THE DUDE ABOVE ME

Answer:

Sorry but I don't know

Explanation:

Could you share a picture of what it looks like or what your supposed to base your answer on?

Answer:

Explanation:

yeeah much more ddifficult

Answer:

A way to prove a theory is true

Explanation:

I hope this helps

Answer:

A way to prove a theory is true

-hope this the correct answer and if not i hope it at least helped but regardless have a good rest of your day :)

Explanation:

Answer:

:)

Explanation:

Recycling paper helps to reduce greenhouse gas emissions that can contribute to climate change. It takes 70% less energy and water to recycle paper than to create new paper from trees. Manufacturing with recovered paper cuts down on pollution that contributes to smog (and ill health).

Answer:

will help us use less energy. When we just keep filling landfills we take space away for growing trees to benefit our environment

Answer:

1 is heat

2 is nuclear energy

3 is chemical energy

4 is mechanical energy

5 is gravitational energy

6 is light.

Explanation:

My math homework is literally the same thing.

1. energy of object above the ground- gravitational energy

2. stored in the bonds of atoms and molecules- chemical energy

3. stored in the nuclues of atom- nuclear energy

4. energy  of vibrating molecules- heat

5. movement of object used to work- mechanical energy- light

Answer:

Science and society

Explanation:

Answer:

(4) mechanical digestion

(5) chemical digestion

(6) enzymes

(7) pharynx

(8) peristalsis

Answer:

(4) Mechanical digestion

(5) Chemical digestion

(6) Enzymes

(7) pharynx

(8) peristalsis

Answer:

need points sorry ill help you i promise

Explanation:

Answer:

heliosphere

Explanation:

The heliosphere shields the solar system so its not a physical system

Please give me brainliest ❤ also good luck!!! also idk if this explains it well...idk how to explain it though....but i know it is right

Answer:

flavio because you need a source of energy in order for it to have energy

Explanation:

can i have brainliest so i can rank up

Answer:

Basalt forms when lava cools quickly at the surface. This quick cooling rate results in very small mineral grains. Pumice is formed when volcanoes erupt explosively. It comes from the same kind of magma which would form granite or rhyolite, that is, a magma that contains lots of silica (quartz). Magma with lots of silica is usually thick and sticky

Explanation:

Answer:

"If magma with the same composition reaches the surface, it forms extrusive rocks such as rhyolite and pumice. Basalt is an extrusive igneous rock that forms the ocean floor. ... Also, water and wind break apart and carry away surface rocks. Then deeper rocks are uncovered at the surface."

Explanation:

Answer:

Punnett Square

Explanation:

Answer:

The answer is 2.

Explanation:

Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.

Hope this helps :)

Answer:

The purpose of genes is to store information. Each gene contains the information required to build specific proteins needed in an organism.

Explanation:

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Option 3 is your answer

Weather describes daily conditions and climate describes averages

Have a nice day!