the volume of one mole of a substance is 22.4 L at STP for all what​

Answer:

The molar volume of a gas is the volume of one mole of a gas at STP. At STP, one mole (6.02 × 1023 representative particles) of any gas occupies a volume of 22.4 L (Figure below). A mole of any gas occupies 22.4 L at standard temperature and pressure (0°C and 1 atm).

Explanation:

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Photosynthesis begins when chlorophyll molecules in the plant absorb light energy from the sun. Along with sunlight, CARBON DIOXIDE (CO2)/OXYGEN (O2) and HYDROGEN (H)/WATER (H2O) are also taken in by the plant. Light energy from the sun FUSES/SPLITS water molecules (H2O) into hydrogen (H) atoms and oxygen (O) atoms. Pairs of oxygen atoms combine to form oxygen gas (O2). The oxygen gas (O2) leaves the plant as a WASTE/SUGAR product. The carbon dioxide (CO2) and hydrogen (H) molecules are made into WASTE/SUGARS, which are used by the plant to make energy. Also during this process, light energy from the sun transforms into THERMAL/CHEMICAL energy that is stored in sugars.

Explain what natural selection and adaptation are

Name and Title:

Include your name, instructor's name, date, and name of lab.


Objectives(s):

In your own words, what is the purpose of this lab?


Hypothesis:

In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.


Procedure:

The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.


Data:

Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element.

Hydrogen Helium Lithium Sodium Carbon Nitrogen
Moon One












Moon Two












Planet One












Planet Two













Conclusion:

Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.

Using two to three sentences, summarize what you investigated and observed in this lab.
Astronomers use a wide variety of technology to explore space and the electromagnetic spectrum; why do you believe it is essential to use many types of equipment when studying space?
If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth? Explain why. (Hint: Think about the carbon cycle.)
We know that the electromagnetic spectrum uses wavelengths and frequencies to determine a lot about outer space. How does it help us find out the make-up of stars?
Why might it be useful to determine the elements that a planet or moon is made up of?

Help me!!!
will give the brainliest!!
plz answer correctly
Urgent!!!​

How many pairs of chromosome instructions are in each human sperm and egg cell?

What was one was one important impact of Supreme Court's ruling in Bush v. Gore

Which best describes why it is important for a scientist to use the metric system when recording data?

A.so the data can be proven in the scientist’s next experiment
B.so the data can be shared and understood around the world
C.so the data can be used in mathematical formulas and models
D.so the data can be accurate and precise in each experiment

Jane is a graphic designer who is hired by several different companies to create logos and marketing designs. As part of her final project, she makes sure to deliver images in several resolutions. Why is the resolution of an image important? Why would several different versions of the same image be needed? What would happen if a low-resolution image was used on a large poster? Explain your reasoning.

25 points! brainliest for correct answer!
what are TWO characteristics of a neutron?
A. found outside the nucleus
B. negative electric charge
C. no electric charge
D. found in the nucleus

help


Nicole has 2 glasses on the counter: one of water and one of sugar-water. She is baking a cake and needs to use the sugar-water for the glaze. Both glasses look identical, but one contains a mixture and the other contains a compound.

Is sugar-water a mixture or a compound? Define mixtures and compounds, and explain how, without tasting it, Nicole can test to make sure she is using the sugar-water in the glaze.

I'm not sure if I choose the right subject but can someone help me

Argument 1
The water in the puddle that Claire observed evaporated. The highest temperature was 32°C (90°F). Since the puddle was there in the morning and gone later in the day, it must have evaporated.



Argument 2
The water in the puddle that Claire observed evaporated. Since the highest temperature was 32°C (90°F), we know that it was a warm day. When water gets hot, it can change from liquid to gas. This is called evaporation. I think the water became so warm that it became water vapor (gas), and that’s why the puddle was gone by the afternoon.


1. Which argument is more convincing?


2. Why is the argument you selected more convincing?

A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure water. Which tools would most help the student test this prediction?
Will give brainly

pls i need answers to the 1st, 2nd, and 3rd question

Is there a relationship between CO2 levels rising and heavy precipitation? If so, what is it?

Instead of developing embryo inside the egg, the embryo grows and develops inside the mother's womb until the baby is born. This belongs to what type of group?

What would be a good scientific reason to explain why plants that receive more light have more growth?

Light is required for plants to absorb water

Only water influences plant growth

The radiation emitted from the light increases the moisture in the soil

Plants need light for the process of photosynthesis. Without photosynthesis, plants cannot make their own food.

What differs between a radioactive isotope and a stable isotope of the same element?

(A) Radioactive isotopes last for less time.
(B) Stable isotopes are usually heavier.
(C) Stable isotopes break down quickly.
(D) Radioactive isotopes do not break down.

*NOTE* i do not need a explanation just the letter :)

What kind of rocks would you expect to see on Mars? What evidence supports your response?

Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)

HELP RTIGHT NOWWWWWWWWWWWWWWWWW

Imagine that you have just made a fresh apple pie. When you take it out of the oven, it is so hot, you can't even hold it in your hand; so you place it on the kitchen table. Now, several minutes later, you are able to cut a slice and eat it. The apple pie has cooled, the question now is, where has the heat gone? Select which of the following below is most likely to have occurred and provide a well developed, written explanation for your response using scientific principles learned in class.

Is the process of making a glass of lemonade a physical or chemical change?? Explain.

Imagine that you are in charge of helping a town named
Greenville choose the form of energy best suited to the
needs and preferences of its citizens. Use this information
to help you make a decision:
• The people of Greenville want to reduce their reliance
on coal for electricity
• Greenville is located far from any coastlines.
• Greenville has a large amount of productive farmland.
• Greenville weather is calm for much of the year.
Which form of energy would best suit Greenville's needs and preferences?
A. Natural gas
B. Biomass
ОООО
C. Tidal power
OD. Wind power
SUBMIT

Solar System Web quest Name: Addison Thurman Class Period: 2nd

Use the following to answer 1 & 2.

http://starchild.gsfc.nasa.gov/docs/StarChild/universe_level1/universe.html

Where is our solar system located in the Milky Way Galaxy?

Where is our solar system located in the Universe?


Using the following websites, Complete the table below to Compare and contrast the planets.

a.http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/solar_system.html

b. http://nineplanets.org/

c. http://www.pbs.org/wgbh/nova/space/tour-solar-system.html



Planet

Size relative to Earth

(Diameter-miles/km)

Surface and Atmospheric features.

Include: temp. gases, etc.

Relative distance from the sun (miles/kilometers)

Number of Satellites/ Moons

Special Features or Characteristics





Mercury

















Venus





















Earth





















Mars





















Jupiter





















Saturn























Uranus

















Neptune



















Dwarf Planet - Pluto

















The Big Bang – Use the following url to go through the History of the formation of our Universe and Planet.

Click on this site and Launch the Interactive Evolution of the Universe: http://www.pbs.org/wgbh/nova/space/history-universe.html





GAMES

More NASA Games http://spaceplace.nasa.gov/menu/play/

SciGames http://www.scigames.org/

Answer al of these and I will make you brainiest whoever gets it first.

can praseodymium conduct electricity

help me with this I only have one more
1156 g/L
= ________ kg/mL

Give an example of how you could use different reference frames for the same motion.

Pls could help me complete the "standart form" part :(