Chemistry Middle School

Which of these elements has the greatest average atomic mass?4

Question 4 options:

C


Al


N


B

Which Of These Elements Has The Greatest Average Atomic Mass?4Question 4 Options:CAlNB

Answers

Answer 1
Think the answer is B too

Related Questions

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methane and CO2 should be it
Carbon dioxide and methane are the two most abundant greenhouse gases in the atmosphere, they are of majority in this data.

Which of the following are made mostly or entirely of proteins? (Select all that apply.)

fats

body tissues

carbohydrates

hormones

Answers

I think the answer is body tissue

Answer:

Body tissues/hormones

Explanation:

Excluding water and fat, the human body is made up almost entirely of protein. Protein is the main component of muscles, bones, organs, skin, and nails. Excluding water, muscles are composed of about 80% protein, making this nutrient especially important for athletes.

1) Protein hormones (or polypeptide hormones) are made of chains of amino acids. An example is ADH (antidiuretic hormone) which decreases blood pressure. 2) Steroid hormones are derived from lipids.

The Sun does not heat Earth evenly. Areas at different latitudes receive a varying amount of direct sunlight.

Would a city located at 70°N latitude have a warmer or colder climate? Why?

Answers

Yeah he has a point where the sunlight hits us gonna be warm but bito always the sun may hit but it could be cold or the sun may hit and it could be warm or hot

Some animals migrate, or seasonally move to a different place. In some bird populations, such as Canada geese, some birds migrate and some stay in the same area year-round. Migration can enhance the survival of individuals because it —
exerts a lot of energy.

Answers

The answer to this question is B

examples of changing direction?

Answers

Answer:

All changes in motion (speed or direction) need an outside cause. Other examples would be a soccer player kicking a moving soccer ball so it changes direction, or a hockey player hitting a sliding puck with his stick so as to redirect it.

Explanation:

What happens to the ocean water after the condensation part of the water cycle?


1 The ocean water collects in lakes and streams.
2 The ocean water turns into water vapor.
3 The ocean water falls down as precipitation.
4 The ocean water runs off Earth's surface.

Answers

Answer is number two! His explanation was correct

Answer: A

Explanation:

How are electromagnets temporary?
A.) They are only magnetic when an electric current runs through them.
B.) They are only magnetic when a gravitational wave runs through them.
C.) They are only magnetic when near a lodestone.
D.) They are only magnetic for two weeks.

Answers

Such magnets are called temporary magnets. An electromagnet is a temporary magnet. It is made by winding a coil of insulated wire round a soft iron core. When a current is passed through the coil, the magnetic field produced by the current magnetises the soft iron core. The soft iron core loses all the magnetism when the current is switched off.

So A

The answer (to this question) is A

Give an example that shows energy transfer and another one that shows energy transformation.

Answers

Answer:

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Explanation:

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Wind is caused by the uneven heating of the Earth by the sun and the Earth's own rotation.
The answer I think it is is D

How many times of o are there?

Answers

I would say 4 but you can figure it out or if you have a parent near by to
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A person swims the length of the pool, from Point X to Point Y. They complete this lap in 10 seconds. What is the speed of the swimmer?

A
15 m/s

B
5 m/s

C
50 m/s

D
500 m/s

Answers

Answer:

b

Explanation:

The answer is b if you need to find velocity

1. Define a solution and explain why it is considered a Homogeneous Mixture.

Answers

a solution is a when a solvent is mixed completely with a liquid. it would be a homogeneous mixture because it is mixed together and you can not separate it.

Answer:

They contain two or more substances mixed together.

Explanation: That's all I know about it. I know the other answer is way better but I hope this helps

HELP! I NEED HELP ON THIS!!

Answers

Answer:

producers: maple tree, tomato plant

consumer: deer, hawk

decomposer: bacteria, fungi

you're welcome

Please help me with this science question

Answers

Answer:

TRUE

Explanation:

The youngest rocks on the ocean floor are located at the oceanic ridge, an underwater mountain range formed from the spreading of tectonic plates

they are found at the oceanic ridge

What elements is mercuric oxide composed of?

Answers

Answer:

Lavoisier reacted mercury with oxygen to form mercuric oxide

Binary compounds are compounds composed of just two elements. The simplest kind of decomposition reaction is when a binary compound decomposes into its elements. Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas.

Fill in the blank:

Tree roots speed up ____ by creating and widening cracks in rocks! Tree roots slow down ____ by holding sediments in place so they're not transported away as quickly.

Answers to pick:

1) Weathering, erosion
2) Erosion, weathering​

Answers

Answer:

Weathering, Erosion

Explanation:

Plants and animals can be agents of mechanical weathering. The seed of a tree may sprout in soil that has collected in a cracked rock. As the roots grow, they widen the cracks, eventually breaking the rock into pieces. Over time, trees can break apart even large rocks.

Tree root systems have a handful of large roots that branch out into a network of smaller roots that often extend out far beyond their branches do. These root systems prevent erosion by holding the soil in place and improving drainage which helps water get absorbed into the soil instead of just running over the top.

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Weathering and erosion

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Answers

Answer:

C

Explanation:

The ozone layer absorbs ultraviolet rays from the sun.

It’s c, I’m sure of it

Identify which type of chemical reaction is shown:
2NaF + Br2 → 2NaBr + F2

Answer choices:
Single Replacement/Displacement
Synthesis/Combination
Double Replacement/Displacement
Decomposition
Combustion

Answers

That is single replacement/displacement

An element that is a silver-colored liquid is?

a hydrogen
b mercury
c silver
d carbon

Answers

B. Mercury is the answer

Answer:

mercury

Explanation:

silver in color, and you can find in on the periodic table

How many atoms of S are there?

Answers

Atoms of sulfur = 9.60⋅g32.06⋅g⋅mol−1×6.022×1023⋅mol−1 . Because the units all cancel out, the answer is clearly a number, ≅2×1023 as required.
There are 4 in total of S Im your question

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Answers

Answer:

C

Explanation:

Can y’all help me with this last bit of my hw? I don’t really understand it and I would really appreciate it if you could help me.

The questions to the picture is below:

A chemist mixer two substances together: a colorless liquid with a strong strong smell and a white solid with no smell. The substances’ repeating groups of atoms are shown on the left. After they were mixed, the chemist analyzed the results and found two substances, One ending substance had the resorting group of atoms shown above on the right.

Is the ending substance the same as the colorless liquid? What happened to the atoms of the starting substances when the ending substances formed? Be sure to explain your answers to both of these questions.

Answers

"A mineral is a homogeneous (which means composed of parts or elements that are all of the same kind) naturally occurring substance with a definite but not necessarily fixed chemical composition. Most minerals are solids with an ordered atomic arrangement, and most are inorganic in the chemical sense of that word".

Amy uses a piece of lab equipment to change electrical energy into thermal energy. What did she most likey do?

A. Warmed liquid in a test tube over a candle flame
B. Used a hot plate to boil a beaker of water
C. Mixed two chemicals to produce heat
D. Used a thermometer to measure the temperature of ice water

Answers

Answer:

The right answer is b ( using a hot plate to boil a beaker of water

Explanation:

To power the hot plate you have to have electricals that form heat on the metal plate of the top which then comes in contact with the glass beaker which finally boils the water causing heat to form called water vapor from the heat of the hot plate to the water.

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Answers

Answer:

there are blanks in the picture. what kind of winds are being asked about?

How do you think other galaxies might be similar or different from the Milky Way Galaxy?

Answers

Answer:

Going off of our own galaxy, one could assume that the universe is filled with other planets, moons, and stars. The interesting thing to me would be the shape of the Milky Way. It would be interesting to see how other galaxies have formed. As in, are they spherical, oblong, in the shape of a square?

There are also endless possibilities for undiscovered metal alloys in space, which is very exciting to me. The idea of space mining has been brought up many times before, but if there are new and useful metals, precious gems, or minerals that are yet to be discovered outside of the milky way, they could help restore Earth.

Other (well all if not most) galaxies are mostly made up of stars, planets, asteroids, and dust which is something that makes it similar to our galaxy .

They can be different by different amounts of types of stars, they might have other organisms that are alive just like us but they’d be different, yk?

That’s all i can think of sorry :/

What is the definition of a Macronutrient?

Answers

a chemical element (e.g., potassium, magnesium, calcium) required in large amounts for plant growth and development.
macronutrients are the nutritive components of food that the body needs for energy and to maintain the body's structure and systems

Question NO LINKS!
Which air mass brings high temperatures and precipitation to Gwinnett County in late spring?

Answers

Answer:

Climate of Georgia. Maritime tropical air masses dominate the climate in summer, but in other seasons continental polar air masses are not uncommon.

Explanation:

I need help! Please give me an answer

Answers

You need to show us what you’re talking about first
All phases of the same substance have the same attraction

How many atoms of Br are there?How many atoms of Br are there?

Answers

Answer:

8

Explanation:

There are 8 atoms of Br because there are two molecules of 4 atoms of Br. 4 x 2 = 8.

Answer: 1 mol Br contains 6.022×1023Br atoms;its mass is 79.90 g.

Explanation:

: I mole or bromine refers to 6×10^23 molecules of bromine. But 1 molecule of bromine has 2 atoms. Hence the atom count will be exactly twice.

How do air masses flow?


from regions of low pressure to high pressure

it depends on the time of the day

from regions of high pressure to low pressure

whichever way the wind blows

Answers

How do air masses flow?

from regions of high pressure to low pressure

.

In general, cold air masses tend to flow toward the equator and warm air masses tend to flow toward the poles.

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