Chemistry Middle School

Because Mg and O2 are both elements, no bonds were broken during the formation of MgO.


True or false

Answers

Answer 1

Answer:

false

Explanation

The chemical bonds were broken when creating the compound MgO.

Answer 2
False because this is not true

Related Questions

plzz help i will give brillants and stars and thx.

Answers

hdhdjejdhebdehxhshwhdb d nonsense
Vaporization turns liquid into gas,about the energy one I’m not completely sure but it’s energy added the particles slow down/confiscation transforms a gas into a liquid energy removed and the particles speed up

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

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

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

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.

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.

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

Answers

Answer:

░░░░░▐▀█▀▌░░░░▀█▄░░░

░░░░░▐█▄█▌░░░░░░▀█▄░░

░░░░░░▀▄▀░░░▄▄▄▄▄▀▀░░

░░░░▄▄▄██▀▀▀▀░░░░░░░

░░░█▀▄▄▄█░▀▀░░

░░░▌░▄▄▄▐▌▀▀▀░░ This is Bob

▄░▐░░░▄▄░█░▀▀ ░░

▀█▌░░░▄░▀█▀░▀ ░░ Copy And Paste Him onto all of ur brainly answers

░░░░░░░▄▄▐▌▄▄░░░ So, He Can Take

░░░░░░░▀███▀█░▄░░ Over brainly

░░░░░░▐▌▀▄▀▄▀▐▄░░

░░░░░░▐▀░░░░░░▐▌░░

░░░░░░█░░░░░░░░█

Explanation:

Giving brainliest if u answer correctly <3
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

Answers

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.

giving brainliest For best answer~~ UwU
Plz answer fast :>~

Answers

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

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

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

Question 4 options:

C


Al


N


B

Answers

Think the answer is B too

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

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.

PLZ ANSWER FOR BRAINLIEST

Answers

Answer:

C

Explanation:

The ozone layer absorbs ultraviolet rays from the sun.

It’s c, I’m sure of it

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

What are two ways to increase the strength of an electromagnet?

Add more turns of the wire to the solenoid.
Increase the amount of current that passes through the wire.
Decrease the amount of current that passes through the wire.
Decrease the turns of the wire to the solenoid.

Answers

Answer: Two ways to increase the strength of an electromagnet is

Add more turns of the wire to the solenoid.

and

Increase the amount of current that passes through the wire.

Explanation: Factors that affect the strength of electromagnets are the nature of the core material.

Isn't gelatin just edible slime

Answers

Answer:

Huh?

Explanation:

am confused as u lol

tx for free points

Answer:

technically yes.... anyways can you give me brainliest I ONLY NEED ONE MORE

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.

Hope this helps

All the love, Ya boi Fraser :)

Weathering and erosion

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

Giving brainliest 4 best answer :> ~~

Answers

Answer:

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

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.

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:

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 :/

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 is Earth’s energy budget?
Select one:

a. The total cost of the energy produced by all power plants on Earth.

b. The total energy produced by all power plants on Earth.

c. The sum of Earth’s incoming solar energy minus Earth’s outgoing energy.

d. The sum of Earth’s internal energy plus Earth’s incoming solar energy.

Answers

the answer is b, because the earth produced all of it,

HELP! I NEED HELP ON THIS!!

Answers

Answer:

producers: maple tree, tomato plant

consumer: deer, hawk

decomposer: bacteria, fungi

you're welcome

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

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

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:

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
Other Questions
PLEASE HELP!!!!!! I AM GIVING BRAINLIEST!!!!! 0.6x = 87SOLVE IT Name the figure shown. NO LINKS OR FILES WILL MARK BRAINLIEST FOR BEST ANSWER PLZZ NEED ASAP!Use the statement about William Golding's Lord of the Flies to complete the activity.A plane carrying a group of young schoolboys flying from Britain to escape war is shot down. The plane crashes on a desert island, stranding the boys there with no hope of rescue. Together, the boys explore the island, elect a leader, and devise strategies in the hopes of attracting any nearby ships or planes so that they may be rescued.At first, the boys enjoy their time on the island, free of the grown-ups who usually run their lives. However, because of this, they also begin to neglect the day-to-day necessities, such as looking for food or maintaining the signal fire. As a result, the group they've built begins to deteriorate, and an older, more savage boy takes over the group. A fear develops that there is a monster living in the jungle.As order gives way to chaos, the older boys mistakenly murder a younger boy, set a fire within the jungle, and lead a manhunt for one of the boys. In the end, a British naval ship lands on the island to rescue the boys. Upon seeing an officer and learning that he is safe, the main character despairs in the idea that he will never be the same:"Ralph wept for the end of innocence, the darkness of mans heart, and the fall through the air of a true, wise friend called Piggy."Write a paragraph identifying and explaining the theme present in this passage and how it relates to any universal themes. Determine the value of x in the figure Graph #1 (on the left):Select]eGraph #2 (on the right) [Select ]Someone answer quickly 13. Qumartes?A. A. explicaB.B. se escribeC.C. comprendesD. D. quiere decir Which of the following is true of both the Aztec and Egyptian civilizations? They were based on finding ways to use available water sources. They were lead by pharaohs. They were conquered by the Spanish. They wrote in hieratic script.have a good day!!! Question 320 ptsWhat is the area of the triangle below? (Just put in the number not the unit)4.5 feet4.5 feet13.4 feet8.8 feetNO LINKS PLEASE HURRY Hydrochloric acid is a ?A. Strong electrolyteB. Weak electrolyteC. Non-electrolyte D. E. Molecular compound What part of the brain analyzes why you are feeling pain before your reflexes react? Jamillah took her dog, Tyson, to the vet. Last year, thedifference in his weight from the previous year was -2.1 pounds. This year, the difference in his weight from last year was 3.4 pounds. What is the difference in Tyson's weight from 2 years ago?A: 5.5 poundsB: 1.3 poundsC: -5.5 poundsD: -1.3 poundsPlss I need the answer fast!! Where did the Pennsylvania Dutch immigrate from?France, Switzerland, and GermanyEngland and IrelandHolland and the NetherlandsHungary, Budapest, and Prague Which equation illustrates the multiplicative identity property?0 6=6400 6= 6(1)O 6+6=12O 6+6=0 Determine if the set of points (-1,3), (2,5), (3,8), and (4,5) is a function. Explain.The set of points is not a function because the range consists of the value 5 two times.The set of points is a function because each value in the domain corresponds to exactly one value in the range.The set of points is not a function because each value in the domain corresponds to exactly one value in the range. The set of points is a function because the range consists of the value five two times. please just help please How many seconds are there in 203060708030506040 hours? I NEED HELP ASP. IT IS SO HARD order from smallest to largest 2/6, 3/4 , 5/8 A small jar of coins has 20 dimes and 8 nickels. A large jar has the same ratio of dimes to nickels. If the large jar has 36 nickels, how many dimes does it contain? MS. Potts washed 2/3 of her laundry. Her son washed 1/4 of it. Who washed most of the laundry? How much of the laundry still needs to be washed?