Chemistry High School

please help ASAP it is maybe easy for you!!!

Answers

Answer 1

Answer:

the answer is C, 30g

Related Questions

How do water currents transfer heat different part of the ocean?

Answers

Answer:

Energy in the ocean and the atmosphere

Explanation:

Hope this helps!

What is the name for the compound formed between nitrogen and magnesium. (show your work)

Answers

Answer:

the compound formed between nitrogen and magnesium is Magnesium Nitride

please please help me i’m so confused! i will give brainleiest answer
{calcium nuclear charge 20+}
{calcium atomic mass 40amu}
1) determine the number of charged particles in the nucleus of calcium atom then deduce the number of electrons
{given the relative charge of a proton =1+\m 1 nucleon = 1amu}
2) determine its mass number A
3) determine the competition of this calcium atom

Answers

Answer:

PLEASE MARK AS BRAINLIEST!!

Explanation:

Calcium has an atomic number of 20 and an atomic mass of 40

The mass number of an isotope is the sum of the number of protons and neutrons in the atomic nucleus. The atomic number is the number of protons. The calcium-40 isotope has a mass number of 40 , and an atomic number of 20 , therefore it has 20 protons.

Nightmare Land Lab I’m very confused please help

Answers

Answer:

I can help and what are you confused about? pls hurry my lunch break will be over

Explanation:

Is cobalt magnetic? pls help

Answers

Answer:

no it is not

Explanation:

A solution is

Question 6 options:

a homogeneous mixture.

a compound.

chemically separable.

a heterogeneous mixture.

Answers

Answer:

the first one. a homogeneous mixture.

Explanation:

hope this helps :)

The table shows data for two groups of plants one grown with fertilizer and the other without fetalizer was the mean height of the plant given fertilizer

Answers

Answer:

What is the question?

Explanation:

Do you need variables orrr what is the question ?

The electron dot diagram for an atom of carbon has how many pair(s) of electrons and how many unpaired electrons

Answers

Answer:

The resultant structure is shown below. This structure contains four shared pairs of electrons, which are located on all four "sides" of carbon's electron dot structure. Each of these shared pairs was created by pairing one of carbon's unpaired electrons with an unpaired electron from chlorine.

Explanation:

*
What part does uplift play in the rock cycle?
A. It pulls rocks deep into Earth.
B. It pushes rocks up towards Earth's surface.
C. It breaks rocks into sediment.
D.It decreases pressure on buried rocks.

Answers

Answer:

Sometimes forces act to pull sections of the Earth's crust apart. At other times they are forced together. All this movement can cause rocks that were once underground to be brought up to the Earth's surface. This process is called uplift.

Explanation:

Hope this helped you out have a good day

How are light bulbs made

Answers

Answer:

Explanation: The air inside the bulb is taken out and replaced with a gaseous mixture of argon and nitrogen which help ensure a longer-life for the filament. The bulb will be tested to make sure they're up to the job.

The measure of the speed of the moving or
vibrating particles is called the

Answers

Answer:

Temperature

Explanation:

It's called temperature.

This is because, in any substance an increase in temperature means that the particles on the average will move with greater speeds, or that they have greater kinetic energy while a decrease in temperature means that the particles on the average will move with lesser speeds, or that they have lesser kinetic energy.

A scientist thinks he found a new metal, so he published a paper about this metal. About 1 week after the scientist published the paper, you noticed a problem with the paper the scientist wrote. You noticed that this metal was not a new metal. In fact, this metal was discovered years ago. You determined this when you saw the atomic emission spectrum. As you read the article, you remembered that each atomic emission spectrum is unique to each element and the atomic emission spectrum matched one that was already discovered. Using the techniques from Chemistry, you ran a Flame Test with a piece of the metal (the metal is safe to use) that you had shipped to you. You found the metal turned the flame yellow. What metal did you have in your possession?

**ANSWER CHOICES**
*Barium
*Calcium
*Strontium
*Copper
*Sodium

Answers

Answer:

Sodium

because it burns with a yellow-orange flame.

Explanation:

It relates with Barium which burns with yellowish green flame

The sum of the atomic masses of all the atoms in a compound is called the

Answers

Formula Mass ( sorry need twenty characters)

What type of energy uses turbines
with huge blades that spin when
the wind blows to generate
electricity?

Answers

Answer:

The answer is : D. Wind energy

Which of the following scenarios would not prompt the cell to start dividing

Answers

Answer:

what r the options??????

New colors produced when any two of the primary colors of pigment are mixed; red, green, and blue

Answers

Answer:

A simulated example of additive color mixing. Additive primaries act as sources of light. The primaries red, green, and blue combine pairwise to produce the additive secondaries cyan, magenta, and yellow. Combining all three primaries (center) produces white.

when all of the primary colors are mixed it makes black

Explanation:

What is the charge of a beta particle?

Answers

Answer:

Beta particles have a charge of minus 1.

Explanation:

Hope this helps!

Answer:

MARK AS BRAINLIEST ANSWER

PLZ FOLLOW ME

Explanation:

Beta particles have a mass which is half of one thousandth of the mass of a proton and carry either a single negative (electron) or positive (positron) charge. As they have a small mass and can be released with high energy, they can reach relativistic speeds (close to the speed of light)

HOPE IT HELPS YOU

The three types of ocean floor sediments are classified according to their _____.

Answers

Answer:

Origin

Explanation:

It’s origin. Good luck !

13. Sodium, Na, shows metallic properties. Identify another element that is likely to show similar metallic properties.

Answers

Answer:

19.K, potassium

Explanation:

it has all properties of metals

Cannot be chemically broken down into simpler substances

Answers

An element is the simplest form of matter that has a unique set of properties. Elements cannot be broken down into a simpler substance. Likewise, one element cannot be chemically converted into a different element.

HOPE THIS HELPS

Answer:

element

Explanation:

Because

Which covalent bond is the most polar?
a) S-O
b) C=0
c) Se-F
d) H-O
e) O=O

Answers

A I think let me know if it’s wrong

What is the force of attraction between two atoms that are combined?

a. chemical bond
b. atomic bond
c. physical property
d. magnetic bond

Answers

Answer:

Explanation

Chemical bond refers to the forces holding atoms together to form molecules and solids. This force is of an electric nature, and the attraction between electrons of one atom to the nucleus of another atom contributes to what is known as chemical bonds.

help meeeeeeeeeeeee its impossibleeeeee

Answers

Answer:

Nice! If only....

Explanation:

Answer:

omg lol what even is this

25cm3 of a 0.4M sodium hydroxide solution was diluted into 250cm3 of water. What is the molarityof the resultant solution.

Answers

Answer:

0.04 M

Explanation:

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

Initial volume of solution (V1) = 25 cm³

Initial Molarity of solution (M1) = 0.4 M

Final volume of solution (V2) = 250 cm³

Final Molarity of solution (M2) =?

We can obtain the final Molarity of the solution by using the dilution formula as illustrated below:

M1V1 = M2V2

0.4 × 25 = M2 × 250

10 = M2 × 250

Divide both side by 250

M2 = 10/250

M2 = 0.04 M

Therefore, the resulting molarity of the diluted solution is 0.04 M

Why is a synthetic gemstone (made by humans) not considered a mineral?

Answers

Answer:simce it’s manmade, it doesn’t have all the elements it needed if it was natural. It’s basically synthetic or artificial

Explanation:

does the state of matter change in sugar solution

Answers

Answer:

yes

Explanation:

the sugar was a solid but after being dissolved in a liquid it changed state

what happens when a covalent bond vs. an ionic bond is formed?

Answers

Explanation:

Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. ... A covalent bond involves a pair of electrons being shared between atoms. Atoms form covalent bonds in order to reach a more stable state.

What coefficient is needed to balance this equation? ____Fe + 4H2O --> Fe6O4 + 4 H2 *

Answers

Answer:

the answer is 1

the coefficient needed to balance this equation is 1

Explanation:

HELP ASAP
1. a hurricane destroyed an entire city, what category would it most likely be?

a Category 4 or 5

b Category X or Y

c Category 1 or 2

d Category A or B
2. What happens immediately after a hurricane makes landfall?

a It starts hailing.

b Its winds pick up speed.

c It gets stronger.

d It gets weaker.

Answers

Answer:

1. category 4 or 5

2. it gets weaker

Which of the following chemical formulas contains the most molecules?
A. 5CO
B. 3H2O
C. 2Fe2O3
D. 4C3H8

Answers

C. 2Fe2O3 would be the correct answer!

Other Questions

Yesterday, a movie theater sold 305 bags of popcorn. A large bag of popcom costs SA. A small bag of popcorn costs $1. In all, the movie theater made 5632 from popcom sales. Wite and solve a system of equation to find lowmany bags of each size of popcom were sold.The movie theater sold large bags of popcom and small bags of popcom. Who was the first person to colonize the Caribbean Islands ? 15. Name the element that has 3 energy levels and 3 valence electrons. * from one savannah to the other depending on weather1. Every year, a herd of elephantsconditions. What is the correct definition of detoxification1. A person who creates an atmosphere for an alcoholic to continue the behavior2.the process of learning to live without alcohol3. The physical process of freeing the body of an addictive substance4. A gathering where family and friends get a problem drinker to seek help a single strand of DNA helix has the code CGCTAA. which would be the complementary code on the other strand of helix Select two sentences from Passage 2 that develop the author's claim that more and more people support single-gender education. Why do you think Charles Dickens chose to make the story of Ebenezer Scrooges redemption a CHRISTMAS story instead of making it about Halloween? Explain with several details and inferences men can do a work in 32 days in how many days will 24 men complete the same work Given the equation y= X+ 9, what is the y-intercept? A.-1/2B.9C.1/2D.-9 what is the quotient of 14,87535 Meriwether Lewis and William Clark wereA. explorers sent by Jefferson to find a water route to the Pacific.B. negotiators sent by Jefferson to buy territory from France.C. leaders of American forces at the Battle of Fallen Timbers.D. the first and second governors of the Northwest Territory. Elaine and Kasmir share a $2500 prize in the ratio 3:2. How much money should they each receive? The Monetary Policy of Tazi is controlled by the country's central bank known as the Bank of Tazi. The local unit of currency is the taz. Aggregate banking statistics show that collectively the banks of Tazi hold 300 million tazes of required reserves, 75 million tazes of excess reserves, have issued 7,500 million tazes of deposits, and hold 225 million tazes of Tazian Treasury bonds. Tazians prefer to use only demand deposits and so all money is on deposit at the bank. need helpppA. Perdona que te escriba en lugar de hablar (1) personalmente. Cuando vengo (2) tu casa, siento que tienes una actitud negativa (3) m. No quieres hablar (4) ? (5) lo que yo te aprecio!B. Sabes (6) qu hora es el concierto? No estoy seguro, pero pienso ir (7) teatro ahora. Quieres (8) acompaarme?options are con, a, hacia, al, conmigo, consigo There were 350 apples on the tree in March. By September there were 420 apples on the tree. What was the percentage of change of apples on the tree? Round your answer to the nearest tenth. 2. "I'd learned to shut all of it out, because you couldn't travel more than a few miles in Kinshasawithout seeing a person dying on the side of the road, and I figured dying humans were moreimportant than dying animals." How does this quote 1) convey the mood of the story, and 2) provideinsight into the character of Sophie? Write an equivalent expression to 2x-1/2 - 4x + 4/3 Write a persuasive essay/speech to a specific audience of your choice in order to cause a purposeful change.As you write you must keep the following guidelines in mind:MLA format12-point fontTimes New RomanDouble spacedLength- based on your word count800 words or moreSAT words5 or more SAT wordsHighlight them in your essay!This must be an argumentative piece in which you build a sound persuasive piece for your target audience:Must be a complete argumentMust be angled or planned for your intended audienceMust have a format that does not distract from your purposeMust have an action that you are persuading your audience to make3 or more purposeful rhetorical choices that help build your purpose for your intended audienceExplanation of what rhetorical choices you made AND why it was a good choice for your audience Write a seven-stanza poem about elearning using the same rhyme scheme as "Ring Out, Wild Bells" and use alliteration in at least four different lines and onomatopoeia in at least four lines. Here is a hint: the rhyme scheme for each stanza is ABBA. Make sure you single space your stanzas and add the extra space between each stanza. You do not have to indent the second and third lines as Tennyson did, and you do not have to match his metrical pattern.Ring out, wild bells, to the wild sky,The flying cloud, the frosty light:The year is dying in the night;Ring out, wild bells, and let him die.Ring out the old, ring in the new,Ring, happy bells, across the snow:The year is going, let him go;Ring out the false, ring in the true.There's some of the poem.