mg(oh)2
How many H atoms are there?
How many Mg?
What is the total number of atoms?

Answers

Answer 1
There are 2 H atoms

There is 1 Mg atom

There are a total of 5 atoms

Related Questions

what is galvanization ?​

Answers

Explanation:

The most common hot dipping process for industrial applications is galvanizing, which refers to the coating of zinc over iron or steels for rust proofing. It is an extremely versatile and easy means of providing corrosion protection for construction materials exposed to atmospheric conditions

What are groups of particles held tightly together called?

Answers

It would be solids since it is stable and has a definite volume and shape so particles cannot move freely.

what is the anwser to this question

Answers

you didn't show the question

Answer:

N/A

Explanation:

"what is the anwser to this question" Is Not Available because this no question.

Please like this.

PLEASE HELP ME FILL IN THE BLANKS

Answers

Answer:

The order the words go for the blanks

Explanation:

Interia

Rest

Constant

Unbalanced

Balanced

Distance

PLEASE HELP! SEE ATTACHED!

Answers

Answer:

Ans => C => 43.3%

Explanation:

2CO + O₂ => 2CO₂

Given     1g CO = 1g/28g·mol⁻¹ = 0.036 mol CO

b/c coefficient of CO = coefficient of CO₂ => moles CO₂ = 0.036 mol = 0.036mol x 44g/mol = 1.57 gCO₂ (theoretical yield)

%Yield = (actual yield/theoretical yield) x 100% = (0.68g/1.57g) x 100% = 43.3%

what is the temperature in the fahrenheit?

Answers

A or c but I think it’s a.
The correct answer would be a

For many plants, carbon dioxide is a limiting factor.

What happens when more carbon dioxide is available to plants?

1.Plant growth increases.
2.Plant growth stays the same.
3.Plant growth decreases.
4.Plant growth may increase or decrease.

Answers

Answer:

1

Explanation:

plants use carbon dioxide and if there is more then that mean the plants will have more to use and will grow faster and populate more

You push 100kg door with force of 200 with what force does the door push back on you

Answers

Answer:

for every action there is equal and oposite reaction so door als pushes us back with same force. ie;200N.

Someone please answer this...

Answers

Answer:

5446.8 J

Explanation:

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

Mass (M) = 50 g

Initial temperature (T₁) = 70 °C

Final temperature (T₂) = 192.4 °C

Specific heat capacity (C) = 0.89 J/gºC

Heat (Q) required =?

Next, we shall determine the change in the temperature. This can be obtained as follow:

Initial temperature (T₁) = 70 °C

Final temperature (T₂) = 192.4 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 192.4 – 70

ΔT = 122.4 °C

Finally, we shall determine the heat required to heat up the block of aluminum as follow:

Mass (M) = 50 g

Specific heat capacity (C) = 0.89 J/gºC

Change in temperature (ΔT) = 122.4 °C

Heat (Q) required =?

Q = MCΔT

Q = 50 × 0.89 × 122.4

Q = 5446.8 J

Thus, the heat required to heat up the block of aluminum is 5446.8 J

All of the following rivers are labeled on the map above except the __________ River.
A. Danube
B. Volga
C. Lena
D. Ob

Answers

The answer for this problem would be c
The answer would be C

What can be concluded from the statements above?
A. A harmful compound can become harmless when its elements are separated.
B. A harmless compound can become harmful when its elements are separated.
C. Breaking a compound into its separate elements has no noticeable effects.
D.Breaking a compound into its separate elements can create carbon dioxide.

Answers

Answer:

B

Explanation:

I am not sure why

Answer:

Yea I think B as well!!!!!

What is the answer to question 7, NH4C2H3O2

Answers

The answer is Ammonium acetate

Answer:

Ammonium acetate was not sure at first but it was Ammonium acetate sorry i was confused at first

Hope this helps :D

hi...need help....thank you..

Answers

Answer:

36 oxygen atoms

Explanation:

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

Compound => 4Al₂(CO₃)₃

Number of Oxygen atom in the compound =?

The number of oxygen atom in the above compound can be obtained as follow:

4Al₂(CO₃)₃

Al = 4 × 2 = 8 atoms

C = 4 × 3 × 1 = 12 atoms

O = 4 × 3 × 3 = 36 atoms

From the simple illustration made above, there are 36 oxygen atoms in the compound.

Carlita’s body is made up of many cells. What is one thing all her cells have in common?

Answers

Answer:

All of them have a nucleus..

Explanation:

Pretty simple stuff.  There's no cell without one.

Carlita’s body is made up of many cells. The one thing that all her cells have in common is they have the same kind of genes.

What are genes?

Genes are tiny pieces of spherical hereditary material that are bead-shaped and found on chromosomes. They hold the organism's genetic makeup. The number of genes on each chromosome is incalculable.

The hereditary material that makes up chromosomes is arranged in x shapes inside the nucleus. DNA, genes, and proteins make it up. An organism's genotype is distinct from other organisms because of its distinct genetic makeup, and this distinction can be passed down from one generation to the next.

Traits may be influenced by genes, the environment, or a mixture of the two. Quantitative features can also be qualitative, such as eye colour (such as height or blood pressure).

Therefore, numerous cells make up Carlita's body. Her cells all share the same type of genes, which is the only thing that unites them.

To learn more about genes, refer to the link:

https://brainly.com/question/8046559

#SPJ6

electron configuration for Li

Answers

Answer:

the electronic configuration of Li is

=》 2, 1

and in spdf configuration it's 1s^2 2s^1

Answer: [He] 2s1

Explanation:

Electrons per shell: 2,1

Atomic number: 3

Electronegativity: 0.98

Atomic mass: 6.941 u

Discoverer: Johan August Arfwedson

Period: Period 2 element

5) Chlorine has 7 valence electrons. Neon has 8 valence electrons. Which on is more likely to undergo a
chemical reaction, and why?

Answers

Answer:

well, chlorine will undergo in a chemical reaction

Explanation:

neon has completed valence shells, so it neither need electron and or it also don't need to donate the electrons. hence it will not participate in any chemical reaction and it is stable in nature.

whereas chlorine need one more electron to complete it's valence shell and in order to be stable , so it will try to gain one electron , hence

it will take place in a chemical reaction

Which circuit hook-up design will have the brightest light bulb?A - 1 battery 1 bulb, B - 2 batteries 1 bulb, C - 3 batteries one bulb, D 2 batteries the bulb is on the other end, E 1 battery and 1 bulb on the other end

Question 5 options:

A


B


C


D


E

Heres another for you guys!

Answers

Answer:

I believe it is E because the battery has a wire, a power source(the battery), and a bulb connected together thus making a full series circuit. Furthermore, the more batteries they are to a series circuit, the more dimmer the light bulbs will be.

parts of Earth and its atmosphere where there is life

Answers

Answer:

stratosphere

Explanation:

The stratosphere is crucial to life on Earth because it contains small amounts of ozone, a form of oxygen that prevents harmful UV rays from reaching Earth.

How is a carbon atom different from a hydrogen atom?

Answers

Answer:

Carbon atom is a chemical element with the symbol C and atomic number 6 (  electrons). While Hydrogen atom is an atom of the chemical element hydrogen that have only 1 electron.

Explanation:

The carbon atom different from a hydrogen atom, because the atomic number of hydrogen is 1 . The atomic mass number of hydrogen is also one. For the carbon atom, the atomic number is 6, and the atomic mass number of carbon is 12.

What is an atomic number ?

The term atomic number is defined as the number of a chemical element in the periodic system. The elements are arranged in order of increasing number of protons in the nucleus.

The atomic number is situated at the upper left, or number of protons. In the middle is the letter symbol for the element. Atomic number is equal to the proton number or the number of protons found in the nucleus of every atom of that element.

Thus, Carbon atom is a chemical element with the symbol C and atomic number 6. Whereas hydrogen atom is an atom of the chemical element hydrogen that have only 1 electron and its symbol is H.

To learn more about an atomic number, follow the link;

https://brainly.com/question/16858932

#SPJ2

. A skydiver jumps from an airplane and opens his parachute. At some point during his fall, the downward force of gravity on the skydiver is equal to the upward force of drag on the parachute. Which of the following best describes the skydiver's motion at this point? The skydiver is gaining speed downward. The skydiver is moving at a constant speed. The skydiver is decreasing in speed.

Answers

Best to describe the skydiver’s motion is moving at a constant speed.

The upward drag and downward force is equal for the skydiver when he jumps down from the plane. Thus, he experiences a constant speed through out his motion.

What is gravitational force?

Gravitational force is a kind of force by which a body attracts other objects into its center of mass. Force exerted by the body depends on the mass and distance to it.

Earth pull every objects into its surface by gravitational fore of attraction. For moving body the the gravitational force acting downward have an acceleration due to gravity.

The skydiver experiences a force upward by the drag of a the parachute. When this force becomes equal to the downward fore of gravity, then his speed will be constant thus, no gain or lose for speed.

To find more on gravitational force, refer here:

https://brainly.com/question/12528243

#SPJ2

What is true about a chemical reaction

Answers

Answer: energy is transferred, but it can go to the products or the reactants.

Explanation: in a chemical reaction, the atoms and molecules that interact with each other are called reactants.

A chemical equation summarizes a reaction. ... All the atoms present at the start of a reaction are present at the end. true.

The best description of the Big Bang Theory is ______________
A. The universe began with cold dense energy compressing into matter after which all matter and energy began rapidly contracting toward each other.

B. The universe began with hot dense energy compressing into matter after which all matter and energy began rapidly expanding away from each other.

C. The universe began with hot dense matter after which all energy began rapidly expanding away from each other.

D. The universe began with cold, spread out matter compressing into energy, after which all matter and energy began slowly moving toward each other

Answers

The answer is the letter “c”

Answer:

B. the universe began with hot dense energy compressing into matter after which all matter and energy began to rapidly expanding away from each other.

hope it helps

Which kind of worm has a closed circulatory system?

a planarian
a fluke
a pinworm
an earthworm

Answers

An earthworm has a closed circulatory system.

The earthworm has a closed circulatory system. An earthworm circulates blood exclusively through vessels. There are three main vessels that supply the blood to organs within the earthworm.

As important as they are alive for distributing nutrients and organisms and decomposing matter, worms are also very important in the food chain. They provide a crucial protein-rich source of food for other important species like birds, hedgehogs and frogs.

They may live up to eight years, though one to two is more likely. Full size for an earthworm varies among species, ranging from less than half an inch long to nearly 10 feet.

Learn more about earthworm here:- https://brainly.com/question/13938105

#SPJ1

Use the equation weight=mg to find the weight of a 45 kg child

Answers

Answer:

well the answer is 99.2lbs I know that

What is the mass of a 270 cm3 sample of a metal with density of 3.66 g/cm3?

Answers

Answer:

988.2 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 3.66 × 270

We have the final answer as

988.2 g

Hope this helps you

can someone pls help me im tryna get this done tysm brailiest for free

Answers

Answer:

geothite

Explanation:

i did a test on this a few months ago

Answer:

sphalerite i think

Explanation:

27. How was the design of the Chernobyl plant different than most modern reactors?
a. The containment building had a dome shape to minimize impact of explosion.
b. The plant was built close to a river to have a constant supply of fresh water.
c. Graphite was used instead of water as a moderator solution in the reactor.
d. The plant design was not significantly different than other reactors.

Answers

Answer:

I think its C

Im not sure tho hehe

Could someone pls help me if you know it!!

Answers

Answer:

Beautiftul, begging under F

honest, beginning in thrid line under A

hopeful, fifth line under F

Explanation:

How many molecules of nitrogen dioxide NO2 are in 1 mole of NO2?

Answers

Answer:

The answer is 46.0055. We assume you are converting between grams NO2 and mole. You can view more details on each measurement unit: molecular weight of NO2 or mol This compound is also known as Nitrogen Dioxide.

Explanation:

hope this helps

i just need help grouping them

Answers

Answer:

Potassium: 1 Stratum: 2 Sodium: 1 Copper: 11 Calcium: 2 Lithium:1

Explanation:

The groups are columns on the periodic table

Other Questions
Please help due in 10 minutes Work out the surface area of the solid cuboid.8m5m2m whats yall fav candy! name some underrated animes i should watch. Find the molar mass of C3H60 (b) What is the solubility of lead chromate in moles per dmcube kspfor PbC10,=2.8x10*-13 mole/dm What impact (effect) does human economic activity have on the environment (2 examples) and on traditional ways of life (2 examples) in Sub-Saharan Africa? Mitch made 12 out of 40 shots during the championship game. What percent of his shot did Mitch make please answer questions number 4, 14,15 and 19change into passive voice Which type of climate does Florida have due to its latitude? Find the next three terms of the following arithmetic sequence. -10, -3, 4, 11, (Three missing numbers) Can someone please help me with this Anjalis school is selling tickets to the annual talent show. On the first day of ticket sales the school sold 18 total tickets for $98. Each adult ticket is $14 and each child ticket $3. How many of each type of ticket were sold? 100 POINTS!! PLZ HELP IT IS DUE TODAY!!!!!Conduct research and collect five possible sources on one of the following topics. You may narrow your topic if you like, so long as your area of focus relates to one of the provided subjects.slavery in the 1800swomen's rights in the 1800scrossing the Atlantic in the 1800sshipbuilding in the 1800sProvide a bibliographic citation for each source. Two sources may be websites, and at least three sources should be books, journal articles, or magazine articles, either print or digital format. Keep in mind, that while Wikipedia is often a useful place to start research, it is not a credible source and should not be used as one of your sources. For credible and reputable websites, focus on library databases, university websites, and website addresses ending with a ".edu" or ".gov".Your final answer should include a phrase or sentence that explains your selected topic, and a Works Cited page of the five sources, formatted in accordance with MLA style. Click here to view the MLA Style Guide.AND DON"T SAY SRY, THE BIBLIOGRAPHIC IS YOUR WORK!! PLEASE HELP WILL MARK BRAINLIEST AND GIVE 20 POINTS!!!A right rectangular pyramid is sliced vertically (down) at the red line by a plane not passing through the vertex of the pyramid. What is the shape of the cross-section.A Trapezoid B TriangleC RectangleD Cylinder Historically, mining and purifying uranium hasn't been a very clean process. Even transporting nuclear fuel to and from plants poses a contamination risk. And once the fuel is spent, you can't just throw it in the city dump. It's still radioactive and potentially deadly. On average, a nuclear power plant annually generates 20 metric tons of used nuclear fuel, classified as high-level radioactive waste. When you take into account every nuclear plant on Earth, the combined total climbs to roughly 2,000 metric tons a year [source: NEI]. All of this waste emits radiation and heat, meaning that it will eventually corrode any container that holds it. Choose the best concluding statement for this paragraph. A) Nuclear power is a good thing, but no one can say how much of a good thing B) The relative value of employing nuclear power depends largely on the circumstances. C) Nuclear power involves many environmental dangers, which must be taken into consideration. D) Nuclear power should be forbidden outright; whatever benefits it brings are far outweighed by the costs. A food store makes a 11-lb mixture of oatmeal, crispies, and chocolate chips. The cost of oatmeal is $1.50 per pound, crispies cost $2.00 per pound, and chocolate chips cost $1.00 per pound. The mixture calls for twice as much oatmeal as crispies. The total cost of the mixture is $17.00. How much of each ingredient did the store use? Help pls?????? With both ! Read the paragraph from the section "1. Define Small, Specific Goals."A habit is a repeated behavior. Before you can develop a new habit, you'll need to define a small, specific behavioral goal. For example, instead of setting the goal of "being more organized" try "clean my room and vacuum every Sunday morning." This goal works because it's concrete. It's a behavior that you can repeat over and over until it becomes automatic in other words, a habit.How does this paragraph develop the central idea of the article? a by elaborating on the types of habits most people want to formb by emphasizing the difficulty of becoming more organizedc by explaining the first step toward achieving a habit you wantd by showing why large habit goals don't tend to work How does this article connect to Stevensons purpose for writing Just Mercy? Respond in 2-3 complete sentences.20PT