When hydrogen reacts with active metals, it
shares electrons
gains one electron
loses one electron
O loses two electrons

Answers

Answer 1
Atomic hydrogen is very reactive. It combines with most elements to form hydrides (e.g., sodium hydride, NaH), and it reduces metallic oxides, a reaction that produces the metal in its elemental state. ... Almost all metals and nonmetals react with hydrogen at high temperatures.

Related Questions

12) Which model of the atom is thought to be true?
a. Protons, electrons, and neutrons are evenly distributed throughout the volume of
the atom.
b. The nucleus is made of protons, electrons, and neutrons.
c. Electrons are distributed around the nucleus and occupy almost all the volume of
the atom.
d. The nucleus is made of electrons and protons.

Answers

Answer:

B

Explanation:

The neucles is surrounded by electrons. Electrons occupy most of the volume of the atom.

Atomic Model:

Atoms are the smallest unit of elements, which form bonds with others. In an atom, electrons revolve around the nucleus.

The nucleus is composed of positively charged protons and neutrons. The nucleus occupies a very small part of the atom.

Electrons are negatively charged particles, they are found around the nucleus and occupy most of the part of the atom.

Therefore, The neucles is surrounded by electrons. Electrons occupy most of the volume of the atom.

To know more about Atomic Model:

https://brainly.com/question/1596638

WILL MARK BRAINLIEST!
Which of the following is not a catalyst?
A. Phosphorus
B. Platinum
C. Enzymes
D. Nickel

Answers

Answer: platinum

Explanation:

i think

hhhhhhhhhheeelp !!! give 20 pintos

Answers

Answer:

you can run out of money the supplier could run out or they could stop making the renewable.

Explanation:

In a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele B is for a normal-sized body, and the alleles is for a dwarf body

Answers

Answer:

n a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele for a normal-sized body (B) is dominant over the allele for a dwarf body (b).

Squeaky, a rat from this group, has a dwarf body.

Based on Squeaky's phenotype for the body size trait, which of the following could be Squeaky's genotype for the body size gene?

Explanation: can someone pls help?

two negative charges are placed near each other. what happens between the charges

Answers

Answer:

repulsion

Explanation:

Answer:

Explanation:

In contrast to the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. ... Similarly, a negatively charged object will exert a repulsive force upon a second negatively charged object. Objects with like charge repel each other.

In an endothermic reaction, energy is

A. absorbed.
B. released.
C. converted to mass.
D. synthesized.

Answers

Answer:

answer is A kxxhhxhxxhjxjxjxxj

Elements in a ___ on the Period Table of Elements have similar chemical characteristics and properties.

Answers

The answer is : Group

I Really need help With CHEMISTRY !! How do I do this?

1. Find the amount of heat (Q) needed to raise the temperature of 5.00 g of a substance from 20.0 to 30.0 degrees Celsius, if the specific heat of the substance is 2.01J/g℃



2. A metal with a specific heat of 0.780 J/g℃ requires 45.0 J of heat to raise the temperature by two degrees Celsius. What is the mass of the metal?

Answers

Answer:

1: 100.5 J

2: 28.8 g

I  found the answers online ;-;"

What is a substance that is dissolved in another substance?
O solvent
O compound
O solution
O solute​

Answers

Answer:

Solute

Explanation:

the substance that dissolves in a solvent to produce a homogeneous mixture.

>>>>>>>>>>>>>>>>>>>>>>>
LETS JUST END THIS ARGUMENT NOW!!!!
WHO BELIEVES THAT CEREAL ALWAYS GOES FIRST IN THE BOWL!!!!!!!!!!!??????????
You are crazy if you add the milk first!!!
YOU MONSTERSSS
Yuh im jus bord

Answers

Answer:

cereal then milk

Explanation:

Answer:

Milk first as always and always will be

Explanation:

Get flexed on ;)

In what way is Model A better than Model B? Model A shows the types of elements in the compound, but Model B does not. Model A shows the total number of atoms in the molecule, but Model B does not. Model A shows the three-dimensional shape of the molecule, but Model B does not. Model A shows the number of atoms of each element in the molecule, but Model B does no

Answers

Answer:the answer is c babes

Explanation:

I hope I could help y’all

Have a nice day

Or whatever day u want LMA0 it’s not up to me. Ight peace loves

Model A is better than Model B as Model A shows the three-dimensional shape of the molecule, but Model B does not. The correct option is c.

What are molecules?

The smallest particle of a substance possesses all of its physical and chemical properties. One or more atoms make up a molecule.

Knowing the molecular weights of the molecules allows us to calculate their sizes. The molecular weight of a molecule is the sum of the atomic weights of the atoms in the molecule.

The relative atomic mass of particles determines their size. Particles with a higher relative atomic mass weigh more than particles with a lower relative atomic mass. Larger atoms have heavier iotas and a larger relative atomic mass.

Therefore, the correct option is c, Model A shows the three-dimensional shape of the molecule, but Model B does not.

To learn more about molecules, refer to the link:

https://brainly.com/question/28931982

#SPJ2


True or False: Sulfur by itself isn't too bad, it's when it reacts with other elements that it can become dangerous

Answers

Answer:sulfer by itself is not pleasant and it can be dangerous by itself but in large amounts.

Explanation:

Answer:

True.

Explanation:

Also did you know that it is combined with chlorine that it becomes salt? Cool right? Two deadly things combining to become a condiment

What is the subscript of 3MgC12

Answers

I’m not entirely sure buh i think Mg would be 3 and C would be 12

Bats have oversized ears, which help the bats use sound waves to detect the motion of their prey. Which example of the characteristics of life is most similar?

Answers

Answer:

option B = A rat hides in its hole when it sees an approaching predator.

Explanation:

In order for any organisms, whether plants or animals to be able to keep being alive they have to develop a/some functions or abilities which is going to aid in their battle battle for survival, this concept is known as the Adaptive features of organisms.

From the question above, it can be seen that the oversized ears in bats is an adaptive features for them to get their food: as it helps them to use sound waves to detect the motion of their prey.

Unlike the bats, the rats adaptive features is to have a good running legs. This will help them to avoid getting eating by predators.

Answer:just saying he is correct

Explanation:

What happens to alpha particles as they get closer to the gold nucleus?

Answers

Answer:

Initially the alpha particle has only kinetic energy EK. As it approaches the gold nucleus it suffers repulsion by the 79 protons within that nucleus. Its kinetic energy changes into electric potential energy EP.

TRUE or FALSE: The rock closest to the ridge is newer and younger than the older rock
further away from the ridge.

Answers

Answer:true

Explanation:

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

The first one. Always, no exceptions

Answer:

the awnser is a

Explanation:

obvious lab safetty

How many moles are there in 32.4 grams of Na

Answers

Divide that my the molar mass which is 23 so 1.4087 g

According to the mole concept, there are 1.4087 moles in 32.4 grams of sodium.

What is a mole?

Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.

It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.

It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole . In case of molecules, where molar mass  in grams present in one mole  of atoms is its atomic mass.

Number of moles in this case is obtained by dividing mass by molar mass that is, 32.4/23=1.4087 moles.

Thus, there are 1.4087 moles in 32.4 g of sodium.

Learn more about moles,here:

https://brainly.com/question/26416088

#SPJ2

PLEASE HELP ASAP I NEED THIS THANK YOU SOO MUCH

which of the two chemical equations follow the Law of Conservation of Mass
Equation A: Zn +2HCl —> ZnCl2+ 2H2
Equation B: Zn +2HCl —> ZnCl2 + H2

Answers

Equation A: Zn +2HCl —> ZnCl2+ 2H2

2. Why is soil considered limited?

Answers

Answer: he natural area of productive soils is limited – it is under increasing pressure of intensification and competing uses for cropping, forestry, pasture / rangeland and urbanization, and to satisfy demands of the growing population for food and energy production and raw materials extraction

What is the total number of electrons in an atom of an element with an atomic number of 18 and a mass number
of 402
a. 58
c. 22
b. 18
d. 40

Answers

Answer:

18

Explanation:

Which statement about cellular respiration in plants and animals is true?

Both plants and animals need water to start cellular respiration.

Both plants and animals release energy from glucose in cellular respiration.

Both plants and animals take in carbon dioxide to break down glucose in cellular respiration.

Both plants and animals need chlorophyll to make glucose before using it in cellular respiration.

Answers

Answer:

Both plants and animals release energy from glucose in cellular respiration.

Tenemos un cuerpo de 40 g cuya densidad es 1,24 g/mL y otro objeto de 70 g con una densidad de 0,96 g/mL. Si introducimos cada uno en un recipiente con agua, ¿en qué caso subirá más el nivel de líquido?

Answers

Answer:

El nivel de líquido subirá más al introducirse el objeto de 70 g.

Explanation:

El nivel de líquido subirá más con el objeto que tenga mayor volumen.

Por lo tanto vamos a calcular el volumen de ambos objetos, usando la definición de densidad:

Densidad = Masa / Volumen

Si despejamos Volumen:

Volumen = Masa / Densidad

Ahora usamos esa ecuación y calculamos los volúmenes:

Objeto 1 ⇒ 40 g ÷ 1,24 g/mL = 32,26 mL  Objeto 2 ⇒ 70 g ÷ 0,96 g/mL = 72,92 mL

Por lo tanto el nivel de líquido subirá más con el segundo objeto.

All of these are examples of compounds except

Answers

Answer:

Add a picture please! or give answer choices

Explanation:

Answer:

theres no examples

Explanation:

i can answer if you add examples

Mass = 40g
Volume = 20mL
∙What is the Density?

Answers

Answer:

2 g/cm3

...........

You are making lemonade and the calls for 6 cups Lemon juice (L), 3 Cups of sugar (S) and 5 cups of water (W) to make 12 Cups of Lemonade (LA): your formula is:

6 L + 3 S + 5 W = 12 LA
You are given 9 cups of lemon juice (L), 8 cups of sugar (S) and unlimited water (W).
How many cups of lemonade can you make?
1. 9
2. 12
3. 18
4. 32

Answers

Answer:

18 Cups

Submitted the assignment

Explanation:

If 0.42 mole of helium occupies 9.9 L, how
many moles must be added to inflate the
balloon to 17.0 L?

Answers

Answer :

0.301 moles

Further explanation

Avogadro's hypothesis:  

In the same T,P and V, the gas contains the same number of molecules  

So the ratio of gas volume will be equal to the ratio of gas moles  

 

Given

n₁=initial mol of Helium : 0.42

V₁=initial volume : 9.9 L

V₂=final volume : 17 L

Required

number of moles added

Analysis

Use formula :

[tex]\tt \dfrac{V_1}{n_1}=\dfrac{V_2}{n_2}[/tex]

Solution

[tex]\tt n_2=\dfrac{n_1\times V_2}{V_1}\\\\n_2=\dfrac{0.42\times 17}{9.9}\\\\n_2=0.721~moles[/tex]

moles added :

0.721 - 0.42 =0.301 moles

Paraphrase

0.301 moles must be added to inflate the  balloon to 17.0 L

describe 3 different landforms.​

Answers

Answer:

Mountains, hills, plateaus

Explanation:

What type of reaction will occur with the following reactants?

CaS + NaCl -->

A) double replacement
B) decomposition
C) synthesis
D) single replacement

Answers

Answer:

A) double replacement

Explanation:

Chemical equation:

NaCl +CaS    →    Na₂S + CaCl₂

Balanced chemical equation:

2NaCl +CaS    →    Na₂S + CaCl₂

The given reaction is double replacement reaction in which cation and anions of each reactant exchange with each other.

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AD +CB

Other options are incorrect because,

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

AB → A + B

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

THIRTY POINTS I NEED HELP HURRY What is the volume of the cone?

Answers

Answer:

V=πr2h 3

Explanation: I would give more but need more i information

Answer:there u go

Explanation:The volume V of a cone with radius r is one-third the area of the base B times the height h . Note : The formula for the volume of an oblique cone is the same as that of a right one. ... If the heights of a cone and a cylinder are equal, then the volume of the cylinder is three times as much as the volume of a cone

Other Questions
I didnt pay attention to class so now I am stuck in this history question help!!! Which operation should be done first in theexpression below?(2 + 2) * 3 - 1-4 please help meThe skeletal system, the muscular system, and the nervous system all work together. Explain one link between the skeletal system and the muscular system, between the skeletal system and the nervous system, and between the muscular system and the nervous system. sentences for the word: sustain Adopted around 451 B.C., Rome's first code of law was written on bronze tablets called the A. ForumB. Twelve TablesC. Rule of LawD. New Roman Law 8900945867-*+.23598.000562-45896.0265=986578587983+89744563212255685-.032658974633what is the quotients!! s+89.222550y+-x=-.3265 What is the average rate of change of h(x)=2^{x+1}h(x)=2 x+1 h, (, x, ), equals, 2, start superscript, x, plus, 1, end superscript over the interval [2,4][2,4]open bracket, 2, comma, 4, close bracket? What do you think separates you from other people? Like what makes you special, or what talents do you have that most people don't have? What was a strategic advantage theSouth had during the Civil War?a. a large populationb. the ability to blockade the northern portsc. the strength of military leaders Which of the following is an example of a nonsense mutation?aA substitution of glycine amino acid for a stop codonbAn insertion or deletion of nucleotides that is not a multiple of threeA substitution of a serine amino acid for a glycine amino aciddA codon mutated from CCG to CCA, both coding for glycine Please help! Will mark brainliest! Exactly how many planes contain points J, K, and N?O 0O 1 O 2 O 3 How many rights are guaranteed in the Ohio Bill of Rights? John has seven hamburgers, which he divides evenly among his three friends. Which point on the number line below represents the number of hamburgers that each friend receives One example of : Simile, alliteration, allusion, and end of rhyme In your own words, describe how collection fits into the water cycle. Use details to support your answer. Help! Ill mark you brainly! And give extra points! 1. The school office is now selling neon mechanical pencils. If the office pays $10.80 for a dozen pencils, how much should be charged to make a profit of 75 cents each? 2. Several cases of 16-ounce bottles of water were purchased for $252.00. If one case costs $7.00, how many cases were purchased?3. Okolona College ordered jerseys to sell at the homecoming game. The college paid $9.25 each for 225 jerseys. Each jersey was sold for $15.75. What was the percent of markup for each jersey? How much profit was made if all of the jerseys were sold? 4. A truck traveled 654 miles on a long distance run. If the truck averaged 55 mph, how many hours did it take to reach the truck's destination? (Round to the nearest hour) 5. Della Riley borrowed $2400 for 6 months to invest in a business venture. If she agreed to pay 8% interest annually, how much will she be repaying? 6. It takes Dan an average of 45 minutes each evening to do his chemistry homework. Dan calculates that he worked a total of 3 hours on chemistry last week. Assuming that Dan worked his average time per evening consistently, how many evenings did Dan work? 7. Jon's car averages 20 mpg in town and 28 mpg on the road. What is the percent of decrease between the two driving conditions? Why did Southern states secede? A. They believed they could be more economically prosperous without the North. B. They believed the Union no longer represented their interests. C. The Supreme Court decided they were legally able to do so. D. They wanted to re-align themselves with England. Read the excerpt below. Cite or summarize the excerpt in such a way that you would not be committing plagiarism. "Companies should again tell their staffs to work from home whenever possible. All New Yorkers need to recommit to wearing masks, social distancing and avoiding unnecessary exposure risks whenever possible. Taking these steps will help keep children in the citys classrooms, which should be a priority", New York Times, the editorial board, 2020.