List and define the 3 parts of a chemical equation (R->P).

Answers

Answer 1

Answer:

R- reactants

arrow- yields

p- products

Explanation:


Related Questions

what kind of bonds involve a transfer of electrons? what kind of bond involves sharing of electrons?

Answers

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Answer:

While covalent bonding involves sharing electrons between two atoms, ionic bonding involves the complete transfer of electrons from one atom to another, creating positive and negative ions. These ions are then held together by the attraction between their opposite charges.

Explanation:

Hope this helped!

Relate pH values of 9.1, 1.2, and 5.7 to hydronium and hydroxyl ion concentration.

Answers

Answer:

9.1 = basic  1.2= very acidic  5.7= acidic

Explanation:

Which statement applies only to electric force insted of electric and magnetic forces

Answers

Answer:

If the options are

A. It can push objects apart

B. It can pull objects together

C. It acts between charged particles

D. It acts between objects that do not touch

I'm pretty sure it would be C.

Sry if wrong but have nice day! <3

someone help me please i’ll give brainly

Answers

Answer:

D) All of the above

Explanation:

When the temperature of an object increases, the average kinetic energy and speed of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object also increases as its temperature increases.

when is the energy source used to fuel photosynthesis

Answers

Answer:

Photosynthesis, process by which green plants and certain other organisms use the energy of light to convert carbon dioxide and water into the simple sugar glucose. In so doing, photosynthesis provides the basic energy source for virtually all organisms.

Explanation:

Sounds with small amount of energy______distances than sounds with more energy

A.Shorter
B. Longer
C.same
D. Medium

Answers

shorter I believe, but I would consult with your notes.

property of an acide ​

Answers

Answer:

hi

Explanation:

acids are corrosive, rective when combined with bases form salt and when combined with metal form h2o

Answer:

page no,165 ma xa. yo question KO ans

Two individual atoms of the same element are slightly different. One has one more proton than it has electrons. The other has one more electron than it has protons. These atoms are both

ions
isotopes
freons
xenons
phlogistons

Answers

Answer:

ions

Explanation:

Individual atoms of the same element but having slightly different number of protons and electrons are called ions.

Ion is a charged particle.

An atom is made up of three fundamental subatomic particles. Protons are the positively charged particles Electrons are the negatively charged particles Neutrons do not carry any charges.

When the number of protons > electrons the body is positively charged.

When the number of electrons > protons the body is negatively charged.

Charged particles are called ions.

Which of the following is true about waves?
A.
They are always visible.
B.
They always move matter.
C.
They carry energy.
D.
They can only travel though outer space.

Answers

Answer:

c. they carry energy is the answer

Answer:

C. they carry energy

Explanation:

Energy can be carried from one place to another by waves, including water, light, and sound waves. Waves are oscillating disturbances that travel through but do not move matter.

Infrared radiation escaping from hot coals is an example of invisible waves carrying energy. This energy can be felt as heat.

6. All changes in states of matter (freezing, evaporation, condensation, etc.) are
a. physical changes
b. chemical changes

Answers

Pretty sure its Physical Changes

No chemical reaction is happening.

Answer:

Changes of states are physical changes

Explanation:

They are reversible changes that do not involve changes in matter's chemical makeup or chemical properties.

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Right Now Please <_> I really need it to level up

How can air quality be fine on one day and hazardous on the next? What
are some things that can cause a rapid change in air quality? *

Answers

Answer:

Air Current

Explanation:

Say I am in California and there is a massive fire next to me but not close enough to me to really see the fire and the next day I see no fire but theres a ton of ash in the sky, this can be due to the wind current taking the smoke from the fire into my direction and that smoke falling in my area. So basically a wind current can take the smoke from a fire into another destination and cause a rapid change in air quality in a day.

Easy Chemistry/ Help

Answers

i’m not really sure what the qn is asking for but if i’m not wrong it should be ‘1’ for each blank!

HELP!!!
i will mark brainliest ​

Answers

Answer:

Blank #1: noble gas

Blank #2: bonding

Blank #3: octet rule

Blank #4: share

Blank #5: filled

Blank #6: halogen

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How many moles are there in a 122 gram sample of nickel (Ni)?
7.16 x 103 moles
6.22 mol
2.08 mol
0.481 mol

Answers

the molecular weight of nickel is 58.69 g/mol. thus in a 122 gram sample of nickel there are 122/58.69=2.08 moles of nickel.

The atomic mass of nickel is 58.71 gm and the given mass of nickel is 122 gm. Therefore, 2.08 moles are present in a 122-gram sample of nickel.

Nickel:

The atomic number of nickel is 28.The symbol of nickel is Ni.Density of a nickel 8.908 g/cm3.It is a d block element.It belongs to group 10 and period 4.It is also called transition metal.It is a metal and is located between groups 2 and 3.

Mass of nickel given: 122 grams.

Atomic mass of nickel: 58.71 g mol

Number of moles = Mass / molar mass

                             = 122/ 58.71

                              = 2.078

                              = 2.08 moles.

The atomic mass of nickel is 58.71 gm and the given mass of nickel is 122 gm. Therefore, 2.08 moles are present in a 122-gram sample of nickel.

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What is a non-example of a nucleus? Please give me a non-living thing.

Answers

Answer:

They are prokaryotes and both have tough cell walls. ◦ The cytoplasm contains ribosomes, but no organelles. ◦ There is no nucleus for organisms in this category.

Explanation:

Answer:

rock- non living

( Prokaryotes don't have a nucleus)

Explanation:

Can someone help? Ill give brainliest!

Directions: count each side of the reaction. Circle yes or no if it follows the law of conservation of mass

Answers

Answer:

Yes, it becomes 2 of H20 which is water

Plants make their own food and are not required to consume food for energy. Into which category does this characteristic cause plants to be assigned?​

Answers

Answer:

Autotrophic or Producers

Explanation:

They are often called producers because they make their own food.

This is due tomorrow so please help! : name a product where viscosity is important its creation or use explain why it is important

Answers

Like the other user stated, viscosity is an important property of fluid foods.it is defined and an internal friction of a liquid or it’s ability to resist flow

Also can someone help me with this one as well, thank you! :)

Answers

Answer:

a. The density of the aluminum will change if the sample gets too big.

Explanation:

Since increasing its size increases its volume hence it affects the value of its density by decreasing.

note: Density = mass/volume.

When was Quartz found and how is it extracted??

Answers

Answer:

Quartz was discovered in 1880 and they use buldozers and backhoes (to remove dust/dirt around it) and rarely explosives.

Explanation:

it!
t
Calculate How old was the tree when it was
cut down?

Answers

Answer:

No numbers how are we supposed to know

Explanation:

The chemical equation below shows the amount of the reactants used and the amount of only one of the products formed. How much water (H2O) should be formed in this chemical reaction? CH4 mass 4 + 2O2 mass 16 CO2 11 + 2h2O mass ?

Answers

Answer:

CH4 + 2O2 → CO2 + 2H2O

Explanation:

This is all i could come up with im sorry.

The amount of water formed in the given chemical reaction is 9 grams.

What is Stoichiometry?

Stoichiometry is the calculation for the determination of the relative amount of reactants and products in chemical reactions. Stoichiometry is based on the law of conservation of mass where the total mass of the reactants in reaction equals the total mass of the products.

If the quantity of one reactant is known and the quantity of the product can be determined empirically, then the quantity of the other reactants can be calculated.

Given chemical equation is:

CH₄  +   2O₂  [tex]\longrightarrow[/tex]   CO₂   +   2H₂O

16g        32g         44g           32g        (from their molecular masses)

The amount of methane, oxygen, and carbon dioxide is 4g, 16g, and 32 g respectively.

16g of methane react with oxygen = 32g

4g of  methane will react with oxygen = 8g

It means here methane is the limiting reagent as the given amount of oxygen is more than reacted one.  So CH₄ will decide the amount of water.

16g of methane produces water = 32g

Then 4g of methane will produce water = (32/16) × 4 = 9 g

Therefore, 9 grams of water should be formed in this reaction.

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Help plz:))) I’ll mark u brainliest
ASAP!!!

Answers

Answer:

rank from lower to higher electronegativity

16)Li

   C

   N

17)Ne

  C

   O

18)Si

   P

   O

19)K

   Mg

   P

20)He

    S

    F

Heyyyyyyyy I’m smart I think I’m sorry

3.) All matter has both physical and chemical properties. A physical property is one that does not change the chemical nature of matter. Which of these choices is a physical property?
A.) height
B.) flammability
C.) ability to rust
D.) reaction with water

Answers

Answer:

D

Explanation:

It would be D because you are observing the reaction and don’t change anything

How many atoms of nitrogen are in the chemical formula Ni(NO3)2?

Answers

Answer:

2

Explanation:

bc the 2 that's after a bracket refers to both oxygen and nitrogen, making oxygen 6 bc it already has a 3(3×2=6)

Answer:

2

Explanation:

How is the pH of an acidic substance raised?

1) Dilute it.
2) freeze it.
3) Stir it.
4) Concentrate it.

Answers

Answer: 4) Concentrate it

Explanation:

If a substance has a PH of 7 is it a acid, base or a neutral.

Answers

Answer:

Neutral

Explanation:

A pH below 7 is acidic and a pH above 7 is basic, and a pH of 7 is neutral.

Answer:neutral
Explanation: A substance that is neither acidic nor basic is neutral. The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral

How do I graph these question
a. Explain why bicycle tires seem higher in the summer than in winter.

b. Explain why a can of soda pop explodes if left in the hot sun.

c. A rigid container filled with a gas is placed in ice (ex. nalgene bottle). What will happen to the pressure of the gas? What do you think will happen to the volume?

d. An infected tooth forms an abscess* that fills with gas. The abscess puts pressure on the nerve of the tooth, causing a toothache. While waiting to see a dentist, the person with the toothache tried to relieve the pain by treating the infected area with moist heat. Will this treatment help? Why or why not?

Answers

Number 1: I think it’s because the air inside of them expands with heat, so you could graph the expansion rate for all of them really

Help please its science

Answers

Answer: any answer choices

Explanation:

How many liters of ammonia are formed with 49.8 g of nitrogen gas reacting with 10.7 g of hydrogen gas at S.T.P.?

Answers

the reaction is as follows:

N2+3H2---->2NH3

the number of moles of N2 is 49.8g/14gmol^-1=3.56mol

the number of moles of H2 is 10.7g/2gmol^-1=5.35mol

here, since the ratio of N2/H2 is 1/3, we can see that H2 is the limiting reagent. therefore, the reaction proceeds as follows:

N2 + 3H2 ---------------> 2NH3
5.36mol (2/3)(5.36mol)=3.57mol

therefore, the number of moles of ammonia formed is 3.57mol. at STP, P=1atm, T=273K.
Therefore, V(NH3)=(3.57)(22.38)=79.822 L
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