Answer: d
Explanation: I want paying attention ngl hahahaha
GIVING BRAINIEST FIVE STARS AND HEART!
Please define the following term in your own words!
law of conservation of matter
Answer:
Matter cannot be created destroyed
Explanation
Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.
A sample taken from a layer of mica in a canyon has 2.10 grams of potassium-40. A test reveals it to be 2.6 billion years old. How much
potassium-40 was in the sample originally if the half-life of potassium-40 is 1.3 billion years?
A. 4.20
B. 8.40 g
c. 12.6 g
D. 16.8 g
E. 25.2 g
Answer:
The correct answer is b
Explanation:
Answer:
Correct Answer is (B)
Explanation:
Got it right on plato Chemistry Post test
Hope I helped you out :)
Many of the lunar craters are due to volcanic eruptions true or false
Answer:
false
Explanation:
Craters on the Moon are caused by asteroids and meteorites colliding with the lunar surface. The Moon's surface is covered with thousands of craters. ... It also has very little geologic activity (like volcanoes) or weathering (from wind or rain) so craters remain intact from billions of years.
HELP PLEASE!! I WILL GIVE YOU 22 POINTS!! (would mark brainliest but it’s not showing up on mine)
1) explain how the type of bonding between metals accounts for the malleability and ductility?
2)write the formula of the compound found between ammonium and sulfate.
3) what is the name of the compound that forms when silver transfers one electron to nitrogen
4) write the formula for the compound produced when magnesium and nitrate combine
5) write the formula for the compound produced when iron transfers two electrons to phosphorus
Answer:i am not studying chemistry but best of luck to you
Explanation:
What are weather balloons?
Answer:
A weather balloon also known as sounding balloon is a balloon that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde
Explanation:
Answer:
A weather balloon also known as sounding balloon is a balloon that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde.
Explanation:
I hope this helps :)
HELP!!! WILL MARK BRAINLIEST!!!
Which of the following metals is paramagnetic?
Question 5 options:
A)
Calcium
B)
Magnesium
C)
Sodium
D)
Beryllium
Answer:
A , B, C
Explanation: D is a Diamagnetic
The metals that are paramagnetic are Calcium, Magnesium, and Sodium. The correct options are A, B, and C.
What is paramagnetism?A weak magnetic field supplied externally can weakly attract some materials, which then create internal magnetic fields that are directed in the same direction as the applied magnetic field. This phenomenon is known as paramagnetism.
Despite not having an unpaired electron, the metal magnesium exhibits paramagnetic behavior. Sodium is also paramagnetic.
Atoms that have their electrons coupled are said to be diamagnetic, whereas those that don't are said to be paramagnetic. However, despite having no free electrons, calcium is said to be paramagnetic.
Thus, the correct options are A, Calcium, B, Magnesium, and C. Sodium.
To learn more about paramagnetism, refer to the link:
https://brainly.com/question/28216590
#SPJ2
please answer please ASAP BRAINLEST TOWhich term names the longest geologic time frame?
feel free get answers online if you need too
epoch
eon
era
period
Answer:
I belive its eon im not sure tho
eon is the answer can i please get the brainliest
Se sabe que un compuesto contiene 33.002% de carbono,9.063% de hidrogeno y el resto de oxigeno. El espectrometro de masas indica que la masa molecular aproximada es de 191g/mol(cual es la formula empirica y molecular probable
Answer:
CH3O
C6H18O6
Explanation:
Porcentaje de masa de oxígeno = 100% - (33,002% + 9,063%) = 57,935%
Divida el porcentaje en masa de cada elemento por su masa atómica relativa;
H- 9.063 / 1, C- 33.002 / 12, O - 57.935 / 16
H- 9.063, C- 2.75, O- 3.62
Dividir por la proporción más baja;
H-9.063 / 2.75, C- 2.75 / 2.75, O- 3.62 / 2.75
H- 3, C-1, O- 1
Fórmula emperical = CH3O
Dado que la masa molecular es 191 g / mol
Sea n el número de cada átomo de la molécula
Por tanto, su fórmula molecular es; (CH3O) n = 191
[12 + 3 (1) + 16] n = 191
31n = 191
n = 191/31
n = 6
Por lo tanto, la fórmula molecular del compuesto es; (CH3O) 6 que es C6H18O6
humans are more like animals such as rabbits than plants because ?
Answer:
because we aren't made of gas and it seems we have a common ancestor to all animals some more than others
Explanation:
alpha kenny buddy
alpha kenny buddy
alpha kenny buddy
alpha kenny buddy
Question 1
1 pts
What part of our planet protects the planet and traps gases inside of our planet?
O hydrosphere
O Earth surface
O atmosphere
core
What is the random mixing of gas molecules called?
O A. Volume
O B. Temperature
C. Diffusion
O D. Pressure
Answer:
C. Diffusion
Explanation:
just did
Elements in the same column of the periodic table of the elements all
Answer:
Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.
Explanation:
Answer:
the elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.
~+lil more info +~
The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.
Gizmo Student Exploration: Periodic Trends
Does anyone have the answer key?
Answer:
No
Explanation:
I dont at least but you may be lucky
Hydrofluoric acid is what type of acid?
Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon).
what should we use in soap making process:-
a) potassium hydroxide
b) sodium hydroxide (lye)
Explain why it should be used
Sodium hydroxide, with the formula NaOH, is usually used in products as a pH adjuster. It's also used in soap-making to turn fats and oils into soap. You can find sodium hydroxide (also called caustic soda or lye) in its pure form in the cleaning aisle, since it's also really handy for clearing up clogged drains.
The energy that plants need for photosynthesis comes from
OA.
minerals,
OB. sunlight
OC.
oxygen
OD.
water.
Answer:
OB sunlight
Explanation:
it grows with it
Which of the following is NOT true about a C-14 atom?
it contains 6 electrons
its atomic number is 6
it contains 6 neutrons
it contains 6 protons
Answer:
option C. it contain 6 neutrons.
Explanation:
Solvent: Will give brainliest
Answer:
Solvent is 1.00 liter of water.
Answer:
It would be the water i think rlly srry if im wrong thats just what i got
Explanation:
because a solvent would be the one dissolving
Which of these statements accurately describes monomers?
Monomers are macromolecules.
Monomers contain double bonds.
Monomers are made of repeating units.
Monomers contain bonds between metals.
Answer:
Monomers contain bonds between metals
Answer:
B: Monomers contain double bonds
Explanation:
I got it right on Edge
What are the three types of protist and how are they similar and how are they different (this is science but there is no tab for it)
Answer:
They are eukaryotic, which means they have a nucleus. Most have mitochondria
The diagram below shows the energy conversions of the Krebs cycle, which is part of cellular respiration. The U-shaped
arrows that show changes for NAD, FAD, and ADP molecules represent energy conversions. From each glucose
molecule, two acetyl-CoA molecules are made for the Krebs cycle.
NADH
NAD+
FADH2
FAD
Acetyl-CoA
СС
COA
COA
Citric Acid
4-carbon
compound
CCCC
co&Co
ADP
ATP
CO2
NADH
NAD+
5-carbon
compound
CCCCC
NAD+
NADH
CO.
How many energy conversions occur when both acetyl-CoA molecules go through the Kerbs cycle
A 5
B 6
C 10
D 12
Answer:
b
Explanation:
. Which of the following statements about solutions is false?
a. All solutions are mixtures.
b. All solutions are homogeneous.
c. All solutions contain two or more compounds.
d. All solutions contain at least two substances.
Answer:
B
Explanation:
The statement false about solution has been that all solutions are mixtures. Thus, option A is correct.
The solution can be defined as the dissolution of two or more substances. Thus, all solutions are been considered as dissolution of the solute and solvent molecules.
The solution has generally been the homogenous mixture as there has been the complete dissolution of the substances. However, the mixture can be defined as the combination and not the complete dissolution of the substances.
Thus, all solutions have not been considered as mixtures. Thus, option A is correct.
For more information about the solutions, refer to the link:
https://brainly.com/question/7932885
Which would balance the equation? (Look at picture on my laptop)
-3
-4
-1
-2
The answer is 2
2H2 + O2 ---> 2H2O
What kind of change forms a new substance?
A. A solubility change
B. A chemical change
C. A phase change
D. A physical change
Answer:
B
Explanation:
how many double bonds are in the lewis structure for carbon dioxide, CO2 ?
Answer:
the answer is two double bonds
I don't know what to do about this now. I like her a lot; I don't want to just give up on this because I see relationship potential with this girl. And I feel she genuinely does enjoy the time she spends with me too.
Answer:
Awe ...
Explanation:
How many liters of water are needed to dissolve 75.0 grams of NaOH to prepare a 1.00-M solution?
Answer:
About 500
Explanation:
Bc i used my calc
NEED HELP ASAP!
What makes Carbon-14 so useful in “carbon dating” or “radiodating”?
Answer:
Because carbon-14 decays at this constant rate, an estimate of the date at which an organism died can be made by measuring the amount of its residual radiocarbon. ... The carbon-14 method was developed by the American physicist Willard F. Libby about 1946.
Explanation:
NEED HELP FAST!!!! 20 POINTS!
Answer:
it would be C!!
Explanation:
what type of land use can result in nutrient depletion
