BCL PART
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Fill in the coefficients with the correct numbers to create a balanced equation,
Al + _ Brg _M1Brz
0 1,21
2,3,2
4,6,4
34,3
Answers
Answer:
im not sure sorry
Explanation:
Related Questions
When a comet enters the solar system, it curves toward the sun. Which statement describes why the sun does not move when a comet is nearby?
Answers
Answer:
Explanation:
When a comet enters the solar system it curves towards the Sun due to the Sun's gravitational pull. Every celestial object in the universe has a gravitational pull whose force is dependent on the object's mass. The larger the object is the more gravitational pull it will have. The Sun is the largest object in our Solar system and therefore has the most gravitational pull. This is why the comet curves toward the Sun, but the opposite does not happen because the comet's gravitational pull is not strong enough to pull the Sun.
PLS HELPPPP OMG PLSPLSPLSPLSPLS
Answers
Answer:
D 44.8 L liters of hydrogen gas
The period of time needed for a radioisotope to lose one-half of its activity is known as that isotopes
Answers
Explanation:
The radioactive scattering technique is called radioactive degradation. For each radioactive isotope, the natural radioactive cycle is special and is determined by a period of time termed a half-life. One half-life was its time needed to experience radioactivity for half of both the radioactive nuclei.
Which group in the food chain uses the energy of the sun to create its own food A consumers B predators C producers D prey
Answers
Answer:
C producers
Explanation:
All food chains start with energy from the sun. This energy is captured by plants. Thus the living part of a food chain always starts with plant life and ends with an animal. Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water.
Electrotonic configuration of potassium 19K ion equal the Electrotonic configuration of
1) ⁸0
2) ¹¹Na
3) ¹⁸Ar
4) ¹⁷C1
Answers
Hope this helps!!!!!
Give the number of protons, electrons and neutrons in one atom of Carbon.
Answers
Answer:
6 protons, 6 neutrons, and 6 electrons.
Explanation:
Carbon has six protons
Carbon has six elections
Hope that helped :D
What temperature kelvin would .97mol of gas be to occupy 26L at 751.2mmHg?
Answers
Answer: 322.56 Kelvin
Explanation:
Use the Ideal Gas Law
[tex]PV=nRT[/tex]
R is the gas constant
T is the temperature in Kelvins
P is the pressure in atmospheres
V is the volume in liters
n is the number of moles of gas
First, the mm of mercury need to be converted to atmospheres using the conversion factor 1atm = 760 torr.
[tex]751.2mmHg (torr) =0.988atm[/tex]
Now plug everything in
[tex](0.988)(26)=(0.97)(0.0821)T\\T=322.56K[/tex]
What is the ratio of the effusion rate of the helium to methane? (round to hundreds)
Answers
Answer:
2.00
Explanation:
From Graham's law; the rate of effusion is inversely proportional to the square root of the relative molecular mass.
Let the rate of effusion of Helium be R1
Let the rate of effusion of Methane be R2
Let the molecular mass of Helium be M1
Let the molecular mass of Methane be M2
Hence;
R1/R2 = √M2/M1
R1/R2 = √16.0294/4.0026
R1/R2 = 2.00
fill in the blank
______ is a way to describe matter with numbers and units.
Answers
Measurement is a way to describe matter with numbers and units.
Measurement is a fundamental process used to describe and quantify various aspects of matter. It involves assigning numerical values to physical quantities and expressing them using appropriate units of measurement.
In scientific and everyday contexts, measurements provide a standardized and consistent way to communicate information about the properties, dimensions, quantities, and characteristics of objects, substances, or phenomena. By using measurements, we can describe the size, length, mass, volume, temperature, time, and many other attributes of matter.
The process of measurement typically involves two components: a numerical value and a unit. The numerical value represents the magnitude or quantity being measured, while the unit provides the reference or scale by which that quantity is expressed. Units help provide meaning, context, and comparability to measurements.
Hence, measurement provides a quantitative and objective way to describe matter, allowing us to understand and interact with the physical world in a systematic and meaningful manner.
Learn more about matter here:
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#SPJ 4
In 2011, fires in Bastrop County, Texas were the most damaging wildfires in Texas history. The fire spread through the pine trees and scorched nearly 5,700 acres of Bastrop State Park. The majority of the Houston toad’s habitat was lost, and the Lost Pines Forest was greatly affected. As ecological succession began, which of these most likely appeared in the Bastrop forest area first?
A.Shrubs and trees
B. Newly developed topsoil
C.Weeds and grasses
D.Lichens on fallen trees
Answers
Explanation : because it grew over time
The most likely appeared in the Bastrop forest area first is to be considered as the C.Weeds and grasses.
What is ecology?It is the study that represents the relationships between a living organism that involved the human, and the physical environment.
It is at the individual, population, community, ecosystem, etc.
Hence, the option c is correct.
Learn more about an area here: https://brainly.com/question/14403188
please answer fast! Which of the following statements are false?
A: In a chemical change, atoms are rearranged to make new compounds.
B: The same element is present before and after a chemical change.
C: A physical change does not produce an entirely new substance.
D: A chemical property can be observed without changing the identity of the substance.
Answers
I believe it is C.
Hope this helps!
Plants respond to different kinds of stimuli. A plant's roots searching for water are an
example of what kind of response?
A. thigmotropism
B. phototropism
C. hydrotropism
D. gravitropism
Answers
Answer:
Explanation:
Hydrotropism
how many moles are in 5g of Na2CO3?
a) 0.047
b) 1
c) 2
d)21.2
Answers
Answer:
0.047
Explanation:
Data : 5g , Na2CO3
Formula:
Molecular mass of Na2Co3 = no.of atomic mass x no. of atom
moles = mass÷ molecular mass
molecular mass = 2(23)+1(12)+3(16)
=106amu
moles = 5÷106
= 0.047 Ans:
What kind of mutations would X, Y, and Z represent?
Answers
Y- Substitution
Z-Insertion
The amount of space is ___ and a common unit is ___.
A. mass, gram
B. volume, gram
C. mass, mL
D. volume, mL
Answers
Answer:
c
Explanation:
please I'm not really sure.
Answers
Answer:
a pea!
Explanation:
Answer:
A pea
Explanation:
We already know a electron is smaller than a proton.
1. Which of the following
equalities is false?
A. 1 kilogram = 100 meters
B. 50 milliliters = 5 centiliters
C. 3 grams = 0.003 milligrams
D. 70 hectometers = 7,000 decimeters
Answers
one is C.
What is specific heat?
Answers
Specific heat is the amount, like the other brainly answer said, of heat per unit mass required.
Calculate the pH if the pOH = 7.4
Round your answer to two decimal places.
Answers
i need points
Explanation:
Therefore 14 - pOH will give you the answer.
14 - 7.4 = 6.6
The pH is 6.6
if a piece of aluminum has a density of 2.7g/cm^3. the mass of 5.2g,what is the volume
Answers
Answer:
Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.
Explanation:
Answer:2.7 g cm-3.
Explanation:Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.
What are two things in nature that solar energy powers?
Answers
Answer: light and heat
Explanation:Our sun is the source of all life on Earth, and solar energy is useful to us in many different ways. The sun creates two main types of energy - light and heat - that we can harness for many activities ranging from photosynthesis in plants to creating electricity with photovoltaic (PV) cells to heating water and food.
How can you increase reaction rate in the forward direction? Chose all that
apply
Answers
Answer:
Sorry my task time about to run out : (
Explanation:
!! brainliest answer !! please help it's due tonight :)
Answers
Answer:
3. D
28. also known as Freon 12
Explanation:
How many moles of nitrogen are in 1 mole of Al(NO3)3?
O A. 4 moles of nitrogen
O B. 1 mole of nitrogen
C. 3 moles of nitrogen
O D. 7 moles of nitrogen
Answers
Answer:
c i think
Explanation:
how does the law of conservation of mass applies to all chemical reactions?
Answers
Answer:
the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. If we account for all reactants and products in a chemical reaction, the total mass will be the same at any point in time in any closed system.
Explanation:
The law of conservation is Matter cannot be created or destroyed in chemical reactions so it means exactly that
I NEED HELP WIT QUESTION THREE
Answers
Answer: 2.00
Explanation:
2 rounded to the nearest hundredth is 2.00
your welcome :)
answers for all three:
1. 4.00
2. 16.04
3. 2.00
What is the freezing point of solution that has 185.25 grams of Ca(OH)2 (formula mass = 74.1) dissolved in 2,500 grams of water at standard pressure?
Answers
Answer:
The freezing point depression ∆T = KF·m where KF is the molal freezing point depression constant and m is the molality of the solute. Rearrangement gives: mol solute = (m) x (kg solvent) where kg of solvent is the mass of the solvent (lauric acid) in the mixture. This gives the moles of the solute.
Explanation:
Does this help at all??
How does density affect the organization of earth?
A : The densest material is closest to the center
B : The density material is farthest from the center.
C : The densest material is near the center
D : Density differences allow Earth materials to mix freely. ( science by the way )
Answers
Answer:
Earth has layers because of density. Dense materials such as iron sank to the middle of the Earth, the center of its gravity. Less dense materials stayed at the top.
Explanation:
hope this help:)
The answer to the question, How does density affect the organization of earth is A : The densest material is closest to the center
The earth is made up of different layers namely,
The crustThe upper mantleThe lower mantleThe outer core andThe inner core.Each layer goes from topmost to inner most and the density of each layer increases as we moves closer to the center of the earth.
So, the densest material is closest to the center.
So, the answer to the question, How does density affect the organization of earth is A : The densest material is closest to the center
Learn more about density of the earth here:
https://brainly.com/question/14505036
What do normal people call it?
Answers
Explanation:
crystal rocks blue ig
.
.
3) What are the three types of sedimentary rocks?
Answers
Answer:
clastic, organic, and chemical