Chemistry High School
Answers
Answer 1
Answer:
You work hard for it. If you want your dream life really bad then you will work really hard for it.
Explanation:
Related Questions
Argon gas is heated from 28 °C to 350K. After being heated the volume was 1.2 L. What was the original volume?
Answers
Explanation:
thinking it Charles
V1=1.03or 1L
give an example of how carbon can cycle through an environment
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carbon can travel from plants to animals and into soil. When plants and animals die then they decay into the soil and leaves carbon in the ground
A magnet can pull the iron filings out of a mixture of sand and iron
filings.
TRUE
FALSE
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Answer:
this is true
Explanation:
because the sand is left behind for it isn't magnetic
True :)
Plus I’ve seen a vid on it
How can we be more careful with how we use natural resources?
Answers
By knowing what site were on and who were associating with
Due tonight! Please help!
Please show your work and don’t spam or delete answers
I will mark Brainliest!
Calculate the concentration in grams per liter of a 450.0 mL solution containing
0.0762 moles of iodine gas (I2)
Answers
Answer:
42.98 g/L
Explanation:
What is the number of moles of a gas inside a 2.7L airbag at a temperature of 421K and pressure of 6.2atm?
Answers
Answer:
.48 moles
Explanation
n=PV/RT
Which direction could the submarine move to go from an area of the lower pressure to an area of higher pressure
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Answer:
C. from the deep ocean to a trench
Answer:
C
Explanation:
ape x
3. Sexual reproduction is the process of creating a new organism by combining the
genetic information and material from parent organisms. Which of the following is
responsible for storing the genetic instructions needed to specify traits?
PLEASE HELPP
Answers
Answer:
chromosomes is responsible
The reproduction is defined as a process which involves the production of offspring. The genetic instructions are stored in chromosome. The correct option is C.
What is chromosome?
A chromosome is defined as the DNA molecule which consists of all the genetic material of an organism. It is found to be present in the nucleus of each cell. The DNA inside the chromosome is tightly coiled around special proteins called histones.
All living organisms are composed of chromosomes. Humans have 23 pairs of chromosomes. 22 pairs of these chromosomes are called autosomes. These are same in both males and females. The 23rd pair of chromosomes are called allosomes and they differ between sexes.
The males have one 'X' and 'Y' chromosome, while females have two copies of the 'X' chromosome. The important function of genetic material is to store information needed by the cell to make proteins.
Thus the correct option is C.
To know more about chromosomes, visit;
https://brainly.com/question/12537598
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how to light a candle without touching it?
Answers
just don’t touch it-
it’s not that hard
Answer:
use a lighter
Explanation:
A company that is concerned about the environment wants to encourage the use of their fuel cell cars, so they are putting
together information to help sell the cars. They want to be sure their material is accurate. Which piece of information is
true about fuel cell cars?
O Fuel cell cars are cheaper to buy. Fuel cell cars reduce use of non-renewable fossil fuels
Fuel cell cars are more powerful than gasoline-powered vehicles.
Fuel cell cars allow for the safe storage of hydrogen gas at filling stations.
Answers
Fossil cell cars reduce use of non renewable fossil fuels.
Answer:
B. Fuel cell cars reduce use of non-renewable fossil fuels
Explanation:
NH₃ + _O₂ → _N₂ + _H₂O
Answers
Answer:
4NH3 + 3O2 → 2N2 + 6H2O
Explanation:
Suppose a particle has 4 protons, 5 neutrons, and 2 electrons. What is its
charge?
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Answer:
It's going to be a postive charge because although theres a lot more neutrons then the rest of them, neutrons are neutral, which won't have much of an effect to the charge of the atom. 4 protons has a larger proportion to the rest.
Oxygen Gas (O₂)
A. 2 atoms of oxygen
B. 2 atoms of hydrogen
C. 3 atoms of oxygen
D. 1 atom of oxygen
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I think the correct answer is a
chemical formula for butane
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Answer:
the chemical formula for butane is C4H10
Distillation is the process of seperating liquids by using ____.
A: a catalyst
B: a centrifuge
C: precipitation and transpiration
D: evaporation and condesation
Please answer this quickily (who ever answers this correctly and answers it first gets brainliest)
Answers
I’m pretty sure it’s d
Answer:
a
Explanation:
i think
2H₂ +0 a 2H₂O
Mole ratio of water to oxygen
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Answer: 2:1
The ratio of hydrogen atoms to oxygen atoms used to make water molecules is always 2:1, no matter how many water molecules are being made.
Explanation:
Answer: GoodMorning: )✨2:1
The ratio of hydrogen atoms to oxygen atoms used to make water molecules is always 2:1, no matter how many water molecules are being made.
Have AN Amazing Day <3
What is the molality of a solution containing 30.0 g of napthalalene (C10H8) dissolved in 500.0 g of toulene? Please provide work. Thanks in advance!
Answers
Answer:
0.468 m
Explanation:
From the question given above, the following data were obtained:
Mass of napthalalene (C₁₀H₈) = 30 g
Mass of toulene = 500 g
Molality =?
Next, we shall determine the number of mole in 30 g of C₁₀H₈. This can be obtained as follow:
Mass of C₁₀H₈ = 30 g
Molar mass of C₁₀H₈ = (12×10) + (8×1)
= 120 + 8
= 128 g/mol
Mole of C₁₀H₈ =?
Mole = mass / molar mass
Mole of C₁₀H₈ = 30 / 128
Mole of C₁₀H₈ = 0.234 mole
Next, we shall convert 500.0 g of toulene to Kg. This can be obtained as follow:
1000 g = 1 Kg
Therefore,
500 g = 500 g × 1 Kg / 1000 g
500 g = 0.5 Kg
Finally, we shall determine the molality of the solution. This can be obtained as follow:
Mole of solute (C₁₀H₈) = 0.234 mole
Mass of solvent (toulene) = 0.5 Kg
Molality =?
Molality = mole of solute / Kg of solvent
Molality = 0.234 / 0.5
Molality = 0.468 m
Explain how water is able to control fire.
Answer ASAP
Plzz
Answers
Answer: Fire requires oxygen to burn. Water "smothers" fire and prevents it from acquiring more oxygen. Fire also requires heat, which cool water may prevent/remove.
Answer:
See what happens is the water bender uses the water to control the fire by... jp lol
Explanation:
Real answer is the water puts out the fire because it is a non-combustible aqueous solution, therefore it's able to be used to control a fire.
Question 39 (1 point)
What chemical family is helium in?
Answers
Answer:
noble gas
Explanation:
Answer:
Noble gas, Nometal
Explanation:
hope that had help u
URGENT CHEM HONORS PROJECT ILL GIVE BRAINLIEST i just need an idea for what to do. somehow make a chem honors project 10+ hours long. I'm thinking maybe a food focus, so how chem works with food. Maybe, how starch works ?? or also maybe a community/natur based project analyzing chemistry within the community/nature. Ill give brainliest for a legit answer
Answers
Answer:
A possible option could be the chemicals in certain types of food such as onions and how the chemicals in them is attracted to the nearest water source?
Identify each charge of the subatomic particles ?
Help me please ASAP
Answers
Answer:
Particle: Charge:
Proton +1
Neutron 0
Electron -1
PLEASE HELP WILL GIVE BRAINLIEST
why does the tenpature change?
what are examples of natural production (not humans)?
what is the atomosephere?
PLEASE WRITE ONE PARAGRAPH FOR EACH QUESTIOIN
Answers
Answer:
why does the temperature change?
Daily air temperatures at Earth's surface are controlled by the incoming and outgoing energy. During the day, the air temperature increases as energy gains exceed the energy lost from Earth's surface. Throughout the night, the air temperature decreases as Earth's surface loses more energy than it receives.
What are examples of natural products?
Classes. The broadest definition of natural product is anything that is produced by life, and includes the likes of biotic materials (e.g. wood, silk), bio-based materials (e.g. bioplastics, cornstarch), bodily fluids (e.g. milk, plant exudates), and other natural materials (e.g. soil, coal).
What is the atmosphere?
The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth's gravitational attraction.
Explanation:
I hope this helps!!
You are creating a carbon cycle poster in which direction would you draw arrows to show the movement of carbon through the process of respiration?
A. from the rock to the air
B. from the rock to the grass
C. from the air to the wolf
D. from the wolf to the air
Answers
D. From the wolf to the air
No one citizen would be able to possess more than 500 iugera of public land (ager publicus) that was acquired during wars. Any excess land would be confiscated to the state and redistributed to the poor and homeless in small plots of about 30 iugera per family.
Answers
Answer:
The answer is "Tiberius Gracchus agrarian reform"
Explanation:
The Lex Sempronia Agraria law suggested by Tiberius Gracchus. This law might rearrange the power of the comer speed of the fluid or even the state, indicating land annexed in original state battles. They attempt to legislate besides agricultural restructuring as well as his early death by both the Senator, and immediately continues to move for a rural transformation plan, in specific by citing Sextian-Licinian law, 240 years old, restrict the amount of land a single person would still own.
someone who is good at chemistry please help me
Write a word equation and a formula equation for each chemical reactions
A) Solid calcium reacts with chlorine gas to produce solid calcium chloride.
B) Nitrogen gas reacts with solid Iodine to produce nitrogen triiodide gas.
Answers
Equation#1 - Ca(s)+Cl2(g) ——> CaCl2(s)
Word equation #1- Calcium and Chlorine react to form Calcium Chloride.
Equation #2- N + I3 —-> I3N
Word Equation #2- Nitrogen and Iodine react to form nitrogen triiodine.
What is the atomic mass of an element that has 6 protons, 7 neutrons, and 6 electrons?
6
7
13
19
Answers
Answer:
13
Explanation:
proton plus neutron equal to atomic mass
explain why numerical prefixes are not needed on the names of ionic compounds ?
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Answer:
two ions can combine in only one combination.The number of ions is not fixed in a compound.
Explain in your own words how molar mass and molarity are the same and how they are different?
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Answer:
The two masses have the same numerical value, but the units are different
Explanation:
The two masses have the same numerical value, but the units are different: The molecular mass is the mass of 1 molecule while the molar mass is the mass of 6.022 \(×\) 1023 molecules.
If 1.0 mole of C8H18 are available to completely react
with enough O2, how many moles of H20 can be produced?
Answers
Answer: 1 mol C8H18 produces 9 mol H2O
Explanation: reaction : C8H18 + 12.5 O2 ⇒ 8 CO2 + 9 H2O
HELP HELP PLEASE PERCENT YIELD VERY IMPORTANT
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Answers
Answer:
I cannot read your screen.
Explanation: