Answers
Answer:
the water displaced will not help the student find the correct volume because you can not accurately calculate it. you have to get the water when it is settled then you place the wood in.
Explanation:
Related Questions
Do liquids have kinetic energy? Yes or no.
Answers
Answer:
YESSIR
Explanation:
what type of bond is Cl and Br?
Answers
Answer: Polar bond
Explanation:
Using the balanced chemical equation:
4NH3 + 302 --> 2N2 + 6H20
Determine the amount of grams of N2 is produced If 4.03 moles of NH3 react?
Answers
Taking into account the reaction stoichiometry, 56.42 grams of N₂ are formed when 4 moles of NH₃ react.
Reaction stoichiometryIn first place, the balanced reaction is:
4 NH₃ + 3 O₂ → 2 N₂+ 6 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
NH₃: 4 molesO₂: 3 molesN₂: 2 molesH₂O: 6 molesThe molar mass of the compounds is:
NH₃: 17 g/moleO₂: 32 g/moleN₂: 28 g/moleH₂O: 18 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
NH₃: 4 moles ×17 g/mole= 68 gramsO₂: 3 moles ×32 g/mole= 96 gramsN₂: 2 moles ×28 g/mole= 56 gramsH₂O: 6 moles ×18 g/mole= 108 gramsMass of N₂ formedThe following rule of three can be applied: if by reaction stoichiometry 4 moles of NH₃ form 56 grams of N₂, 4.03 moles of NH₃ form how much mass of N₂?
[tex]mass of N_{2} =\frac{4.03 moles NH_{3} x56 grams of N_{2} }{4 moles NH_{3}}[/tex]
mass of N₂= 56.42 grams
Then, 56.42 grams of N₂ are formed when 4 moles of NH₃ react.
Learn more about the reaction stoichiometry:
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The amplitude of a wave is it's _________ or energy
Answers
You're invited to a hot tub party! Being the science geek that you are, you decide to calculate the amount of mL in the 650.0 gallon hot tub!
Answers
Answer:
cool but can we have a little bit bigger
Explanation:
What type of energy is used to form a chemical bond?
Solar energy
Free energy
Stored energy
Heat energy
Answers
Heat energy
I thing it's that? ok will hope you have a good day :)
Leon is creating a model using the items in the picture below. How could he best improve his model?
O
Earth
Moon
Sun
Make the earth larger than the sun
Make the moon larger than the sun
Make the sun smaller than the earth
Make the moon smaller than the earth
Answers
Make the moon smaller than the Earth.
True or false: when balancing equations you are allowed to change the subscripts of molecules only
Answers
Answer:
kabooom
Explanation:
Select the correct answer.
Which statement best describes how chemical equations demonstrate conservation of mass?
A.
The number of reactants is the same as the number of products.
B.
The compounds are the same on each side of the reaction.
C.
The number of atoms of each element is the same on each side of the equation.
D.
The state of matter is the same on each side of the equation.
Answers
Answer:
All of the Above
A.The number of reactants is the same as the number of products.
B.The compounds are the same on each side of the reaction.
C.The number of atoms of each element is the same on each side of the equation.
D.The state of matter is the same on each side of the equation.
Explanation:
Answer:
C
Explanation:
I did the test
Why are we able to see planets at night?
Answers
Answer: Because planets do not have nuclear fusion, they do not produce their own light. Instead, they shine with light reflected from a star. When we see planets in the night sky, such as Venus, the so-called "Evening Star," we're seeing reflected sunlight.
Explanation:
Answer this chemistry question below
Answers
What is the control center or “brain” of a cell called?
Answers
Answer: The nucleus is often referred to as the control center, or brain, of the cell and contains the DNA, or genetic material. The nucleus is surrounded by the nuclear envelope. ... Human cells are eukaryotic cells.
Explanation:
Answer:
Nucleus
Explanation:
not to good at explaining but I'm hoping this is right!
Suggest why we have discovered more elements today compared to our ancestors 50,000 years ago
Answers
Answer:
well, we have so much better and more tech and we are a lot smarter than we were before.
Explanation:
Answer:
We have way more advanced technology than our ancestors and we have a better idea of how the earth was millions of years ago.
Explanation:
eseasdasdsadasdadasda
r
Answers
nuclear energy is created through the process of splitting apart atoms and releasing large amounts of heat energy that can be converted to electrical energy.this process is known as?
Answers
how many molecules are in 4 moles of He?
Answers
Answer:
⇒ n = 2.4088 × 10²⁴
- So, the no of atoms in 4 moles of helium is 2.4088 × 10²⁴.
Explanation:
What animal did Darwin study in the Galapagos Islands?
1. Yellow fin tuna
2. Spiders
3. Hawks
4. Finches
Answers
Answer:
The answer is 4.
Explanation:
Finches.
Answer:
4. Finches
Darwin studied the forms of the beak, and found that they were different based on what they ate.
True or False? When a gas condenses to a liquid it absorbs heat from its
surroundings.
1.True
2.False
Answers
Answer:
True
Explanation:
because it never stops doing it
plsss help ASAP!!!
BRAINLIEST
Answers
Answer:
-175.15
Explanation:
1.0 °C = 274.15 K
2.0 °C = 275.15 K
3.0 °C = 276.15 K
4.0 °C = 277.15 K
5.0 °C = 278.15 K
6.0 °C = 279.15 K
7.0 °C = 280.15 K
8.0 °C = 281.15 K
9.0 °C = 282.15 K
Is NO ionic or covalent
Answers
A covalent bond is the bond where electrons are shared. This occurs between two non mental. N is nitrogen and O is oxygen, therefore NO would be a bond between two non metals. So it must be covalent.
You have 50 g of radioactive C-14. The half-life of C-14 is 5,730 years. How many grams would you have left after 5,730 years?
Answers
According to the Laws of Conservation Matter Atoms are not
Answers
they are not created or destroyed
If a plant cell is placed in a solution and the cell shrivels up, what type of solution was it placed in? How do you know?
Answers
Answer:
The cell is in a Hypotonic solution. When a cell is in a Hypotonic solution the lower osmotic pressure causing water to move across the pressure gradient into the solution causing the cell to shrivel.
A regional metamorphic belt is divided into zones based upon
Answers
The photograph shows one of the boats in a science club's toy boat race. All the boats were powered by identical
rubber bands. Judges used stopwatches to time how long each rubber band took to unwind. The table shows some
of the data the judges collected.
Which boat experienced the greatest unbalanced force?
Answers
Answer:Boat P
Explanation:
Multiple all of them mass times acceleration and which ever one was the greatest was the answer. Which was Boat P 0.2436
How does slash and burn affect the earth's atmosphere?
Question 2 options:
less plants to take in carbon dioxide
more cows produce more carbon dioxide
less water for carbon dioxide to dissolve in
2 of the above
all of the above
Answers
Answer:There are many problems that result from this method of growing crops, including deforestation, a direct consequence of cutting down forests for crop land; loss of habitat and species; an increase in air pollution and the release of carbon into the atmosphere—which contributes to global climate change; and an increase
Explanation:
is A bond a chemical attraction between two atoms?
Answers
Answer:
Yes, a chemical bond is a lasting attraction between two atoms. (I am not completely sure what you mean, but I hope this helps!)
Which layer of the atmosphere is directly above the troposphere?
exosphere
stratosphere
troposphere
mesosphere
Answers
Answer:
stratosphere is directly above troposphere I think
Match the orbital to its diagram.
Answers
Answer:
s --- the round single circle
p --- the two lobes
d --- the four lobes
f --- complex shape
Do the reactants or products contain more energy in the
decomposition reaction of sodium azide?
Answers
Answer:
reactants contain more energy in the decomposition reaction of sodium azide?
Explanation: