9. Which of these substances have a higher specific heat, and why?
A. copper; hydrogen bonding
B. copper, metallic bonding
C. water; hydrogen bonding
D. water; metallic bonding
Answer:
C
Explanation:
water has the highest specific heat capacity of any liquid,as a hydrogen bond
Kayla learned that when you play with the Soccket for 30 minutes it gives you 3 hours of light. She thinks that rolling the ball slowly with her baby brother for 30 minutes will give her the same amount of energy as kicking it in a game of soccer for 30 minutes. Do you agree or disagree? State your claim and use evidence from what you've learned about speed and energy to explain your answer.
Answer:
disagree it wont be the same momentum
Explanation:
cuh
Help me out please an thank you
What do waves carry from place to place?
A Energy, but not matter
B Energy and matter
C Matter, but not energy
D
Nelther energy nor matter
In context to the question after evaluating every possible fact we conclude that waves carry energy and never carry matter, towards a dignified place to another.
This is considered true concerning all types of waves involving the sound waves, water waves, light waves, radio waves, microwaves, and x-rays. Then the correct answer for the required question is Option A.
Furthermore, there are different and distinguished types of waves. For instance
Mechanical waves: These comprises of waves that require a medium to complete the given course. Instances involve sound waves and water waves.Electromagnetic waves: These consist of wave’s generally don’t require a medium to complete a course . Instances include radio waves, microwaves, and light waves.Matter waves: These involve waves that are associated with particles such as electrons and atoms.To learn more about mechanical waves
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_____ C8H8 + _____ O2 _____ CO2 + _____ H2O
What do you want for the answer the balance equation?
2 moles Fe= how many Fe atoms
How do you study things you cannot see
Answer:
For things that we can not directly observe, we can use indirect observation – which studies the consequences of an action or process. For example, we cannot see the Earth's magnetic field, but we detect it by its effect on a compass.
The Pi Song
Lyrics. And now
AsapSCIENCE presents-
100 digits of π
3.14159, this is π
Followed by 2-6-5-3-5-8-9
Circumference over diameter
7-9, then 3-2-3
OMG! Can't you see?
8-4-6-2-6-4-3
And now we're on a spree
38 and 32, now we're blue
Oh, who knew?
7, 950 and then a two
88 and 41, so much fun
Now a run
9-7-1-6-9-3-9-9
Then 3-7, 51
Half way done!
0-5-8, now don't be late
2-0-9, where's the wine?
7-4, it's on the floor
Then 9-4-4-5-9
2-3-0, we gotta go
7-8, we can't wait
1-6-4-0-6-2-8
We're almost near the end, keep going
62, we're getting through
0-8-9-9, on time
8-6-2-8-0-3-4
There's only a few more!
8-2, then 5-3
42, 11, 7-0 and 67
We're done! Was that fun?
Learning random digits
So that you can brag to your friends. (XP this is to weird as hell)
3.14159, this is π
Followed by 2-6-5-3-5-8-9
Circumference over diameter
7-9, then 3-2-3
OMG! Can't you see?
8-4-6-2-6-4-3
And now we're on a spree
38 and 32, now we're blue
Oh, who knew?
7, 950 and then a two
88 and 41, so much fun
Now a run
9-7-1-6-9-3-9-9
Then 3-7, 51
Half way done!
0-5-8, now don't be late
2-0-9, where's the wine?
7-4, it's on the floor
Then 9-4-4-5-9
2-3-0, we gotta go
7-8, we can't wait
1-6-4-0-6-2-8
We're almost near the end, keep going
62, we're getting through
0-8-9-9, on time
8-6-2-8-0-3-4
There's only a few more!
8-2, then 5-3
42, 11, 7-0 and 67
We're done! Was that fun?
If 5 moles of nitrogen are used how many moles NH3(g) are produced
Answer:
I hope this will help you....and please mark me as Brilliant
Explanation:
1 moles N2 you can produce 2 moles of NH3, (see equation)
5 mol N2 gives 10 mole NH3
molar mass of NH3 = 17.03 g/mole
10 moles NH3 is 10 * 17.03 gram = 170.3 gram NH3.
Balanced equation:
N2(g) + 3 H2(g) → 2 NH3(g)
During a chemical reaction, substances (called reactants) are combined to form new substances (called products). Which of the following accurately describes the reactants and the products of a chemical reaction? The products contain a different number of atoms than the reactants but have the same properties The number of atoms and the properties are the same in the reactants and the products The products contain the same number of atoms as the reactants but have different properties The number of atoms and properties are different int he reactants and the products
The number of atoms and properties are different int he reactants and the products.
?what are the uses of gamma, alpha and beta particles in medicine, military and industry?
do you think using gamma rays in medicine is harmful or helpful in medicine?
Answer:
See explanation
Explanation:
Gamma, alpha and beta particles are used in medicine for the treatment of various kinds of cancers and tumors. In addition gamma rays are used for sterilization in medicine as well as in medical diagnosis.
Alpha particles are used to eliminate static electricity in industry. Beta particles are used in industry as tracers and for monitoring the thickness of materials. Gamma rays are very useful in industry for non destructive testing of products.
In military, alpha and beta particles are used for remote sensing. Gamma rays are useful for nuclear warfare.
Although gamma rays are able to penetrate the human body and cause a lot of damage to tissue and DNA, they are equally able to kill malignant cells in the body. This has been harnessed in radiotherapy for cancer treatment. Gamma rays are indeed dangerous to the human body if they are not delivered carefully and purposefully.
In conclusion, gamma rays are both helpful and harmful when used in medicine. They are helpful when delivered carefully with a specific purpose in mind and harmful when they are not delivered carefully.
Taya observed a plant that is small and grows close to the ground because it does not have the water transport
structures required to grow taller.
Which plant phylum did this plant most likely belong to?
O conifers
Oferns
O mosses
O flowering plants
Answer:
O mosses
Explanation:
HAHAHAHAHAAHAHAHAHA help
Answer:
the sun
Explanation:
Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium sulfate Na2SO4 and liquid water H2O. Suppose 17. g of sulfuric acid is mixed with 7.07 g of sodium hydroxide. Calculate the maximum mass of sodium sulfate that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits.
Answer:
ok let me study into this first
Explanation:
I'll answer this in a few
Answer:
Maas of sodium sulphate produced = moles×molar mass=0.06×142=8.52 gmoles\times molar\ mass=0.06\times 142=8.52\ gmoles×molar mass=0.06×142=8.52 g
Explanation:
Reaction between them is given by-
2NaOH +H2SO4 → Na2SO4 +2H2O2NaOH\ \ +H_2SO_4\ \to\ Na_2SO_4\ \ +2H_2O2NaOH +H2SO4 → Na2SO4 +2H2O
Molar mass of H2SO4=98 g mole−1H_2SO_4=98\ g\ mole^{-1}H2SO4=98 g mole−1
Moles of sulphuric acid taken = 5.8898=0.06 mole\frac{5.88}{98}=0.06\ mole985.88=0.06 mole
Moles of sodium hydroxide taken = 6.240=0.155 mole\frac{6.2}{40}=0.155\ mole406.2=0.155 mole
here sulphuric acid is limiting agent so
reaction will proceed according to sulphuric acid
0.06 mole HSO4 will produce same amount of Na2SO40.06\ mole\ H_SO_4\ will \ produce\ same\ amount\ of \ \ Na_2SO_4\\0.06 mole HSO4 will produce same amount of Na2SO4
Which is the correct molar mass for the
compound aluminum carbonate, Al2(CO3)3?
Answer:
molar mass for the
compound aluminum carbonate, Al2(CO3)3
233.99 g/mol
What element is represented in this model if the atomic number is 3?
A.
lithium
B.
carbon
C.
nitrogen
D.
neon
Answer:
The answer is lithium
Answer:
A. Lithium
Explanation:
Find the mass, in grams, of 1.00 x 1023 molecules of CO2
Answer:
Cosimo
Explanation:
How are air temperature and humidity related? Colder air can hold more water vapor than warmer air. Warmer air and colder air can hold the same amount of water vapor. Warmer air can move faster than colder air. Warmer air can hold more water vapor than colder air.
Answer:
Warmer air can hold more water vapor than colder air.
Explanation:
Weather can be defined as the atmospheric conditions of a particular area over a short period of time.
The elements of weather include precipitation, wind, temperature, atmospheric pressure, relative humidity, cloud, and wind speed.
Temperature can be defined as a measure of the degree of coldness or hotness of a physical object (body).
On the other hand, humidity refers to the concentration (amount) of water vapor that is present in the air. It is high when there's a lot of water vapor in the air and low when the level of water vapor is small.
The relationship between air temperature and humidity is that warmer air can hold more water vapor than colder air because as the air cools, its molecules move closer together while the molecules move farther apart as the air become hot.
Additionally, at constant humidity, relative humidity is inversely proportional to temperature i.e as the temperature decreases, relative humidity increases.
Use the data to calculate the percentage remaining for samples Y and Z to the nearest tenth of a percent.
The percentage remaining for Sample Y is ___
percent.
The percentage remaining for Sample Z is ___
percent.
Answer:
Explanation:
y is 98
Answer:
Y is 98.0 percent
Z is 94.7 percent
Explanation:
I just took it. hope it helps
Devices that allow you to do work in an easier way.
Answer:
The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.
Answer:
The most important devices that made work easier are:
The wheel
The axle
The lever
The inclined plane
The pulley
The screw
The wedge
these are known as the the "six simple machines"
Which of the following substances is a base?
5 points
a. Vinegar
b. Ammonia
c. Lemon juice
d. Distilled water
Answer:
D
Explanation:
water is used to delude just about anything
in a chemical reaction, conservation of mass is demonstrated by proving that the mass of the reactants is___ the mass of the products.
Answer:
equal to
Explanation:
The law of conservation of mass tells us that during a chemical reaction, matter cannot be created or destroyed, but it can change from one form to another. This means that while atoms can rearrange themselves into new substances during a reaction, the mass of the reactants and products will be the same.
Ice cream
Air, Cone:
Heat is :
the system
The kinetic energy is
The potential energy is
:: Surroundings
:: System
.: Entering
:: Exiting
.: Increasing
:: Decreasing
Answer:
icecream-decreasing
air,cone-surounding
heat is -entering-the system
the potential energy-increasing
Can anyone help me on this please !
Answer:
16.....................
Consider the atomic model of the element chlorine. Which elements will bond ionically with chlorine such that the formula would
be written as XCL2?
-0
A)Hydrogen
B)Magnesium
C)Oxygen and Sulfur
D)Lithium and Sodium
E)Barium and Calcium
Answer:
it is magnesium and barium and calcium
Magnesium, Barium, and Calcium will bond ionically with chlorine such that the formula would be written as MgCl₂, BaCl₂, and CaCl₂.
What are ionic compounds?Ionic compounds can be explained as crystalline solids which are formed by packing of opposite charge ions due to the interactions of the ions. An Ionic compound is produced when metal reacts with non-metal.
In ionic compounds, oppositely charged ions are held by ionic bonds due to the interactions between ions. The ions are formed from atoms by gaining or losing electrons in order to attain their noble gas configuration.
A cation in ionic compounds is the electropositive ion and has the tendency to give away valence electrons. Similarly, anions in ionic compounds are electronegative ions and have a tendency to gain electrons.
The chlorine needs one electron to complete its valence shell. Therefore two chlorine will combine with a divalent cation. Therefore Magnesium, Barium, and Calcium exist as Mg⁺², Ba²⁺ , and Ca²⁺.
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a 70 g sample of cesium is sealed in a glass vial and lowered into 250 mL of water at 90 C. when the cesium melted the temperature of the water dropped to 88.98 C
Answer: 70.0 g = .53 mol
Q = 250g (+ 1.02) 4.18
Q = 1065. 9 J / 1000 = 1.0659 kJ
1.0659/ .53 = 2.01 kJ/ mol
Answer: 2.01 kJ/ mol
Explanation:
Heat can be transferred from the hotter water to metal causing the metal to melt.
What is heat transfer?The question is incomplete but I will try to give you a general overview. Now, we know that heat can be transferred from one body to another.
Hence, heat can be transferred from the hotter water to metal causing the metal to melt. When the metal melts, the system will now attain an equilibrium temperature.
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The part of the atom that is free to move between materials is???
Answer:
Electrons
Explanation:
its gelatin and a fruit cup the same (its for a project)
Answer:
No
Explanation:
Gelatin is a substance that makes jello, and a fruit cup is a cup full of fruit
Answer:
no
Explanation:
define the term albedo
Answer:
is a measure of how much light that hits a surface is reflected without being absorbed.
Explanation:
it is the measure of the diffuse reflection of solar radiation out of the total solar radiation and measured on a scale from 0, corresponding to a black body that absorbs all incident radiation, to 1, corresponding to a body that reflects all incident radiation
Answer:
The proportion of the incident light or radiation that is reflected by a surface, typically that of a planet or moon.
Which body systems help to exchange oxygen and carbon dioxide?
A. respiratory and digestive
B. circulatory and digestive
C. respiratory and circulatory
D. digestive and excretory