A
acceleration is change in speed
Answer:
A. Change in speed
Why do the more complex sugar disaccharides store more energy than
monosaccharides?
Answer:
Because Disaccharides have more chemical bonds.
Explanation:
Convert 17oC to kelvin
Answer:
290
Explanation:
Temperature in kelvin = 273 + Temperature in ⁰C
Answer: °Celsius Kelvin
25.00 298.15
25.01 298.16
25.02 298.17
25.03 298.18
25.04 298.19
25.05 298.20
25.06 298.21
25.07 298.22
25.08 298.23
25.09 298.24
explain what is the difference between bohr and rutherford atomic models
Answer:
The Rutherford Model shows an atom with electrons orbiting a fixed, positively charged nucleus in set, predictable paths. The Bohr model shows electrons travel in defined circular orbits around the nucleus.
The diffusion of matter and energy in a liquid is slower than diffusion in a gas
True
O False
Which statement is true about solids?
Their particles can flow over one another, so they have a fixed volume but no fixed shape.
Their motionless particles are packed together in a fixed arrangement.
Their vibrating particles are packed together in relatively fixed positions.
Their fast-moving particles can expand to take the shape of their container.
Answer:
3
Explanation:
Answer:
Their vibrating particles are packed together in relatively fixed positions.
Explanation:
As you can see in the image below, solid is packed together.
I'M IN A TEST RN PLS HELP!
"A carbonated drink is an example of which type of solution?"
a) saturated
b) supersaturated
c) unsaturated
d) none of the above
In the reaction 2 FeBr3 + 3 Cl2 → 2 FeCl3 + 3 Br2, how many grams of bromine gas are produced from 2.50 moles of FeBr3?
Answer:
but iron is 2 and 3 by its valance how could it be possible
how many moles of NaOH are produced from 1.20 moles of Na2O?
According to the stoichiometry of the mentioned chemical reaction,2.40 moles of NaOH are produced from 1.20 moles of Na₂O.
What is stoichiometry?Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is used in balancing chemical equations for the law of conservation of mass to be implemented.
According to the reaction, as 1 mole of sodium oxide produces 2 moles of NaOH , therefore 1.20 moles of sodium oxide will produce 1.20×2/1=2.40 moles of sodium hydroxide.
Thus, 2.40 moles of NaOH are produced from 1.20 moles of Na₂O.
Learn more about stoichiometry,here:
https://brainly.com/question/9743981
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Which statement correctly describes the relationship between air temperature and air pressure?
-Warm air rises, creating an area of low pressure.
-Cool air sinks, creating an area of low pressure.
-Warm air sinks, creating an area of low pressure.
-Cool air rises, creating an area of low pressure.
Answer:
-Warm air sinks, creating an area of low pressure.
Explanation:
Heat will weigh more, than cool air!
How many moles of ammonia gas can be formed from 14.0 L of hydrogen gas 300 K and a pressure of 2.0 atm
Answer:
n = 1.14 mol
Explanation:
Hello there!
In this case, according to the ideal gas law:
[tex]PV=nRT[/tex]
It is possible to solve for the moles of the gas given the volume, temperature and pressure:
[tex]n=\frac{PV}{RT}[/tex]
Thus, we plug in 14.0 L, 300 K and 2.0 atm to obtain:
[tex]n=\frac{2.0atm*14.0L}{0.08206\frac{atm*L}{mol*K}*300K}\\\\n=1.14mol[/tex]
Best regards!
Can someone help, please...?
I really can't understand this...
Give one example of
a) Homogeneous mixture of two elements
Answer:
honey
Coffee
blood
Explanation:
These components are uniformly distrubuted and these cannot be seperated unlike heterogeneous
After reading that a solution is a homogeneous mixture, Hala wondered about her favorite
morning drink, grape juice. Which statement about the solution that makes up grape juice is
true? *
1Sugar is one of the solvents, and grapes are one of the solutes.
2Grapes are the solvent and water is one of the solutes.
3Water is the solvent, and sugar is one of the solutes.
4Sugar is the solvent, and water is one of the solutes.
3. Matter with a composition that is always the same is a(n)
substance
mixture
compound
Answer:
substance
Explanation:
A pure substance is a form of matter that has a constant composition (meaning it's the same everywhere) and properties that are constant throughout the sample (meaning there is only one set of properties such as melting point, color, boiling point, etc
2. Calculate the mass of Kool-Aid needed to make 0.1 L solutions at the following concentrations: a. 0.1 M b. 0.2 M c. 0.3 M d. 0.4 M e. 0.5 M
Which is an example of mechanical weathering?
Answer:
carbonic acid in water dissolving limestone
hope this ans helps
have a great day
in today's pandemic,how can you protect our ozone depletion?
Answer:
if you want to protect our ozone depletion you have aerosol products that don't contain HCFCs and CFCs as stimulus or incitement
Explanation:
why you should use aerosol because when the liquid mixture is freeded or released from the aerosol the liquid propellant becomes a gas so this can easily break up the product into a fine haze or a mist hope its helpful have a good luck
Please help will mark brainiest as well.!!
Using standard formation enthalpies, calculate the standard reaction enthalpy for this reaction. 6CO2(g) + 6H2O(l)C6H12O6 + 6O2(g) ANSWER: kJ/mol
Answer:
2802.5 KJ/mol
Explanation:
Calculate standard enthalpy of the Reaction :
6CO2(g) + 6H2O(l)C6H12O6 + 6O2(g)
using standard formation enthalpies . hence the standard enthalpy of the reaction = 2802.5 KJ/mol
attached below is the detailed solution
heeeeeeeeeeeeeeelpheeeeeeeeeeeeeeelp
Answer:
the mirror forms a virtual inlarged image
Explanation:
The Earth's early atmosphere consisted of what
What is a solution with a pOH value of 2 considered?
a. Neutral
b. Base
c. Salt
d. Acid
Which of the following is matter in its solid form?
HURRY FAST
Answer:
what are the awnser choices
Calculemos la formula empirica y molecular de carbonato de hierro Fe2(co3)3.Fe.38.3%C.12.3%.0.4 92% masa 292g
Respuesta:
292 g / mol;
Por favor, consulte la explicación.
Explicación:
El número de átomos de cada elemento en el compuesto: Fe2 (co3) 3.
Fe = 2; C = 3; 0 = 3 * 3 = 9
Fe2 = 112 g / mol
C = 12 g / mol
O = 16 g /
Masa molecular = ((112 + (12 * 3) + (16 * 9)
= (112 + 36 + 144)
= 292 g / mol.
Total = 2 + 3 + 9 = 14
Fe2 = 112/292 * 100% = 38,356%
C = 36/292 * 100% = 12,328 * '
O = (16 * 9) / 292 * 100% = 49,32%
I need help with #4 please
Answer:
1. Land 2. open 3. broken 4. Lava matter 5. Force of the plates
please help and show work
What is the volume of 5.7 moles of Hydrogen gas?
Why do power plants emit such a high percentage of pollutants?
They burn fossil fuels, which releases huge amounts of sulfur dioxide and nitrogen oxide that pollute the air. ... Two thirds of all sulfur dioxide and more than one third of all nitrogen oxides that pollute the air.
Someone help please ...
Answer:
Yes
Explanation:
two different people run a race the graphs track their distance vs. times during the race. Explain the difference between the two runners motions. use words like speed and acceleration.
Answer:
Runner A is moving at a constant speed, therefore has a positive acceleration.
Runner B is moving at a constant speed, stopping, then speeding up again.
Explanation:
CaC2 + 2H2O ⟶ C2H2 + Ca(OH)2
How many moles of water are needed to produce 56.8g C2H2?
Amount of moles of water is 4.36 mol
Explanation: M(C2H2) = 2·12.01 + 2·1.008 = 26.036 g/mol
Amount of substance is n= m/M= 56.8 g / 26.036 g/mol= 2.18159 mol
Water is needed 2·2.18 mol = 4.36 mol