Answer:
cold
Explanation:
Weather is created by the movement and interaction of air masses of different temperatures. ... Air masses are commonly classified according to four basic source regions with respect to latitude. These are Polar (cold), Arctic (very cold).
what is the mass in grams of 0.250 mol of the common antacid calcium carbonate?
Answer:That's 25.8 g of calcium carbonate In 100 g of the sample.
Explanation:
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who originally proposed the concept that matter is composed of tiny indivisible particles
Answer:
Aristotal
His view of atoms was very different from how we think of atoms now but he was technically the first person to propose the basic idea of atoms.
What is the balanced chemical equation for the combustion of sulphur
Answer:
S+O2⇒SO2
Explanation:
Answer:
The balanced equation is S + O2 → SO2
please help me
convert 12,800 ounces to kg.
I need a solved problem!
¿cuáles son las ventajas de un experimento científico?
Answer:
Explanation:
Hacer proyectos de ciencia ayuda a desarrollar el ingenio de un niño
9.56 x 105 cg is how many grams?
100 centigrams = 1 gram
Please help me.... someone deleted my question before so I'm trying again.
Answer:
See Explanation.
Explanation:
Element Name: Neon (check a periodic table)
Atomic Number: 10 (number of protons)
Atomic Mass: 20 (number of protons + number of neutrons [electrons have negligible mass])
Protons: 10 (P in the black circle)
Electrons: 10 (number of red dots)
Neutrons: 10 (N in the black circle)
Valence Electrons: 8 (number of red dots on the outermost ring)
If you have any questions, let me know!!
The limitation of Bohr's model is that electrons do not actually move in
Answer:
The Bohr atomic model did not make correct predictions of large- sized atoms and provided sufficient information only for smaller atoms.
Why
would scientists synthesize natural resources
Answer:
so that the can keep reusing it and reusing it instead of wasting materials
Explanation:
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Explain why rubidium is less reactive than caesium.
Answer:
Like other alkali metals, rubidium metal reacts violently with water. As with potassium (which is slightly less reactive) and caesium (which is slightly more reactive), this reaction is usually vigorous enough to ignite the hydrogen gas it produces.
Explanation:
If it takes 40 joules to heat a piece of barium weighing 20g from 10.0°C to 17.0°C, what is the specific heat of the barium?
Answer:
The specific heat of Barium is 0.204 J/g K
English
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18010
►
Which change of state is taking place?
lose together but can slide
ms lose energy, they move
ocked in place because of
em.
gas to solid
gas to liquid
liquid to solid
solid to liquid
Answer:
gas to liquid is condensation
liquid to solid is freezing
solid to liquid is melting
gas to solid is deposition
A woman is swimming across a cold lake. Her body temperature is 98 degrees and the lake water is 60 degrees. Which has more thermal energy, the woman or the lake? Explain your answer!
I think the lake because of how heat is transferred or something. Just check out the first law of thermodynamics.
Answer:
the woman
Explanation:
Calculate the wavelengths of the following objects:
Part 1 (1 point)
See Periodic Table See Hint
a muon (a subatomic particle with a mass of 1.884 x 10-25 g) traveling at 340.0 m/s
nm
Part 2 (1 point)
an electron (me = 9.10939 x 10-28 g) moving at 4.15 x 106 m/s in an electron microscope
nm
Part 3 (1 point)
an 82.0 kg athlete running a "4-minute mile" (i.e. 4.00 min/mile)
x 10-25
nm
Part 4 (1 point)
Earth (mass = 6.00 x 10278) moving through space at 3.20 x 10m/s
x 10
nm
Sodium belongs to Group I and Period 3 of the Periodic Table and iodine belongs to Group VII and Period 5. Based on this information, what can you tell about the atoms of sodium and iodine?
Explanation:
Sodium is a highly reactive metal since it has 1 valence electron, while Iodine is a less reactive non metal with 7 valence electrons.
What is the primary source of light energy?
Question 2 options:
lightening
moon
electricity
the sun
Answer:
moon the sun.............hope it helps.......
How do gas laws predict absolute zero?
Answer:
If a gas contracts by 1/273 of its volume for each degree of cooling, it should contract to zero volume at a temperature of –273°C; this is the lowest possible temperature in the universe, known as absolute zero.It appeared that an “ideal gas” at constant pressure would reach zero volume at what is now called the absolute zero of temperature. Any real gas actually condenses to a liquid or a solid at some temperature higher than absolute zero. Therefore, the ideal gas law is only an approximation to real gas behaviour.
La serie de Lyman se situa en la region ultravioleta del espectro. ¿Que linea quedara mas cerca de la zona visible del espectro? Explica por qué.
Answer:
Lyman series of hydrogen atom lies in the ultraviolet region, Balmer series lies in visible region, Paschen series lies in near infrared region whereas Bracket, Pfund as well as Humphrey series lie in far infrared region of electromagnetic spectrum.
why is water able to easily dissolve ionic compounds?
Answer:
To dissolve an ionic compound
Explanation:
the water molecules must be able to stabilize the ions that result from breaking the ionic bond. They do this by hydrating the ions. Water is a polar molecule. ... When you place an ionic substance in water, the water molecules attract the positive and negative ions from the crystal.
Which is greater: the number of atoms in one mole of calcium, or the number of molecules in one mole of carbon dioxide (CO2)?
The number of atoms in one mole of Calcium and one mole of Carbon Dioxide is the same.
How to know the number of atoms?The number of atoms is determined by Avogadro's number (a constant number that determines the atoms per mole).
Avogadro's number is equivalent to 6.02 x 10²³ atoms.
This means one mole of each element contains 6.02 x 10²³. However, this number of atoms changes according to the amount of the substances or moles.
How many atoms does 1 mole of Calcium and 1 mole of Carbon Dioxide contain?
Considering these are two different substances but the number of moles is the same (1 mole each) the number of atoms is equal to Avogadro's number or 6.02 x 10²³ atom.
Learn more about atoms in: https://brainly.com/question/13981855?referrer=searchResults
When compared to the standard hydrogen electrode, zinc has a reduction potential of -0.762 volts and copper a reduction potential of + 0.342 volts. What is the reduction potential when zinc and copper are connected to one another?
+0.420 volts
-0.420 volts
+1.104 volts
-1.104 volts
Answer:
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about chemistry notes
Answer:
what about chemistry notes?
Explanation:
What happens when the light enters the water and then when it leaves the water?
Answer:
As light initially enters the water, it is refracted as in figure (b) and then reflected off the mirror (at the bottom of the glass). Upon exiting the water, the light is bent away from the normal as it passes from water (more dense) and into air (less dense).
Which common substance is an acid?
Question 3 options:
water
bleach
vinegar
baking soda
Explanation:
vinegar or acetic acid is an acid
a. Calcular el porcentaje en masa de una disolución que
contiene 20 g de azúcar en 280 g de agua:
Answer:
C po answer ko
Explanation:
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is the freezing of mercury reversible or irreversible
Answer:
reversible
Explanation:
The freezing of mercury is reversible because solid mercury can be melted.
Two reactants, each having a mass of 50.0 g, react fully in a beaker. What is the total mass of the products in the reaction?
Answer:
100g......sieiekeskslapaokdkz
why is propene the second member of the alkene homologous series?
why is it not ethene?
Answer:
Because alkenes are hydrocarbons with at least one carbon-carbon double bond the alkene homologous series starts at ethene C2H4.
Explanation:
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Answer:
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Explanation:
Major parts of the microscope that provides light to the microscope
Answer:
Explanation:
Illuminator. is the light source for a microscope, typically located in the base of the microscope. Most light microscopes use low voltage, halogen bulbs with continuous variable lighting control located within the base.