Answer:
Explanation:
A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the Sun.
4Hg(OH)2+ H3PO4 —> Hg3(PO4)2 + 5H20
Is this equation balanced or not? Give a full explanation and I’ll mark as brainliest too
Answer:
Not balanced.
Explanation:
It a double displacement reaction of a base and acid. The balanced equation is:
3Hg(OH)2 + 2H3PO4 → Hg3(PO4)2 + 6H2O
3. How did your hypothesis work out? What was surprising in this experiment?
someone help please
Answer:
Whats the hypothesis and the experiment?
Explanation:
I cant really help without context
Please help me with this ill mark brainliest please please im literally crying here
Answer:
B)
Explanation:
The mass remains the same before the reaction and after. A chemical reaction takes place when vinegar and baking soda are mixed. One of the new substances formed is carbon dioxide gas. If the carbon dioxide gas is contained, the mass of the substances will stay the same according to the Law of Conservation of Mass
Answer:
B is the correct option.
Explanation:
The system is a closed one because Alison closed the container with a balloon immediately. With this mass can't change and law of conservation of mass states in chemical change, mass in neither created nor destroyed.
How would the electron configuration of nitrogen change to make a stable configuration?
(1 point)
Answer:
it would gain three electrons
Explanation:
have a nice day
Answer: It would gain THREE electrons
Explanation:
took the assessment got 100% hope you get the same
What is the Coriolis Effect?
Question 5 options:
the circulation route of trade winds moving from east to west
the way that tropical winds circulate to form hurricanes and large storms
the rapid movement of winds found in the upper atmosphere
the curved path of global winds due to the rotation of Earth on its axis
Answer:
The answer is D. Due to the rotation of earth being a cause is true.
Explanation:
Describe how the properties of elements in the same group differ to the properties of elements in the same period.
Answer:
All the elements of a group have similar chemical properties because they have same no. of valence electrons in their outermost shell.
All the elements of a period have different chemical properties because they have different no. of valence electrons in their atoms.
Answer:
4
Explanation:
Same group elements have the same physical properties and same elements in period have same chemical properties
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Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.
2NaClO3 --> 2NaCl +3O2
How many moles of NaCl were produced by 3 moles of NaClO3? Round your answer to the nearest whole number.
[tex]\\ \bull\sf\longmapsto 2:2=3:x[/tex]
[tex]\\ \bull\sf\longmapsto \dfrac{2}{2}=\dfrac{3}{x}[/tex]
[tex]\\ \bull\sf\longmapsto \dfrac{3}{x}=1[/tex]
[tex]\\ \bull\sf\longmapsto x=3mol[/tex]
Why the melting point of sodium chloride is higher than naphthalene
Answer:
This is because sodium chloride has electrostatic forces of attraction and thus this tends to hold the the sodium and chloride ions very strongly and thus responsible for the high melting point. Sodium chloride is very soluble in water than naphthalene.
Explanation:
This is because sodium chloride electrostatic forces of attraction ad thus this tend to hold the sodium and chlorine ions very strongly thus it is responsible for the high melting point.
please help me fast!!
Answer:
small i think
Explanation:
What are the consequences of building a equitable water sanitation
Answer:
Water and sanitation services contribute to greenhouse gas emissions. Choice of wastewater treatment technologies, improved pumping efficiency, use of renewable sources of energy, and within-system generation of energy offer potential for reducing emissions.
Explanation:
Can you please check my answer?
Answer:
!!!!!!!!!!!!!!!!!
Explanation:
!!!!!!!!!!!!!!
The temperature of the ideal gas in the container shown is 300k. The gas occupies a volume of 1.27. What would be the volume of the gas if it’s temperature were decreased to 100k?
Answer:
0.432
Explanation:
The temperature of the ideal gas in the container shown is 300K. The gas occupies a volume of 1.27. What would be the volume of the gas if it’s temperature were decreased to 100K?
At 100K the particles are moving 1/3 as fast as 300K so the volume would be
1/3 X (1.27) =0.423
How many protons, neutrons, and electrons make up an ion of
radium-208 that has a +2 charge?
Answer:
proton=88
electron=88
neutron=138
E is energy in joules
v is frequency
h is Planck's constant, h = 6.626 x 10-54
A gamma ray has a wavelength of 3.0x10-12 m. Calculate the
frequency of this wave.
O a
1.00 x 10-20 HZ
1.00 x 1020 Hz
Oc
9.00 x 10-4 Hz
Od
3.00 x 100 HE
Question 3 (1 point)
Answer: .
8575,387w40-7564826=6.626x10-54
Explanation: .
how to gain weight?
explain me please.
Answer:
just do it
Explanation:
However, there are also many people with the opposite problem of being too skinny (2Trusted Source).
This is a concern, as being underweight can be just as bad for your health as being obese.
Additionally, many people who are not clinically underweight still want to gain some muscle.
Whether you’re clinically underweight or simply struggling to gain muscle weight, the main principles are the same.
This article outlines a simple strategy to quickly gain weight — the healthy way.
Answer:
Eat more than what calories you burn, eat food with nutrients and eat more frequently. Exercise so you can gain muscle.
Write a balanced chemical equation for calcium carbonate and water
Answer:
Ca(OH)2 + CO2 --> CaCO3 + H2O
Explanation:
A reaction of 17.0 g of ammonia with 26.6 g of chlorine gas
produces 3.50 g of nitrogen. What mass of ammonium chloride
is produced in the reaction?
Answer: if doing it on ck-12 the answer is 40.1
Explanation:
There are produced 40.1 grams of ammonium chloride (NH₄Cl) in the reaction between 17.0 g of ammonia (NH₃) and 26.6 g of chlorine gas (Cl₂).
The reaction between ammonia and chlorine gas is the following:
8NH₃ + 3Cl₂ → 6NH₄Cl + N₂
Initially, we have:
[tex]m_{NH_{3}}[/tex]: mass of ammonia = 17.0 g[tex]m_{Cl_{2}}[/tex]: mass of chlorine gas = 26.6 g[tex]m_{N_{2}}[/tex]: mass of nitrogen = 3.50 gAccording to the conservation of mass, matter cannot be created or destroyed, only can be transformed, so the mass of the reactants must be equal to the mass of the products.
The mass of ammonium chloride produced is:
[tex] m_{r} = m_{p} [/tex]
[tex] m_{NH_{3}} + m_{Cl_{2}} = m_{NH_{4}Cl} + m_{N_{2}} [/tex]
[tex] 17.0 g + 26.6 g = m_{NH_{4}Cl} + 3.50 g [/tex]
[tex] m_{NH_{4}Cl} = 17.0 g + 26.6 g - 3.50 g = 40.1 g [/tex]
Therefore, 40.1 grams of ammonium chloride are produced in the reaction.
Learn more here:
https://brainly.com/question/14236219?referrer=searchResultshttps://brainly.com/question/13383562?referrer=searchResultsI hope it helps you!
In a varve, summer is represented by _____.
sediment from melting glaciers being deposited in lakes
clay from wind-blown dust
ash from nearby volcanoes
None of these
Answer:
sediment from melting glaciers being deposited in lakes
Explanation:
I took the test
True or False. Air masses are huge bodies of air that have similar temperature, salt content and pressure at a given height.
Explanation:
Air masses are large volumes of air that have generally the same temperature and pressure.Spending time studying the 5 there
Water is placed in an electrolysis machine. The water placed in the machine begins to bubble. The gas is collected in two separate containers . It is noticed that when a glowing splint is placed in one gas, it flames up. In the other gas, a glowing splint produces a small popping sound signifying a tiny explosion........................................What is the balanced chemical equation for this reaction?
The equation of the electrolysis of water is as follows; 2H2O(l) ----> 2H2(g) + O2(g).
What is electrolysis?Electrolysis is the break down of a compound owing to the passage of direct current through the compound. The electrolysis of water yields the compounds hydrogen and oxygen in a ratio of 2:1.
The equation of the electrolysis of water is as follows; 2H2O(l) ----> 2H2(g) + O2(g).
Learn more about electrolysis: https://brainly.com/question/12054569
what is diffusion? Explain the energy that exists between particles....
Answer:
Diffusion :
the spreading of something more widely.
-AND-
Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects.
Explanation:
Hope this helps :)
Pls make brainliest :P
And have an amazing day <3
can we separate an azeotropic mixture by distillation?why do we call it a mixture?
history of atomic structure
Matter is composed of indivisible building blocks. This idea was recorded as early as the fifth century BCE by Leucippus and Democritus. The Greeks called these particles atomos, meaning indivisible, and the modern word “atom” is derived from this term. Democritus proposed that different types and combinations of these particles were responsible for the various forms of matter. However, these ideas were largely ignored at the time, as most philosophers favored the Aristotelian perspective.
alcoholic fermentaion occurs when there is a lack of what
It requires two sticks of butter to make a batch of 15 cookies. How much butter will it take to make 300 cookies?
Answer:
40
Explanation:
300÷15=20
20×2=40
hope this helps
Answer:
300(2)
Explanation:
given:
2 sticks of butter
how much butter if 300
multiply it
Directions: Answer the questions below. Write your answer on the space provided for each number.
1. Draw a schematic diagram of a series and parallel circuit
2. How are the appliances connected in your house? Identify which among these are connected in series? In parallel?
3. Which is said to be the more efficient connection to use at home? Series or Parallel? Explain your answer.
The type of energy stored in food and batteries is
Question 1 options:
Thermal
chemical
electromagnet
Kinetic
Answer:
chemical
Explanation:
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Which gases are needed for animal and plant respiration? Select two options. FAST ITS TIMED
oxygen
nitrogen
carbon dioxide
neon
carbon
Which element has fewer than four dots in its electron dot diagrams?
arsenic (As)
sulfur (S)
krypton (Kr)
gallium (Ga)
Answer:
Gallium (Ga)
Explanation: