Answer:
the urinary system??
Explanation:
A
occurs when what the scientist expects changes how the results of an experiment are viewed?
A. conundrum
B. bias
C. impass
Answer:
conundrum
Explanation:
its not bias or impass
what is the molal freezing point of C6H6?
Answer: 4.90
Explanation: The molal freezing point constant of C6H6 is 4.90 and its melting point is 5.51∘C. A solution of 0.816 g of a compound A dissolved in 7.5 g of benzene freezes at 1.59∘C. Calculate molecular weight of compound A
Answer:
4.90
Explanation:
The molal freezing point of C6H6 is 4.90
How is stoichiometry used to calculate energy absorbed when a mass of liquid boils?
Answer:
b
Explanation:
Stoichiometry is used to calculate energy absorbed when a mass of liquid boils is Grams liquid xmol/gx∆Hvap.
What is stoichiometry?Stoichiometry is a branch of science that deals with the relationship that occur between the products and reactants in a reaction base on the mass and volume of substances involved.
Therefore, Stoichiometry is used to calculate energy absorbed when a mass of liquid boils is Grams liquid xmol/gx∆Hvap.
Learn more about stoichiometry below.
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Which of the following is not a controllable risk factor?
a. smoking
b. inactivity
c. aging
d. over eating
Answer:
C) Aging
Explanation:
You can't stop that or change the rate that you age at. its inevetable :D
Write the chemical formula for gold (I) sulfide.
Answer
Au2s
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What is the charge of this atom?
65 protons
60 electrons
A)-5
B)+5
C)0
Answer:
B. +5
Explanation:
which type of electromagnetic radiation has the shortest wavelength?
A: Microwaves
B: Radio waves
C: Ultraviolet light
D: Visible light
The subject is science
Answer:
Explanation:
It's radio waves because the higher the frequency, the shorter the wavelength. From crest to crest, the wavelength of a radio wave is the shortest. The longest would be ultraviolet light, then visible light, then microwaves! And since radio waves have the highest frequency out of any of them, it has the shortest, look up photoelectron spectroscopy and you'll see! Hope it helps!
Describe how sodium (Na) and chlorine (Cl) interact to form an ionic compound. Specifically, what is happening to an electron?
which of the following substances has a molar mass of 208 grams?
A. P2O5
B. BaCl2
C. AlCl3
D. MgCl2
Answer:
answer - a
Explanation:
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Answer:
The answer is A
Explanation:
I'm not 100% sure but, its probably A.
I need help, lots of points to you, please give genuine answers, will mark brainliest.
Answer:
this is hard
Explanation:
Which expression is equal to the number of grams (g) in 2.43 kilograms (kg)?
2.43 kilograms times StartFraction 1000 grams over 1 kilogram EndFraction.
2.43 grams times StartFraction 1 kilogram over 1000 grams EndFraction.
StartFraction 1 over 2.43 kilograms EndFraction times StartFraction 1000 grams over 1 kilogram EndFraction.
StartFraction 1 over 2.43 kilograms EndFraction times StartFraction 1 kilogram over 1000 grams EndFraction.
Answer:
A. 2.43 kg x 1000 g/1 kg
Explanation:
I said so
Would you expect manganese(II) oxide, MnO, to react more readily with HF(aq) or NaOH(aq)?
Answer:
NaOH(aq)
Explanation:
NaOH(aq) is known to precipitate Mn^2+ ions according to the following reaction; Mn^2+(aq)+2OH^−(aq)↽−−⇀Mn(OH)2(s)
Hence, manganese(II) oxide reacts more readily with NaOH(aq) under ordinary conditions precipitating the metal hydroxide solid. This is one of the characteristic reactions of Mn^2+.
Check out this long-form version of the periodic table. It shows where the two rows of
elements from question 4 really belong in the periodic table. Think about the challenges of
using this version of the periodic table.
Which statement offers the most likely explanation of why the long-form version of the
periodic table is seldom used?
The elements in the separate group are so rare that they do not occur in nature.
The elements in the separate group have very little in common with one another.
The long-form version no longer keeps the elements in order of increasing atomic
number.
The long-form version is too wide to easily fit on a computer screen or sheet of
paper.
Answer:
The long form version is too wide to easily fit on a computer screen or sheet of paper
Explanation:
Identify the type of reaction depicted below:
2SO2(g)
+
O2(g) --> 2SO3(g)
Answer:
Combination reaction
Explanation:
In Chemistry, elements and compounds are involved in a process called chemical reactions, which are of different types namely: combination, decomposition, double replacement, combustion etc. A combination reaction is that reaction in which two or more substances called the REACTANTS combine together to form a single new substance called the PRODUCT.
In this case, a reaction is depicted as follows:
2SO2(g) + O2(g) --> 2SO3(g)
In this reaction, compound SO2 combines chemically with element O2 to form a single new compound SO3. Hence, this is a type of COMBINATION REACTION.
explain how you know the numbers of atoms in your formula. Carbon Monoxide
Explanation:
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Explain the importance of valence electrons in chemical bonding.
Answer:
Explanation: Understanding valence electrons is key to understanding chemical bonding. Delocalized valence electrons produce metallic bonds (bonds between atoms of metals) which give metals unique properties such as conductivity and ductility (draw metal into wires)
Speed of 5km. Pls help
Answer:
It's either A. or B. Im going with B. since the person is walking a constant speed
Explanation:
acceleration is basically when someone or something is increasing in speed
This is a science question.
What is the acceleration of this helicopter?
Answer:
7m/s
Explanation:
Is the acceleration of the helicopter
Select all the correct answers.
Based on the enthalpy changes given for the reactions, which reactions are endothermic?
Answer:
The reaction for which ΔH is positive are endothermic reactions. Explanation: The energy changes occur during the bonds formation and bonds breaking
Question 1: A blocked-off meander eventually becomes
A)an oxbow lake.
B)part of the stream again
C) alluvial fan
D)rejuvenated.
Question 2: As the velocity of a stream decreases, which transported particle size would settle to the stream’s bottom first?
A) slit
B) clay
C)pebble
D) sand
What is the measurement from the line of origin to the crest?
A. Trough
B. Amplitude
C. Crest
D. Wavelength
Forces of attraction between particles increase as the particles move faster and
farther apart.
True
False
Answer:
false
Explanation:
as the particles move further apart their forces of attraction become qeak
Help! Please help in a hurry!
Answer:
Expiremental group for -first one. Second one-2
Explanation:
I Had Those QuestIons On mY tEsttt!!
what further observation led mendeleev to create the periodic table
Answer:
;,knbbbknnbkhbln bhbj k; b; m j
Explanation:
Equilibrium reactions will go back and forth depending on how many reactants or products there are.
False or True
Water flows through a pipe at a rate of 620 gallons every 5 1/2 minutes expressed this rate of flow and cups per second
The rate of flow of Water flows through a pipe will be 30 cups per second.
What is the rate of flow?The distance covered by the particle or the body in an hour is called the rate of flow. It is a scalar quantity. It is the ratio of gallons to time.
We know that the speed formula
Rate of flow = Gallons/Time
Water flows through a pipe at a rate of 620 gallons every 5 1/2 minutes expressed at this rate of flow and cups per second.
We know that in one gallon, there are 16 cups.
5.5 minutes = 330 seconds
The rate of flow will be
Rate of flow = (620 x 16) / 330
Rate of flow = 30 cups per second
The rate of flow of Water flows through a pipe will be 30 cups per second.
More about the rate of flow link is given below.
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A transformer has 150 turns in its primary coil and 50 turns in its secondary coil. If the input voltage is 12 V, what is the output voltage?
Answer:
36V
Explanation:
Given parameters:
Number of turns in primary coil = 150turns
Secondary coil turn = 50turns.
Input voltage = 12V
Unknown:
Output voltage = ?
Solution:
For this transformer problem, we use the expression;
[tex]\frac{N_{s} }{N_{p} }[/tex] = [tex]\frac{V_{s} }{V_{p} }[/tex]
Insert the parameters and solve;
Ns is the number of secondary turns
Np is the number of primary turns
Vs is the secondary voltage
Vp is the secondary voltage
Insert the parameters and solve;
[tex]\frac{150}{50}[/tex] = Output voltage / 12
Output voltage = 12 x 3 = 36V
To what pressure must a gas be compressed in order to get into a 3.00 cubic foot
tank the entire weight of a gas that occupies 400.0 cu. ft. at standard pressure?
Answer:
133.3atm
Explanation:
Given parameters:
Initial volume = 400ft³
Final volume = 3ft³
Initial pressure = 1atm
Unknown:
Final pressure = ?
Solution:
To solve this problem, we apply Boyle's law which states that "the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".
Mathematically;
P₁V₁ = P₂V₂
P and V are pressure and volume
1 and 2 are initial and final states;
Insert parameters and solve;
1 x 400 = P₂ x 3
P₂ = 133.3atm
Etiquetas de productos de casa formula química, nombre de la formula, y el nombre del producto. Ejemplo NaCL, Cloruro de sodio, sal.
Answer:
Azucar, bicarbonato de sodio, lavandina, vinagre, amoniaco.
Explanation:
Podemos numerar estos compuestos
Azucar → Sacarosa → C₁₂H₂₂O₁₁
Lavandina → Hipoclorito de sodio → NaClO
Vinagre → Ácido acético → CH₃COOH
Bicarbonato de sodio → NaHCO₃
Amoníaco → NH₃
what are some natural resources that are limited on earth
Answer:
oil, ores, and fossils.