Answer:
what?
Explanation:
Answer:
yes I am also his fan
hope it is helpful to you
1. What type of chemical reaction is the following equation?
AIBr3 +K → KBr + AI
Answer:
Explanation:
It is called a single replacement. K is one of the few chemicals that can force Aluminum to take on electrons. The balanced equation is
AIBr3 +3K → 3KBr + AI
Answer: Single Displacement (Substitution)
Explanation:
Aluminum Bromide + Potassium = Potassium Bromide + Aluminum
i need help please asap
Answer:
Bonding in chemistry is known as chemical bonding which means the interaction or attraction between molecules.
Chemical bonds are of different type such as ionic, covalent, hydrogen, and metallic. Ionic bonds are formed by the transfer of valence electron from one atom to other and there is unequal distribution of electrons between two or more atoms. Ionic bonds forms two oppositely charges ions positively charged (loses electron) or negatively charged (gains electron).
Covalent bond are the strong chemical bonds that form due to equal sharing of electron pairs between atoms. They form a stable element and have stable attraction or repulsive forces.
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Fill in the blanks to create the lesson question,
which is the broad question about gases that
Boyle's law answers. You will explore this
question in the lab experiment.
Lesson Question: What is the effect of
V pressure v on the volume of a gas?
3
COMPLETE
LID
Hypothesis: If the pressure on a gas is increased,
then its volume will
because
the gas molecules will
DONE
Intro
Boyle's law states that If the pressure on a gas is increased, then its volume will decrease because the gas molecules will gets closely packed at high pressure.
What is Boyle's law?According to Boyle's law, at constant temperature the volume of a gas is inversely proportional to the pressure. Therefore, as the pressure is increased, volume of the gas is decreased.
The volume of a gas is the total space it occupied . The gaseous particles can diffuse anywhere at low pressure and they not collide each other at this maximum spreading condition.
When the pressure is increased, the force of intermolecular attraction increases make them more compressed and the space occupied by them that is the volume of the gas reduces.
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Answer:
What is the effect of ✔ pressure on the volume of a gas?
Explanation:
edge 2023
In the context of the movie, what is the best synonym for "property?
Answer:
opiste of the word
Explanation:
Write the word and balanced chemical equations for the reaction between:
Sulfuric acid + aluminum hydroxide
Answer:
Alumminum hydroxide reacts with sulfuric acid as follows: 2Al(OH)3+H2SO4-->Al2(SO4)+6H2O.
Explanation:
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The process by which oxygen reacts with iron minerals in rock to form rust is called
Explanation:
your answer is oxidation
Answer:
Oxidation
Explanation:
The muscle responsible for the majority of a particular movement is known as the
a. prime mover
b. synergist
c. antagonist
d. fixator
Answer:
A.prime mover is Answer.
Explanation:
Prime mover. the muscle responsible for most of the movement in a group of muscles ; called the chief muscle.
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Which of the following best represents and explains the formula for a compound made from nitrogen and hydrogen?
Answer:NH4, because nitrogen needs four electrons, and each hydrogen needs one electron.
Explanation:
1.2 moles of oxygen represents how many atoms of oxygen
Answer:
2 × (6.022 × 10 23) Na atoms, or 1.2044 × 10 24 Na atoms.
Explanation:
One mole of oxygen contains 6.02 × 10²³ oxygen atoms or formula units. Hence, moles of contains 7.22 × 10²³ .
What is one mole ?One mole of a substance is its amount containing 6.02 × 10²³ atoms or molecules. This number is called Avogadro number. One mole of every elements contains Avogadro number of atoms.
Similarly one mole of every compound contains 6.02 × 10²³ molecules. The mass of one mole of compound is called its molar mass.
Oxygen is 16th element in periodic table. One mole of oxygen contains 6.02 × 10²³ oxygen atoms . Hence number of atoms of 1.52 moles is:
1.2 × 6.02 × 10²³ = 7.22× 10²³ .
Hence, there will be 7.22 × 10²⁴ oxygen atoms in 1.2 moles.
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which two types of rock could form after other rock melts into liquid magma
a. sedimentary
b. metamorphic
c. extrusive igneous
d. intrusive igneous
Answer:
a, b
Explanation:
look at rock cycle charts, I knew this since 2nd grade
Answer:
its c and d
Explanation:
I took the test got 100%
1
The process of a solid turning into a liquid is called
Answer:
Melting
Explanation:
Once heat is added it will turn to a liquid
Melting is the process of turning solid to liquid.
Above is a solubility curve for KNO3.
Solubility has nothing to do with the speed of dissolving; it's a measure of how much salt will dissolve at a given temperature.
The y-axis of the graph shows you how much KNO3 will dissolve in 100 g of water. In other words, it tells you the maximum amount of solute that will dissolve at different temperatures.
The x-axis tells you the minimum temperature needed to dissolve different amounts of KNO3 in 100 g of water.
Approximately how many grams of KNO3 will dissolve in 100 g water at 0 degrees Celsius?
Type in the number only; no units. Round your answer to the nearest whole number.
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About 9.8 g of potassium nitrate will dissolve in about 100 g of water at 0 degrees Celsius.
What is solubility curve?The term solubility curve refers to a plot of the concentration of a substance in solution against temperature. We can easily read off the amount of substance that has dissolved in solution using the solubility curve.
Looking at the solubility curve as shown, we can see that about 9.8 g of potassium nitrate will dissolve in about 100 g of water at 0 degrees Celsius.
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is phosphorus a pure substance or mixture
Answer: it is Not a pure substance because it consists of sodium so it would be a mixture because it contains sodium
Explanation:
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its mixture
Explanation:
phosphorus atoms has 15 electrons and 15 protons with valence 5 electron in outer shell and is highly reactive element
A reaction occurs that results in more products than reactants. What type of reaction is
'this?
Answer:
Endothermic reaction
Explanation:
Endothermic means that energy is absorbed leading to more product.
The reaction in which the products can return back to reactants is called reversible reaction. The reaction where more products are formed is called endothermic reaction where the products are more stable.
What is endothermic reaction?An endothermic reaction is a reaction where, the reactants absorbs heat energy and to produce new products. The term for heat absorption is called endothermic. Whereas the reaction in which heat is evolved is called an exothermic reaction.
In endothermic reaction, reactants gains thermal energy to overcome the energy barrier for the reaction. Therefore the activation energy for products will also be lower indicates their stability.
The enthalpy change that the change in heat absorbed for the endothermic reaction will be positive that is ΔHrxn is +ve. Endothermic phase change involves an increase in entropy. Hence, the reaction that result in more products than reactants is endothermic.
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Why is there a border between light and dark on the moon
Answer:
because the sun illuminates the half of the moon that's facing it leaving the other half dark
Which salt is the most soluble in water at 50⁰c
Answer:
Table salt, or sodium chloride (NaCl), the most common ionic compound, is soluble in water (360 g/L)
please help which one is it
Answer:
answer is 0.5
Explanation:
H= 2X l =2
0=16 xl = 16
So 16+2=18
lmol of H2O → 18g
xmol of H2O →9g
:. 9÷ 18=0.5
x= 0.5
How is ethanol different from carbon dioxide?
A: Ethanol is made of oxygen.
B: Ethanol is made of hydrogen.
C: Carbon dioxide only has two atoms.
D: Carbon dioxide only has one atom.
Answer:
B
Explanation:
Ethanol is C2H6O. Carbon diozidex is CO2. Ethanol has hydgrogen, where carbon dioxide does not.
Sound travels faster through solids than it does through either liquids or gases a student could verify this statement by
Group of answer choices.
A. Distance that sound travels through a solid, a liquid, and a gas.
B. Pitch of sound when it passes through a solid, a liquid, and a gas.
C. Distance sound travels through a solid, a liquid, and a gas at varying temperatures.
D. Time required for sound to travel a set distance through a solid, a liquid, and a gas.
Answer:
D. Time required for sound to travel a set distance through a solid, a liquid, and a gas.
Explanation:
Sound are mechanical waves that are highly dependent on matter for their propagation and transmission.
Sound travels faster through solids than it does through either liquids or gases. A student could verify this statement by measuring the time required for sound to travel a set distance through a solid, a liquid, and a gas.
Mathematically, the time required for sound to travel is given by this formula;
[tex] Time = \frac {distance (x)}{speed (v)} [/tex]
Hence, the time taken for sound to travel through each medium (solid, liquid and gas) would be measured, recorded and compared to one another.
I would appreciate help on writing an equalibrium constant expression.
Explanation:
it would be
[tex]kc = (products) \div (reactants) \\ kc = \frac{nh3)^{2} \times (co2) \times (h2o)}{(nh4)^{2}co3 }[/tex]
this the expression however when you are working out Kc do not include nh4^2co3 as it is a solid and it's concentration remains constant so remember to remove the nh4^2co3 and usage would just have the top part to work out ok
How is carbon dioxide released by animals? *
O during inhalation
O during exhalation
O during urination
O during eating
Answer:
Exhaled
Explanation:
Answer:
Exhale
Explanation:
Just like humans
Write the chemical formula for each:
ammonium nitrate
iron(II) sulfide
magnesium hydroxide
titanium(II) chloride
cobalt(III) oxide
potassium sulfide
barium acetate
magnesium bromide
lithium carbonate
potassium permanganate
Answer:
Ammonium nitrate is NH4NO3
iron(II) sulfate is FeSO4
magnesium hydroxide is MG(OH)2
titanium(II) chloride is TiCI2
cobalt(III) oxide is Co2O3
potassium sulfide is K2S
Barium acetate is C4H6BaO4
magnesium bromide is MgBr2
lithium carbonate is Li2CO3
potassium permanganate is KMnO4
If we know the specific heat of a material, can we determine how much heat is released under a given set of circumstances?
Answer:
Yes
Explanation:
literally have no idea i just got it right on ck-12 lol
Yes, we determine how much heat "Q" is released under a given set of circumstances if we know the specific heat "c" of the material
The specific heat capacity "c" of a material is the amount of heat required to raise the temperature of a unit substance by 1kg. Mathematically, it is expressed as:
[tex]c=\frac{m}{Q\triangle \theta}[/tex] where:
m is the mass of the object
Q is the amount of heat absorbed or released by the object
Hence from the formula that we determine how much heat "Q" is released under a given set of circumstances if we know the specific heat "c" of the material
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Which of the following electromagnetic waves has the shortest wavelength
Gamma rays have the shortest wavelength
Which object would have a greater velocity change?
Answer:
The object with less mass will have a greater change in velocity
Explanation:
Answer:
the one with the smaller object mass becaise you get more force upon impact with less effort to move
Is c6h8 molecular or empirical
Answer:
Molecular
C6H8 has the empirical formulae as C3H4
Write the word and balanced chemical equations for the reaction between:
Potassium hydroxide + hydrochloric acid
Answer:
Potassium hydroxide + Hydrochloric acid → Potassium chloride + Water.
potassium hydroxide + hydrochloric acid = neutralisation
How will you prepare hydrogen from zinc and dilute acid.
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What would happen to the rate of evaporation if you moved all the containers outdoors into direct sunlight?
Answer:
Molecules contained in a liquid evaporate from the surface area. This means that the larger the surface area, the faster the rate of evaporation. ... This means all the other factors that affect the rate of evaporation are identical. Leave the containers for one hour.
Explanation:
Answer:
Evaporation would accelerate.
Explanation:
Direct sunlight increases the thermal energy on the containers, increasing evaporation.