Answer:
Melting ice speeds up climate change.
Explanation:
The Arctic helps to regulate the world's temperature, so as more Arctic ice melts the warmer our world becomes.
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%
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
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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.
Which of the following has the highest in chemical energy (energy stored in chemical bonds)?
Question 2 options:
ADP
ATP
ASP
APP
Answer:
ADP
Explanation:
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
which is the SI unit used to measure the temperature of a substance
Answer:
Kelvin
Explanation:
Answer:
Kelvin
Explanation:
How many atoms for each element in this compound:
Pb3(PO4)2
Pb =
P=
O=
Answer:
In the compound Pb3(PO4)2, there are 3 Pb atoms, 2 P atoms, and 8 O atoms.
Let me know if this helps!
There are 3 atoms of pb(Lead), 2 atoms of P(Phosphorus) and 8 atoms of O(Oxygen) are present in Pb3(PO4)2.
What is an atoms?An atom is the smallest constituents of matter that can neither be created nor be destroyed.An atom It consists of a central nucleus, usually surrounded by electrons. Each electron is negatively charged. The nucleus is positively charged, and contains relatively heavy particles known as protons and neutrons.What are Compounds?
A compound is a combination of atoms of same or different types of an element in a fixed ratio.
In the given question Pb3(PO4)2 is a compound of lead phosphate which is made up of 3 atoms of pb(Lead), 2 atoms of P(Phosphorus) and 8 atoms of O(Oxygen).
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hear me out!! am I the only one who gets headaches on the daily? why do I get them?
Answer:
Same i have headaches daily, maybe from infections such as meningitis or Intracranial pressure that's either too high or too low or id.k.
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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WHOEVER ANSWERS A GOOD ANSWER I WILL GIVE BRAINLIEST!
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.
Question: If red dye is added to cold water and blue dye is added to warm water, which dye will
spread out quicker?
Answer:
Blue dye spreads out quicker
Explanation:
This is because the dye gets spread out by water molecules. Warm water has faster moving water molecules than cold water.
Fe2O3 the valance number
Answer:
3
Explanation:
Answer:
Valence of Fe-3
Valence of O-2
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
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
The process by which oxygen reacts with iron minerals in rock to form rust is called
Explanation:
your answer is oxidation
Answer:
Oxidation
Explanation:
Approximately what is the minimum temperature needed to dissolve 10 g of KNO3 in 100 g H2O?
Round your answer to the nearest whole number and type in the number only; no units.
Answer:(a) Potassium nitrate will begin to crystallise at about 56 °C, when its solubility is 100 g/100g water.
Explanation:
Which of the following electromagnetic waves has the shortest wavelength
Gamma rays have the shortest wavelength
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.
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
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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Which is a TRUE statement about
London Dispersion Forces?
ELECTRON moving causes partial
positive & negative charges creating
attraction
PROTON movement causes partial
positive & negative charges creating
attraction
Answer:
The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. Dispersion forces are present between any two molecules (even polar molecules) when they are almost touching.
Thus PROTON movement causes partial positive & negative charges creating
attraction will be crrt
А
What is the chemical symbol for Hydrogen?
A.OCH
B.оне
C.Н
D.он20
Answer:
the answer to this is ( H )
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
what properties of aluminum make it particularly useful in drinking cars
Answer:
in doesn't rust which sends meatel into the drink
Explanation:
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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.
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
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:
How will you prepare hydrogen from zinc and dilute acid.
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)