Answer:
poly = many
mer = molecule
polymer = many molecules
I dont know about question 2 sorry lad
glass
ceramics
conposites
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.
What is the correct name for (NH4)4P407?
Answer:
Diammonium hydrogen phosphate
Explanation:
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.
how would bleach in dyed water be physical change?
Answer:
it would be changing the colors of it.
Answer:
The colors would be different. Also, the texture would be different.
Explanation:
Hope you have a good day! Brainliest? :)
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.
To find more on endothermic reactions, refer here:
https://brainly.com/question/23184814
#SPJ2
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).
Learn more about atoms here: http://brainly.com/question/6258301
#SPJ2
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.
Find more on Avogadro number:
brainly.com/question/11907018
#SPJ6
А
What is the chemical symbol for Hydrogen?
A.OCH
B.оне
C.Н
D.он20
Answer:
the answer to this is ( H )
what is the name of the compound Cu(IO3)
Answer:
Copper Iodate
Cu(IO3) is Copper Iodate
A balloon has a volume of 4.29 liters at a pressure of 100.0atm. If the pressure of the balloon is decreased to 85.5 atm, what will be the be the new volume of the balloon
Answer:
5.01 liter
Explanation:
so thats the answer of volume of a balloon
what is the chemical formula for CP
Answer:
C 21 H 38 NCl
Explanation:
I hope this helps...
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
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:
what properties of aluminum make it particularly useful in drinking cars
Answer:
in doesn't rust which sends meatel into the drink
Explanation:
u are welcome
how much faster will ammonia vapor travel across a room then carbon dioxide
a. 0.622
b. 1.39
c. 7.55
d. 1.61
Answer:
D) 1.61 times faster
Explanation:
[tex]vrms_{NH3}[/tex] = √(3)RTM
R constant= 0.08206
T=constant, so in this problem we dont need a value for it
M=17.031 g/mol
√(3)(0.08206)(17.031)= 2.047
[tex]vrms_{CO2}[/tex] = √(3)RTM
R constant= 0.08206
T=constant, so in this problem we dont need a value for it
M= 44.01 g/mol
√(3)(0.08206)(44.01)= 3.29
Since we are trying to measure how much faster NH3 will be, we have to realize that mass and speed have an inverse relationship.
So instead of doing (2.047)/(3.29) = 6.22
we have to flip the values to get (3.29)/(2.047)= 1.61
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 has the highest in chemical energy (energy stored in chemical bonds)?
Question 2 options:
ADP
ATP
ASP
APP
Answer:
ADP
Explanation:
Fe2O3 the valance number
Answer:
3
Explanation:
Answer:
Valence of Fe-3
Valence of O-2
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.
Near Tatooine's famous Mos Eisley Space port you found a 774.92 mL block of gold. What is the mass in kilograms of this block? HELp me please!! I need to turn this in soon
(1000 g = 1 kg, 2.2 lbs = 1 kg)
Metal Density (g/cm3)
Aluminum 2.7
Zinc 7.1
Copper 9.0
Silver 10.5
Lead 11.4
Gold 19.3
Which object has the greatest K.E.?"
top of a hill
bottom of a hill
middle of a hill
Answer: the answer is A
Explanation:
The answers is A
Can someone please help me with these true or false questions?! Thank you
Answer:
Question 4. True - As when water is boiled the water molecules expand and this exapansion leads more amount of salt that can be dissolved in it.
Question 5. True - As solubility curves show how the solubility of a solute in a given solvent changes as the temperature changes.
Question 6. True - As the solubility of KNO3 increases more than six times between 0 and 50 degrees C.
Question 7. False - As the solubility curve indicates changes in temperature for solubility of substances.
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
CH3CH2C=CH2)
O=O
?
What is the functional group for this compound
Answer:
ketone
Explanation:
please mark me as brainlist
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:
plz mark as brainlist
which of these elements has the smallest atomic radius?
a) F
b) Cl
c) Br
d) i
Answer:
F has the smallest
Explanation:
The trend is that atomic radius increases as you move down a group
Hello, your answer is down below!
A. F
I hope this helps mark brainlist if im correct!
a colourless gas that constitutes about 0.04% of Air by volume
Answer:
The answer is Carbon Dioxide.
Explanation:
Which of the following nuclei would be the most stable? O A. 70 protons, 98 neutrons O B. 70 protons, 87 neutrons O C. 70 protons, 94 neutrons O D. 70 protons, 91 neutrons
The stability of a nucleus is dependent on the neutron - proton ratio. The most stable nucleus is 70 protons, 87 neutrons.
Stability of nucleiA nucleus will be stable if the neutron proton ratio is less than 1.5 but greater than 1. This range is generally called the band of stability.
Now, we know that the most stable nucleus will have a lower neutron - proton ratio and that is the nucleus contaning 70 protons, 87 neutrons.
Learn more about stability: https://brainly.com/question/9904853?
Answer: A. 70 protons, 98 neutrons
Explanation: Got it on the quiz
How many atoms are in 1.00 moles of glucose
Answer:
1 molecule of glucose contains 6 atoms
Explanation:
Answer:
there are 6 atoms :)) I think so