Answer:
The Answer would be D. N2O3
Explanation:
the Chemical bond is a Covalent bond to which the prefixes are Di and tri
how many moles are in 160.4 grams of calcium hydroxide show work
Answer:
2.1648562314118083
Explanation:
1 mole = 74.09268.
We assume you are converting between grams Calcium Hydroxide and mole.
Plus you will need to round up the number for answer
Which expressions are equal to 675? 700 – 25 O 700 – 75 O 600 + 75 O 634 + 31 500 275
Answer:
30
Explanation:
Answer:
The first one, The third one.
700-25, 600+75!
Explanation:
HELP ASAP I will mark brainliest
Answer: The last one I think
Explanation:
Answer:
10623.0
Explanation:
Because 3541 is speed per hour
You need to find 3 hours
so multiply 3541 x 3
3541 x 3 = 10623
10623.0How many particles are present in a 56.9 mole sample of calcium hydroxide?
Answer:
Particles? Calcium hydroxide does not exist as discrete molecules, but as a network solid. The only way you would have separate particles, is if the calcium hydroxide was dissolved in a boatload of water. Ca(OH)2 is not all that soluble in water. Nonetheless, assume a lot of water, enough to dissolve 56.9 moles.
Ca(OH)2 --> Ca2+ + 2OH-
56.9 moles Ca(OH)3 x (3 moles ions / 1 mol Ca(OH)2) = 170.7 mol ions
==================
Percent composition of CuNO3......molar mass = 125.5 g/mol
Cu.... 1 x 63.5 / 125.5 x 100 = 50.6% Cu
N ......1 x 14.0 / 125.5 x 100 = 11.2% N
O .....3 x 16.0 / 125.5 x 100 = 38.2% O
(hope this helps can i plz have brainlist :D hehe)
Explanation:
Thank chu if you answer
Answer: H
Explanation:
What is condensation ?
Answer:
gvapor or gas to liquid
Explanation:
water which collects as droplets on cold surface when humid air is in contact with it
is ammonia a compound element or mixture
Answer:
mixtyre
Explanation:
What is the percent by mass of fluorine in CaF2?
65%
24%
49%
51%
The percentage of fluorine in the given compound is 49%.
The given compound;
CaF₂
The molecular mass of the given compound is calculated as follows;
CaF₂ = (40) + (19 x 2)
= 40 + 38
= 78 g/mol
The mass of fluorine in the given compound = 38 g/mol
The percentage of fluorine in the given compound is calculated as follows;
[tex]= \frac{38}{78} \times 100\%\\\\= 48.7 \%\\\\\approx 49\%[/tex]
Thus, the percentage of fluorine in the given compound is 49%.
Learn more about percentage of element in a compound here: https://brainly.com/question/21044245
What chemical burns red?
Answer:
Strontium chloride
Explanation:
get that W
Answer:
Strontium chloride or strontium nitrate
Explanation:
What is a static charge
Answer:
When you look only at the “before” and “after” of a change, you are considering it as static change. In this perspective, you look at change as a one-dimensional shift. A situation or object was one way, and now it is different because some outside force acted on it to make it change.
Explanation:
Its the def
Determine the number of particles present in 8.6 moles of Aluminum
Answer:
5,18*10^{24}
Explanation:
N=n*Na
N=8.6*6.02*10^{23}
N=5,18*10^{24}
Which type of weathering occurred to form the Malham Pavement
Answer:
carbonation
Explanation:Please dont delete my answer again cause its correct, I had the same question on my test so I know its righ!!!!
Describe the behavior of water molecules during each stage of the water cycle.
Hurry pls this is due by the end of the class period so like 10 MINUTES HELP
Answer:
chupapi muano goagaag djdu
In a sample of double-stranded DNA, 12% of the nitrogenous bases are guanine (G). What percentage of the nitrogenous bases in the sample are cytosine
Answer:
12%
Explanation:
The percentage of Guanine and Cytosine in DNA are equal to each other, as one molecule of guanine bonds with one molecule of cytosine.
If 12% of the nitrogenous bases are guanine, then another 12% will be Cytosine.Conversely, the percentage of adenine and thymine in DNA are equal to each other.
Which nitrogen base sequence is the partner of C-A-T-C-G-A?
C-A-T-C-G-A
G-T-A-G-C-T
T-G-C-T-A-G
G-C-A-T-G-T
Answer:
The answer should be B. G-T-A-G-C-T
A pairs with T and G pairs with C.
Answer:
It's B, GTAGCT.
Explanation:
What happens to the air as a stove heats it? This question is about thermal expansion and convection, not “it gets hot”.
20 points for answering
Answer:
When there is heat at the bottom of this air or water, the air or water molecules in contact with the heat start to move, and the molecules spread apart. The heated air or water becomes less dense. It rises up until it gets to air or water with the same density as it has, and when it gets there, it pushes the air or water that was there out of the way. At the same time, new air or water fills the space that was vacated when the heated molecules rose up. The air or water that gets pushed out of the way falls down. This sets up a circular motion. Air or water is heated at the bottom, travels to the top, cools, gets denser, falls, is heated again and the whole cycle starts again. Convection does not occur in space because there is no gravity. Ovens work by convection. The heating coils at the bottom of the oven heat the air which climbs to the top, cools slightly, and falls down again.
Explanation:
1. Which has the greater blue or indigo light?
Answer:
Indigo wavelength is between
420
and
450
nm.
Blue wavelength is between
450
and
495
nm.
So blue has a greater
λ
than indigo.
Explanation:
Answer:
Indigo has greater frequency.
Have a great day!
about how many days does it take to go from one moon phase to another
Answer:
After one month, the Moon returns to the same location in the sky as the Sun and we see a New Moon again. The demo represents a month as 28 days for simplicity. But the real cycle of phases takes 29.5 days to complete.
what are the group of magnesium and nitrogen ? write the balanced chemical equation for the reaction between two element . what type of chemical reaction is it .
Explanation:
Magnesium - Group 2
Nitrogen - Group 5
The balanced equation for the reaction is given as;
3Mg + N₂ --> Mg₃N₂
Type of reaction;
Synthesis / Direct Combination
Which molecule is Polar
HF
SiBr4
CO2
CH20
Answer:
Polar molecules have a non-zero net dipole moment. Both CO2 and H2O have two polar bonds. However the dipoles in the linear CO2 molecule cancel each other out, meaning that the CO2 molecule is non-polar. The polar bonds in the bent H2O molecule result in a net dipole moment, so H2O is polar.
Explanation:
How many grams of Na 2 SO 4 are required to make 4 moles of BaSO 4 ?
Answer:
46×142.
tell me if it's wrong.
.............
The diagram represents liquid water in a pan on a hot plate. The liquid water is boiling and changing into water vapor. The process of boiling water is considered to be a.
Answer:
Sorry i might be wrong but I believe the answer is evaporation
Explanation:
Its says the diagram So is there a diagram u can show us?
Answer:
physical change, because a new substance is formed
Explanation:
Help ASAP I will mark brainliest for the correct answer !!!⚡️
Answer:
motion
Explanation:
The amount of matter in an object is ___ and a common unit is the ___.
A. mass, mL
B. volume, mL
C. volume, gram
D. mass, gram
Answer:
The answer is D
Explanation:
Mass is the amount of matter in an object and gram is the common unit of measurement of mass
At what elevation would there be the highest atmospheric pressure?
Answer:
The highest sea-level pressure on Earth occurs in Siberia
Explanation:
where the Siberian High often attains a sea-level pressure above 1050 mbar (105 kPa; 31 inHg), with record highs close to 1085 mbar (108.5 kPa; 32.0 inHg).
Which organelle makes useable energy for the cell? What type of fuel did your ship need in order to work?
Answer:
Mitochondria -uses glucose!!
Explanation:
A sample of a compound contains 60.0 g C and 5.05 g H. Its molar mass is 78.12 g/mol. What is the compound’s molecular formula?
Answer:
c6h6
Explanation:
What mass of Cl2 can be produced at STP when 3.3 moles of HCl are reacted with excess MnO2?
Based on percent ionic character the bond between Al & Br would be classified as
A. ionic
B. polar
C. nonpolar
D. metallic
*************PLEASE HELPPPPPPPPP*********
Answer: I think it's A
Explanation:
An initial mixture of nitrogen gas and hydrogen gas is reacted in a rigid container at a certain temperature as follows:
Answer:
The concentration of nitrogen gas and hydrogen gas that reacted initially are 10.0 M and 11.0 M respectively.
Note: The question is incomplete. The complete question is as follows:
An initial mixture of nitrogen gas and hydrogen gas is reacted in a rigid container at a certain temperature as follows:
3H2(g)+N2(g)⇌2NH3(g)
At equilibrium, the concentrations are
[H2] = 5.0 M, [N2] = 8.0 M, and [NH3] = 4.0 M.
What were the concentrations of nitrogen gas and hydrogen gas that were reacted initially?
Explanation:
Given the following data:
Concentration of H2 at equilibrium = 5.0 M
Concentration of N2 at equilibrium = 8.0 M
Concentration of NH3 at equilibrium = 4.0 M
The given equilibrium reaction is,
Initial a b c
Change -3x -x +2x
Equilibrium (a-3x) (b-x) +2x
The value of x is calculated from the equilibrium of NH3
Concentration of NH3 at equilibrium = 4.0 M = 2x
x = 2.0 M
Substituting the value of x above
Initial Concentration of H2:
a - 3 × 2.0 M = 5.0 M
a = 6.0 M + 5 = 11.0 M
Initial Concentration of N2:
b - 2.0 M = 8 M
b = 8.0 M + 2.0 M
b = 10.0 M
Therefore, the concentration of nitrogen gas and hydrogen gas that reacted initially are 10.0 M and 11.0 M respectively.