Answer:
The average speed is 553.27[tex]\frac{km}{hour}[/tex]
Explanation:
Speed is the physical magnitude that shows and expresses the variation in position of an object and as a function of time. In other words, the speed relates the distance traveled by an object in the unit of time.
The average speed is the quotient of the space traveled by an object and the time it takes to cover the path:
[tex]speed=\frac{distance}{time}[/tex]
In this case:
distance: 3,043 kmtime: 5.5 hoursSo, replacing in the definition of speed:
[tex]speed=\frac{3,043 km}{5.5 hours}[/tex]
Solving:
speed= 553.27[tex]\frac{km}{hour}[/tex]
The average speed is 553.27[tex]\frac{km}{hour}[/tex]
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:
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.
.............
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
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 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:
H2SO3
What does this stand for?
Answer:
It means Sulfurous Acid
Explanation:
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
is ammonia a compound element or mixture
Answer:
mixtyre
Explanation:
What mass of Cl2 can be produced at STP when 3.3 moles of HCl are reacted with excess MnO2?
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:
Thank chu if you answer
Answer: H
Explanation:
Name four elements that are similar to Iodine.
Answer:
Chlorine, astatine, bromine, and fluorine.
Answer:
Fluorine, Chlorine, Bromine, and Astatine
Explanation:
they are all in group 17 meaning they have similer chemical properties.
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
Round off 35.65 to three significant figures.
help
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:
Help ASAP I will mark brainliest for the correct answer !!!⚡️
Answer:
motion
Explanation:
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.
In which part of a plant cell does photosynthesis occur?
Answer:
leaves,Hope it helps....⋋✿ ⁰ o ⁰ ✿⋌(・o・)
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:
Convert 8.00 x 1020 molecules of H2 to moles.
Answer:
1.33 x 10^-3 mol H2
Explanation:
? mol H2 = 8.00 x 1020^20 molecules H2 x 1 mol H2/6.02 ! 1023 molecules H2 = 1.33 x 10^-3 mol H2
Hope that helps!
8.00 x 10²⁰ molecules of H₂ present in 1.33 x 10⁻³ mole of H₂.
What is mole?Mole is used to define the amount of quantity of any substance and 1 mole equals to the 6.023 × 10²³ elementary entities or atoms in it.
According to the question:
1 mole of H₂ = 6.023 × 10²³ molecules of H₂
or 1 molecules of H₂ = 1 mole of H₂ / 6.023 × 10²³ molecules of H₂
To convert 8.00 x 10²⁰ molecules into mole we calculate as follow:
x mole of H₂ = (8.00 x 10²⁰ molecules x 1 mole of H₂) / 6.023 × 10²³ molecules
x mole = 1.33 x 10⁻³ mole
Hence, 1.33 x 10⁻³ mole of H₂ consist 8.00 x 10²⁰ molecules.
To know more about moles, visit the below link:
https://brainly.com/question/15356425
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
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
why can the charge of the nucleus never be +8
Answer:
it could destroy the nucleus
Explanation:
due too much power going into it
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
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:
3. Find the molar mass of the following compounds:
a. Ammonia NH3
b. Iron (II) Nitrate Fe(NO3)2
Answer: a.4
Explanation:
n=1
h=3
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:
I WILL GIVE BRAINLIEST !!!
Answer:
The purple are molarity and the green are molality
Explanation:
I think dont kill me if thats wrong
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.
What chemical burns red?
Answer:
Strontium chloride
Explanation:
get that W
Answer:
Strontium chloride or strontium nitrate
Explanation: