Answer:
3.4 mol Li2SO4
Explanation:
6.8 mol LiOH × (1 mol Li2SO4/2 mol LiOH)
= 3.4 mol Li2SO4
Answer:
3.4 mol Li2SO4
Explanation:
6.8 mol LiOH × (1 mol Li2SO4/2 mol LiOH) = 3.4 mol Li2SO4
Derive Boyle's law.
i'll mark the brainliest for the answer
Answer:
According to Boyle's Law, an inverse relationship exists between pressure and volume. ... The relationship for Boyle's Law can be expressed as follows: P1V1 = P2V2, where P1 and V1 are the initial pressure and volume values, and P2 and V2 are the values of the pressure and volume of the gas after change.
Hope that helps! :)
-Aphrodite
Explanation:
I NEED NOW PLEASE HELP How many grams of KF are need in order to produce 2.0 mol CaF?
explain how the alpha particle scattering experiment led to a change in the model of the atom from the plum pudding model?
Answer:
So originally, the plum pudding model by J.J Thomson is electrons (negatively charged) held in place by a proton (positively charged) cloud.
Alpha particles are positively charged made of 2 protons + 2 neutrons.
Rutherford's experiment where they beamed those positively charged alpha particles demonstrated that an atom was not a uniform cloud, instead the alpha particles that were deflected was the positively charged nucleus. The alpha particles would also pass through if it didn't hit the nucleus, or be slightly attracted to the negative charge on the electrons. But the overall idea is that Rutherford's experiment changed what the structure of the atom was by discovering that they have a positively charged nucleus due to the deflection of positively charged alpha particles.
A mass of 68.45 g of nickel (II) sulfate hydrate, NiSO4∙ nH2O, loses 28.40 g upon dehydration. What is the hydration number of this compound? (Find n.)
Answer:
n=4
Explanation:
n= (154.75×28.40)÷(68.45×18)
n=3.5
n=4(approximately)
Periodic table trivia crossword puzzle
Noble gases all share?
Answer:
properties
Explanation:
i think it is properties because it fits the space
BRO THIS IS THE 3RD TIME IVE PUT THIS UP CAN SOMEONE HELP NO LINKS OR TROLLS
Answer:
1) AgNO3 (aq) + KCl (aq) -> AgCl (s) + KNO3 (aq)
Ag+ (aq) + NO3- (aq) + K+ (aq) + Cl- (aq) -> AgCl (s) + K+
(aq) + Cl- (aq)
Ag+ (aq) + Cl- (aq) -> AgCl (s)
2) 2NaCl (aq) + K2CO3 (aq) -> Na2CO3 (aq) + 2KCl (aq)
3) Fe(NO3)3 (aq) + 3NaOH (aq) -> Fe(OH)3 (s) + 3NaNO3
(aq)
Fe³+ (aq) + 3NO3- (aq) + 3Na+ (aq) + 3OH- (aq) ->
Fe(OH)3 (s) + 3Na+ (aq) + 3NO3- (aq)
Fe³+ (aq) + 3OH- (aq) -> Fe(OH)3 (s)
4) BaBr2 (aq) + Na2SO4 (aq) -> BaSO4 (s) + 2NaBr (aq)
Ba²+ (aq) + 2Br- (aq) + 2Na+ (aq) + SO4²- (aq) ->
BaSO4 (s) + 2Na+ (aq) + 2Br- (aq)
Ba²+ (aq) + SO4²- (aq) -> BaSO4 (s)
Explanation:
Sorry, I couldn't make the charges superscript. Don't know how.
On #2, no reaction occurs; everything stays aqueous.
How many times does a tire with a diameter of 16 in. rotate when it travels a mile? **Tip: As there are 63,360 inches in each mile, 63,360 divided by circumference = number of full rotations. Round up to the next whole number. *
631 rotations
1980 rotations
1260 rotations
100 rotations
Answer:
1260 rotations
Explanation:
From the question given above, the following data were obtained:
Diameter of tyre = 16 in
Number of rotation =?
Next, we shall determine the radius of the tyre. This can be obtained as follow:
Diameter (d) of tyre = 16 in
Radius (r) of tyre =?
r = d / 2
r = 16/2
Radius (r) = 8 in
Next, we shall determine the circumference of the tyre. This can be obtained as follow:
Radius (r) of tyre = 8 in
Pi (π) = 22/7
Circumference (C) of tyre =?
C = 2πr
C = 2 × 22/7 × 8
C = 50.29 m
Finally, we shall determine the number of rotation. This can be obtained as follow:
Circumference (C) of tyre = 50.29 m
Number of rotation (n) =?
n = 63360 / C
n = 63360 / 50.29
n = 1260 rotations
Therefore, the tyre will make 1260 rotations
Hey I know this looks easy but
Can somebody plz help tell me where to put the organisms in the correct group (only if u know which ones) thanks :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD!
Answer:
Benthos: crabs, starfish, lobsters, stingrays,, algae
Plankton: diatom, tubeworms
Nekton: whales, sharks, turtles,
Explanation:
PLS HELP NO LINKS PLS WILL MARK BRAINLIEST IF CORRECT
What kinds of observations can be made with atomic probe microscopes?
a. Materials can be seen in micrometers which are millionths of a meter on the scale of blood cells.
b. Materials can be seen in picometers which are trillionths of a meter or the size atoms.
c. Materials can be seen in nanometers which are billionth of a meter, slightly larger than atoms.
d. Materials can be seen in millimeters which are thousandths of a meter or the size sand particles.
Answer:
The Answer would be B (Materials can be seen in picometers which are trillionths of a meter or the size atoms.
Explanation:
Which gas variable has to do with the amount of collisions of gas particles has?
(I think it’s temperature but I’m not sure)
Pressure
Temperature
Amount
Volume
PLEASE HELP!!!! What is the molarity of a solution that contains 42.9g of calcium chloride in a 45.0L solution?
CH3CH2OH can interact with other like molecules through:
a) dispersion forces
b) dispersion forces and dipole dipole interaction
c) dispersion forces, dipole dipole interaction, and hydrogen bonds
Answer:
B
Explanation:
All molecules have dispersion forces, and this molecule is polar, so there is dipole dipole interaction, but no where in the molecule is hydrogen bonded to nitrogen, oxygen, or fluorine. This means that there is no hydrogen bonds.
WILL DO ANY THING TO GET A HELPWhich type of wind occurs over a small area?
Question 3 options:
polar easterlies
the Coriolis effect
trade winds
sea breezes
Answer: Sea breezes
Explanation: Took the test
PLEASE HELP ILL GIVE BRAINLIST!!!
How does the energy of the different waves of the spectrum vary with frequency? With wavelength?
Answer:
The greater the frequency means the more energy transferred.
The greater the wavelength means the less energy transferred
HURRY!!
I NEEE HELP!!!
Answer:
NEEE
Explanation:
How can the respiratory system become damaged?
Answer:
Botched surgery, inhaling harmful toxins and smoking.
Explanation:
Smoking is a death wish.
Explain the role of a primary consumer and a secondary consumer in a food web.
Answer:
Explanation:
Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, or organisms that only eat autotrophic plants.
Carnivores only eat other animals, and omnivores eat both plant and animal matter.
Question 1 (2 points)
2.5 L of a gas is heated from 200 K to 300 K. What is the final volume of the gas?
Answer:
3.75 L
Explanation:
We can solve this problem by using Charles' law, which states:
V₁T₂=V₂T₁Where subscript 1 stands for initial volume and temperature and subscript 2 for final volume and temperature, meaning that in this case:
V₁ = 2.5 LT₂ = 300 KV₂ = ?T₁ = 200 KWe input the data:
2.5 L * 300 K = V₂ * 200 KAnd solve for V₂:
V₂ = 3.75 L19. I accidentally mixed bleach and ammonia when cleaning one day. It released 55 liters of deadly chlorine (CI) gas. How many grams of
chlorine gas is this?
The image shows a diagram of a chloroplast, which captures light energy from thesun. In what type of cell would you expect to find these
organelles?
Answer: a plant cell
Explanation:
can anyone give me just the answers??
Answer:
11. Redox
12. Acid/Base
13. Precipitation
14. Combustion
15. Precipitation
how did the idea of triads influence the development of the periodic table , even though more than three elements share similar properties ?
A. It established element families
B. It established element groups numbered 1-18
C. It gave rise to the idea of the law of octave
D. It gave rise to the idea of periodicity
Johann Döbereiner identified triads of chemically related elements in 1829 and demonstrated how the properties of the middle element could be anticipated from the properties of the other two. Examples of such triads are lithium, sodium, and potassium.
How did the idea of triads influence the development of the periodic table?
Johann Dobereiner (1780–1849), a German scientist, organized diverse trios of three elements into triads in 1829.Lithium, sodium, and potassium made up one such trio.Triads were based on both chemical and physical characteristics. All known elements could fit on Mendeleev's periodic table, and it also made precise predictions about the presence and characteristics of yet-to-be-discovered elements. Mendeleev organized the elements in his first periodic table according to their masses and other chemical characteristics.Atoms' fundamental chemical structure was unknown at the time.Mendeleev increased the size of his periodic table to include every element at the time. The law of triads was discovered by German scientist Johann Döbereiner, who wrote: "If the elements with similar chemical properties are grouped in the groups of three, the atomic weight of the middle element will be deemed almost equivalent to the arithmetic mean of the two-terminal element's total." The arithmetic mean of the atomic masses of the first and third elements must be about equal to the atomic mass of the second element in order to form a Dobereiner trio.The atomic mass of nitrogen is equal to the arithmetic mean of the atomic masses of carbon and oxygen in this situation, which is 14.They so make up Dobereiner's trio.To learn more about periodic table refer
https://brainly.com/question/14032417
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water, soil, temperature, space
Answer:
wdym??
Explanation:
Answer:
wdym by water, soil, temperature, space?
What is TRUE about the law of conservation of energy?
A. heat is lost during a chemical reaction
B. heat is gained during a chemical reaction
C. heat is neither gained or lost during a chemical reaction
D. heat is unable to be measured during a chemical reaction
Answer:c
Explanation:
How much pressure (in atm) would be found in 5.8 moles of an ideal gas at 358 K and volume of 3.9 L?
Answer:
pressure=force / volume
5.8÷3.9
=1.5 ml
Where can most stars
be found in the H-R
diagram?
A. Main sequence
B. Supergiants
C. White Dwarfs
D. Red Giants
Answer:
main sequence
Explanation:
The main sequence is a band of stars which includes most of them like our sun
How does the brain receive information from the light entering the eye?
Answer: Through the retina <3 ^^
(took the quizz c:)
Explanation: Hope this helps ml!
. Water is one of our most important resources. Only about 1% of the Earth's water is for human needs. Name four ways you can help conserve water. This is for science btw...
Answer:please see explanation for answers
Explanation:
Water conservation is an approach geared towards controlling how water is used. Because of the ever growing population, which weighs so much on water available to mankind,Over negligence and abuse of our water resources have been a great point of concern, that is why the need for the knowledge of water conservation is preached.
Now, some of the ways we can conserve water include
1. Putting off taps while lathering the hands with soap
2.use of irrigation system to water crops and plants
3.. while brushing, make sure to turn off the tap or faucet
4. use a shower rather than a bath
3/7 of a sum is Rs.1800. Find the sum
Answer:
the sum is Rs 4,200
Explanation:
Given that
3 by 7 of the sum is $1,800
We need to find out the sum
So,
Here we assume the sum be x
So the following equation should be made
3 ÷ 7 × x = 1800
3x = 1800 × 7
x = (1800 × 7) ÷ 3
= Rs 4,200
Hence, the sum is Rs 4,200
The same would be considered and relevant
What do the particles of water look like at A and B? A. B. C. D.
Answer:
Explanation:
Each particle, or corpuscle, of water is a regular icosahedron (20-sided geometrical solid). This is what water particles look like, according to Plato's description in the Timaeus. In the center is the water-particle Plato describes at 55b, with 6 scalene triangles making up each equilateral face of the icosahedron