Answer:
Three ways that I would make most of this situation are going near an area to avoid the things drifting into space. I would seek shelter in a basement. I would also stay indoors.
Earth's atmosphere and its oceans, rivers, and lakes would be one of the first things to drift away into space, we would need to avoid those obstacles by seeking shelter. The first problem is that Earth is rotating at high speed, rather like the way a weight on a string rotates if you spin it around your head. Anyone unfortunate enough to be outside at the time would quickly be lost. People inside buildings would be safer because most buildings are so firmly rooted to the ground that they would stay put even without gravity – at least for a while.
Gravity is the universal force that attracts matter. If there is less gravity, then the objects on the Earth will become weightless.
What is gravity?Gravity or the gravitational force is the fundamental force present in the universe that keeps the matter attracted to each other. It plays a major role in the rotation of the earth around the sun and keeps the atmosphere of the planet balanced.
In case of no gravity, the objects will become weightless and will start to float, and Earth will stop rotating and will collide with the sun. Also, the moon will collide with the earth and the objects will perish in the universe.
Learn more about gravity there:
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Help please...........
Which shape is being shown by the model?
25. Classify the following as element, compound or mixture and explain how do you know?
a) NaCI + H2O
b) C2H4O
c) O2
d) Co
e) CO
f) H2 + O2
g) H2O2
Answer:
A Mixture
B compound
C element
D element
E. Compound
F mixture
G compound
Explanation:
A compound is formed from the chemical reaction between two or more atoms
A Mixture is formed when two or more elements are physically combined
An element is any substance that contains only one kind of an atom
24. Explain what happens at the particle level when a solid melts.
Answer:
When a solid is heated the particles gain energy and start to vibrate faster and faster. ... At this point the solid is melting to form a liquid. The particles in the liquid are the same as in the solid but they have more energy.
Explanation:
sana maka help
An airplane flew 3043 km from Houston to Seattle in 5.5 hours. What was the average speed, in m/s rounded to the nearest hundredth, of the airplane from Houston to Seattle?
An airplane flew 3043 km from Houston to Seattle in 5.5 hours. What was the average speed, in m/s rounded to the nearest hundredth, of the airplane from Houston to Seattle?
The answer is 553
Answer:
553
Explanation:i did this question today and it was right!
Faces:
13. Explain why a solution containing both NH3 and NH4Cl is less basic than a solution
containing only NH3 of the same concentration.
Answer:
In a solution containing ammonia solution and ammonium chloride, ammonia hydrolyses in water to produce hydroxyl ions.
NH3 +H2O → NH4+ + OH-
Ammonium chloride ionises in the solution to produce ammonium ions and chloride ions where the ammonium ions undergo hydrolysis to produce more ammonia solution.
[tex]NH _{4} Cl→NH _{4} {}^{ + } + Cl {}^{ - } [/tex]
what is the kg of the net force is 30 N and the acceleration is 6 m/s 2
Answer:
5kg
Explanation:
Use the law: F=MA
F= force which is newton
M= mass which is kg
A= acceleration which is [tex]m/s^{2}[/tex]
The molecule with only single covalent bonds is _. (C) *
CO2
СО
CI2
ON2
Answer:
CO (carbon monoxide)
Explanation:
Please help due tofay
Answer:
I only know the answer to the second one, The bond that occurs between two metal atoms is a metallic bond
True or False: Air pollution contributes to global warming.
A. True
B. False
Are real or ideal gases used in labs?
How many moles of H20 are needed to produce 1 mole of O2 in the following equation?
2H2O + 2H2 + 102
How does nitrogen-fixing bacteria make nitrogen available to plants and animals?
Answer:
hi thxs for the points now bye
Answer:
Nitrogen-fixing bacteria in the soil and within the root nodules of some plants convert nitrogen gas in the atmosphere to ammonia. Nitrifying bacteria convert ammonia to nitrites or nitrates. Ammonia, nitrites, and nitrates are all fixed nitrogen and can be absorbed by plants.
Explanation:
Hope It Help
5.
Which is the best example of Newton's Second Law of Motion?
Answer:
ok so if I remember correctly then it basically its like if I have a baseball and throw it full force the the ball will go far because the mass is light and the force was great but if I get a bowling ball and do the same with equal force it will go shorter than the base ball because the mass if more than the force I put in
50 points
In the image below, light is displayed as particles called photons. Research to find out what photons are and then explain in your own words why they can be useful for modeling light.
Answer:
A photons is a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.
Explanation:
Light consists of packets of energy (photons) that can only interact with the atoms and molecules of matter by being absorbed or emitted in discrete units. ... Photons carry momentum and energy like particles, but they also have a frequency and a wavelength like a sinusoidal wave. Thanks to photons we know that all quantum particles have both the properties of waves and particles. I hope it helps✌️
Sort the numbers based on the number of significant figures they have.
Drag each tile to the correct location.
One Significant
Figure
Two Significant
Figures
Three Significant
Figures
Four Significant
Figures
Answer:
I think one significant figure??
what metric unit would be most appropriate to use when measuring the length of a paperclip?
A. millimeter
B. kilometer
C. decimeter
D. centimeter
centimetres
Explanation:
centimetres
Answer:
D. Centimeter is used when measuring the length of a paperclip
What category of biological molecules are steroids included in?
Answer:
Lipids
Explanation:
Lipids are a class of macromolecules that are nonpolar and hydrophobic in nature. Major types include fats and oils, waxes, phospholipids, and steroids.
Hope this helps!
Softening of water is the application of
Answer:
Water softening is the process of removing the dissolved calcium and magnesium salts that cause hardness in water
Explanation:
2.0 mole of water at STP would occupy what volume?
a) 22.4
b) 22.7
c) 44.8
d) 45.4
plzzz help me
A gas occupies 5.31 liters at a pressure of 0.55 atm. Determine the volume at standard pressure.
A. 2.92
B. 8.28L
C. 3.54 L
D. 9.65L
Answer:
Option A; V = 2.92 L
Explanation:
If we assume a lot of things, like:
The gas is an ideal gas.
The temperature is constant.
The gas does not interchange mass with the environment.
Then we have the relation:
P*V = n*R*T = constant.
Where:
P = pressure
V = volume
n = number of moles
R = constant of the ideal gas
T = temperature.
We know that when P = 0.55 atm, the volume is 5.31 L
Then:
(0.55 atm)*(5.31 L) = constant
Now, when the gas is at standard pressure ( P = 1 atm)
We still have the relation:
P*V = constant = (0.55 atm)*(5.31 L)
(1 atm)*V = (0.55 atm)*(5.31 L)
Now we only need to solve this for V.
V = (0.55 atm/ 1 atm)*(5.31 L) = 2.92 L
V = 2.92 L
Then the correct option is A.
Calculate the formula weight or molecular for the following:
a. LiCI
b. SO2 (The 2 is in subscript)
Answer:
42.39, 64.06
Explanation:
Formula Weight can be calculated by adding the atomic mass of the elements in the formula.
LiCl
AM for Li is 6.94 amu, AM for Cl is 35.45 amu
[tex](6.94)+(35.45)=42.39[/tex]
SO₂
AM for S is 32.06 amu, AM for O is 16 amu
[tex](32.06)+2(16.00)=64.06[/tex]
i really kinda need some hell right now :)
What do these two changes have in common? Shaking up salad dressing. Adding dish soap to water in a sink
Describe the stages of water cycle
Match the procedural step to its purpose by dragging each step in the written procedure for the Fischer esterification of benzoic acid with methanol in the presence of mineral acid into the appropriate box. Purpose: Flat-bottomed flasks transfer heat in an uneven fashion, and may fracture if heated strongly. Procedure: Purpose: Methanol, which is used as a reagent and solvent, is flammable. Prodedue: Purpose: The unreacted carboxylic acid was neutralized under mild conditions. Procede: Purpose: Water needs to be removed before the liquid ester product is collected. Procedure:
Answer:
Explanation:
The task in this question is to match the right procedure to its purpose. It explains the procedure for the preparation of Fischer Esterification. Fischer Esterification Mechanism should incorporate the ceaseless expulsion of water from the framework or the use of a huge amount of excess alcohol since the general reaction is reversible. Fischer Esterification act as an organic reaction that is utilized to change over carboxylic acids within the sight of excess alcohol and a solid corrosive catalyst (acid) to give an ester as the eventual outcome.
Procedure Purpose
[tex]\text{Flat bottomed flask transfer}\\ \\ \text{ heat in an uneven fashion and } \\ \\ \text{ may fracture if heated strongly}[/tex] [tex]\text{The reagents were added to a} \\ \\ \text{round bottom flask prior to the }\\ \\ \text{reaction being heated under reflux}[/tex]
[tex]\text{Methanol which used as a reagent} \\ \\ \text{and solvent is flammable}[/tex] [tex]\text{The solution of benzoic acid and }\\ \\ \text{methanol was heated on steam bath}[/tex]
[tex]\text{The unreacted carboxylic acid was} \\ \\ \text{neutralized under mild conditions}[/tex] [tex]\text{The reaction mixture was washed} \\ \\ \text{ with sodium bicarbonate solution}[/tex]
[tex]\text{Water needs to be removed before the} \\ \\ \text{ liquid ester product was collected}[/tex] [tex]\text{Magnesium sulphate is added to the} \\ \\ \text{ dichloromethane layer before} \\ \\ \text{ the solvent is distilled off}[/tex]
Match it, I’m not sure which category they go in
Answer:
Endothermic is something that needs heat added into it, while exoteric gives heat off
Explanation:
1. Endo(Melting ice)
2. Endo(heat enters the system)
3. Exothermic(making ice)
4. Endothermic( liquid to gas)
5. Exothermic(campfire)
6. exothermic(gas to a liquid)
7. Exothermic (the flame of a candle)
8. Exothermic (heat leaves the system)
9. I don’t know if photosynthesis is exo or endothermic
According to an energy pyramid model, which trophic level is expected have the largest biomass in land ecosystems ?
Answer:
According to an energy pyramid model, Producer is expected have the largest biomass in land ecosystems
Explanation:
In a trophic level, the producers possess the largest biomass. With the increasing trophic level, the biomass reduces. Hence, the producers at the base have high biomass.
On terrestrial ecosystem, the producers are the plants and trees and hence the greatest biomass exists in the plants and trees.
Hence, in an energy pyramid model, Producer is expected have the largest biomass in land ecosystems
Write the electron configuration for . (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.) Write the electron configuration for . (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.) Write the electron configuration for . (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.) Write the electron configuration for . (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.)
The given question is incomplete. The complete question is:
Write the electron configuration for [tex]Ca^+[/tex] . (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.) Write the electron configuration for [tex]Ca^{2+}[/tex] . (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.) Write the electron configuration for [tex]Se^{2-}[/tex] . (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.) Write the electron configuration for [tex]S^{2-}[/tex]. (Express your answer as a series of orbitals, in order of increasing orbital energy. For example, the electron configuration of Li would be entered as 1s22s1 or [He]2s1.)
Answer:
[tex]Ca^+:19:[Ar]4s^1[/tex]
[tex]Ca^{2+}:18:[Ar][/tex]
[tex]Se^{2-}:32:[Ar]3d^{10}4s^24p^2[/tex]
[tex]S^{2-}:18:[Ar][/tex]
Explanation:
Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.
The electrons are filled according to Afbau's rule in order of increasing energies. The positively charged species are formed by loss of electrons and negatively charged species are formed by gain of electrons.
[tex]Ca:20:[Ar]4s^2[/tex]
[tex]Ca^+:19:[Ar]4s^1[/tex]
[tex]Ca^{2+}:18:[Ar][/tex]
[tex]Se:34:[Ar]3d^{10}4s^24p^4[/tex]
[tex]Se^{2-}:36:[Ar]3d^{10}4s^24p^6[/tex] or [tex]Se^{2-}:36:[Kr][/tex]
[tex]S:16:[Ne]3s^23p^4[/tex]
[tex]S^{2-}:18:[Ne]3s^23p^6[/tex] or [tex]S^{2-}:18:[Ar][/tex]
words that mean the same thing
decrease,
diminish,
dwindle
Answer:
Subside
Explanation:
Answer:
lower, reduce, decline
Explanation: