Answer:
An object with a high mass close to the Earth could be sent out into a collision course with the asteroid, knocking it off course. When the asteroid is still far from the Earth, a means of deflecting the asteroid is to directly alter its momentum by colliding a spacecraft with the asteroid.
Hope it helps!!
Answer:
1. deflect it 2. grab it with a claw 3. blast it to smithereens
Explanation:
What conditions prevail (are mostly found) in the rain shadow area?
-dinosaurs and rocks conditions
-dry and desert conditions
-cold and foggy conditions
-wet and rainy conditions
For the balanced equation shown below, how many moles of N2 will react with 0.3034 moles of Mg?
3 Mg + N2 Mg3N2
Round answer to 4 sig-figs.
Answer:
0.1011 moles of N₂
Explanation:
This is the reaction:
3 Mg + N₂ → Mg₃N₂
3 moles of magnesium can react to 1 mol of nitrogen in order to produce 1 mol of magnesium nitride.
We can solve this by a rule of three:
3 mol of Mg need 1 mol of N₂ for the reaction
Then, 0.3034 moles of Mg may react to (0.3034 . 1) / 3 = 0.1011 moles of nitrogen.
The stoichiometry is 3:1
Step 4: Model the energy change in the reaction.
a) Create an energy graph that illustrates the energy change in the reaction.
b) Construct your graph on a blank sheet of paper. Be sure to label the axes, provide a title, and
identify the reactants and products on the graph.
Answer:
Sorry if this is hard to see, this was the best I could do, but the top line says C3H8 + O2, and the bottom line says CO2 + H20, with the heat input being -2043.96 kJ/mol
Explanation:
This is correct for me
Which indicates how evidence of climate change supports the theory of continental drift?
1. coal fields in several continents
2. volcano formation
3. glacial evidence
4. folded mountains in Africa and South America
Answer:
glacial evidence found in South America
Answer: C. Glacial evidence
I NEED HELP ASAP!! DO IN A HOUR!! POEASE HELP!!A scientist views different objects using a light microscope. Which features
would the scientist MOST LIKELY see for samples from multicellular organisms?
Select the three correct answers.
small organelle features
cells organized into tissues
large cell size
different types of cells
smaller number of cells
The features that should the scientist most likely see for the samples from the multicellular organisms should contain different types of cells, Small organelle features, and a smaller number of cells.
What are multicellular organisms?It is considered as the tissue, organ or organism that should be made up of various cells that treated as multicellular. The example involved the animals, plants, and fungi also they have the specialization of distinct cells for many functions.
Therefore, The features that should the scientist most likely see for the samples from the multicellular organisms should contain different types of cells, Small organelle features, and a smaller number of cells.
Learn more about cell here: https://brainly.com/question/8725051
In a chemical reaction, the reactants (beginning elements or compounds) but have the same number and type of atoms as the products (the new substance created). This is an example of...
a) law of conservation of mass
b) law of conservation of energy
c) covalent bonding
d) product synthesis
Answer:The law of conservation of matter says that matter cannot be created or destroyed. In chemical equations, the number of atoms of each element in the reactants must be the same as the number of atoms of each element in the products. ... There are two oxygen atoms in the reactants and two atoms of oxygen in the product.
Explanation:
How many moles of salt (NaCl) are in a teaspoon of salt that contains 5.00 g?
Answer:
1
Explanation:
M r ( NaCl ) = A r ( Na ) + A r ( Cl ) = 23 + 35,5 = 58,5
So, 1 mol of NaCl has a mass of 58,5 g.
Moles of NaCl = 58,5 g NaCl
times (x)
1 mol NaCl = 58,5 g NaCl = 1,00 mol NaCl
According to the mole concept, there are 0.140 moles in teaspoon of salt that contains 5 g.
What is a mole?Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.
It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.
It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole . In case of molecules, where molar mass in grams present in one mole of atoms is its atomic mass.Number of moles is calculated as, mass/molar mass.
In this case number of moles is calculated as, 5/35.5=0.140 moles.
Thus, there are 0.140 moles in 5 g teaspoon of salt.
Learn more about mole,here:
https://brainly.com/question/21323029
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In the compound H2O electrons are A.gained B.lost C.transferred or D.shared?
What is the molarity of 3 mole of hydrochloride acid in 3 L of water ?
Answer:
1
Explanation:
Formula of molarity is
[tex]M=\frac{n}{v}[/tex]
M= molarity
n= no of moles
v= volume in liters (if mL then you have to convert it to L)
Why
take oxygen cylinder?
Nitrogen gas is filled inside the electric bulb. Why?
Answer:
Nitrogen gas is filled inside the electric bulb because it doesn't react with the hot filament. Then, it will carry heat away form the filament to cool it.
please helppppppppp. ik I'm no smart dont hate
In part A, when you added water to the sodium acetate in the flask, some of the chemical dissolved into the water. Would you call this solution unsaturated, saturated, or supersaturated? Give reasons for your answer.
Answer: The solution is a SATURATED solution.
Explanation:
Although most substances are soluble in water, some are more soluble than others,that is , their solubilities differ. SOLUBILITY is a means of comparing the extent to which different solutes can dissolve in a particular solvent at a definite temperature.
From the question above, when water was added to the sodium acetate in the flask, SOME of the chemical dissolved into the water, meaning that some remained undissolved. This is because a given volume of water can only dissolve a certain amount of chemical in it at room temperature. If more chemical is added to such a solution, the chemical will remain undissolved. Such a chemical solution is said to be a SATURATED SOLUTION.
A saturated solution of a solute at a particular temperature is on which contains as much solute as it can dissolve at that temperature in the presence of undissolved solute particles.
Unsaturated solution is a type of solution that dissolves all its solutes with no presence of undissolved solute.
Supersaturated solution is one which contains more of the solute than it can normally hold at that temperature. It is an unstable solution which crystallizes out when disturbed.
Answer:
Hello, Im Mack. Hope you are doing well :)
The Correct answer to your Question is: Answer: solution is a SATURATED solution.
Explanation:
-Although most substances are soluble in water, some are more soluble than others,that is , their solubilities differ. SOLUBILITY is a means of comparing the extent to which different solutes can dissolve in a particular solvent at a definite temperature.
-From the question above, when water was added to the sodium acetate in the flask, SOME of the chemical dissolved into the water, meaning that some remained undissolved. This is because a given volume of water can only dissolve a certain amount of chemical in it at room temperature. If more chemical is added to such a solution, the chemical will remain undissolved. Such a chemical solution is said to be a SATURATED SOLUTION.
_________________________________________________________
-A saturated solution of a solute at a particular temperature is on which contains as much solute as it can dissolve at that temperature in the presence of undissolved solute particles.
---Unsaturated solution is a type of solution that dissolves all its solutes with no presence of undissolved solute--
---Supersaturated solution is one which contains more of the solute than it can normally hold at that temperature. It is an unstable solution which crystallizes out when disturbed---
hope this helped you out :)
Comment if you need more help, and I'll reply asap.
Have a great day my Friend, and best of luck to your studies :)
How many moles are in 5.30 X 1023 molecules of H2O?
Answer:
0.880 (0.88039867109 to be exact)
Explanation:
To convert from molecules to moles, simply divide by Avogadro's number which is 6.02 x 10^23
So, 5.30x10^23/6.02x10^23 = 0.880
1
What is the mass of 0.328 mol of CO2?
Answer:
use this conversation units to help you hope it helpsthe wave pictured represents a sound wave. which label along the wave repeesents a sound with the Lowest energy
Your car burns gasoline as you drive up a large mountain. What energy
transformation is the car performing?
O A. Chemical energy to kinetic energy and gravitational potential
energy
B. Kinetic energy to chemical energy and light energy
C. Chemical energy to kinetic energy and nuclear energy
D. Gravitational potential energy to sound energy and nuclear energy
SUBNI
Answer:
chemical energy to kinetic energy
Explanation:
Answer:
A. Chemical energy to kinetic energy and gravitational potential
energy
Explanation:
What are resistors? please help
Answer:Resistor Basics
Resistors are electronic components which have a specific, never-changing electrical resistance. The resistor's resistance limits the flow of electrons through a circuit.
They are passive components, meaning they only consume power (and can't generate it). Resistors are usually added to circuits where they complement active components like op-amps, microcontrollers, and other integrated circuits. Commonly resistors are used to limit current, divide voltages, and pull-up I/O lines.
Resistor units
The electrical resistance of a resistor is measured in ohms. The symbol for an ohm is the greek capital-omega: Ω. The (somewhat roundabout) definition of 1Ω is the resistance between two points where 1 volt (1V) of applied potential energy will push 1 ampere (1A) of current.
As SI units go, larger or smaller values of ohms can be matched with a prefix like kilo-, mega-, or giga-, to make large values easier to read. It's very common to see resistors in the kilohm (kΩ) and megaohm (MΩ) range (much less common to see miliohm (mΩ) resistors). For example, a 4,700Ω resistor is equivalent to a 4.7kΩ resistor, and a 5,600,000Ω resistor can be written as 5,600kΩ or (more commonly as) 5.6MΩ.
Schematic symbol
All resistors have two terminals, one connection on each end of the resistor. When modeled on a schematic, a resistor will show up as one of these two symbols:
Resistor schematic symbols
Two common resistor schematic symbols. R1 is an American-style 1kΩ resistor, and R2 is an international-style 47kΩ resistor.
The terminals of the resistor are each of the lines extending from the squiggle (or rectangle). Those are what connect to the rest of the circuit.
The resistor circuit symbols are usually enhanced with both a resistance value and a name. The value, displayed in ohms, is obviously critical for both evaluating and actually constructing the circuit. The name of the resistor is usually an R preceding a number. Each resistor in a circuit should have a unique name/number. For example, here's a few resistors in action on a 555 timer circuit:
Answer: resistor is
Explanation:
A resistor controls the flow of the electrical current within a circuit. Resistors are made from materials like copper or carbon, which make it difficult for the electrical charges to flow through a circuit. The most common type of resistor is a carbon resistor, which is a general purpose resistor, best suited for lower-powered circuits.
An equilibrium mixture of N2, O2and NO gases at 1500K is determined to consist of 6.4 x 10-3Mof N2, 1.7 x 10-3M O2, and 1.1 x 10-5M NO. Write the equilibrium expression and solve for the equilibrium constant (Keq) for the systemat this temperature?
Answer
Explanation:O2 = 1.7×10-3M;
N2 = 6.4×10-3M;
NO = 1.1 10-5M.
The structure of the Earth is divided into four major components: the crust, the mantle, the outer core, and the inner core.
A. True
B. False
help? perhaps? some?
Specify the steps included in the sedimentary rock formation
Answer:
Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.
Two Places were freshwater is found on earth
Answer:
Explanation:
Over 68 percent of the fresh water on Earth is found in icecaps and glaciers, and just over 30 percent is found in ground water. Only about 0.3 percent of our fresh water is found in the surface water of lakes, rivers, and swamps. Of all the water on Earth, more than 99 percent of Earth's water is unusable by humans and many other living things!
PLEASE HELP ME!!!!!!
1.) List the actual volume of titrant needed to produce a color change for Sample A and Sample B. Answer:
Volume of titrant needed to produce a color change for Sample A: ___ ml Volume of titrant needed to produce a color change for Sample B: ___ ml
2.) There are many aspects to the technique known as titration that are extremely important if results are to be accurate. In a traditional or authentic laboratory setting, these techniques are important and sometimes delicate. List two of the techniques used in this lab that provided you will the most accurate possible results. Describe why these techniques are important and how ignoring the techniques would affect the lab.
Answer:
Technique #1: …
Why technique is important: …
Technique #2: …
Why technique #2 is important: …
3.) The titration procedure you have just performed is similar to what is carried out by water-quality workers throughout the world. They use a kit to perform titration on location instead of in a laboratory. In real-life situations, workers collect water samples in a lake or stream. In lakes and streams calcium carbonate (CaCO3) causes alkalinity. Calcium carbonate acts as a buffer, a substance that serves to resist small changes in acidity or alkalinity in a solution. When acid rain enters lake water, it can be neutralized by the bases present and thus the lake does not become too acidic. Since the key ion is the hydroxide ion, the nature of the location doesn’t matter in this case. All over the world, right now, pollution workers are measuring calcium carbonate in lakes and streams.
If a worker studied two lakes and Lake X had a greater ppm (concentration in parts per million) of calcium carbonate than Lake Z, and both lakes are the exact same size, which of the two lakes would be able to withstand a greater amount of rain that is acidic? Explain your answer.
Answer:
Lake ___ would be able to withstand a greater amount of acid rain.
Explanation: …
Answer:
the first answer will be for A. 35 and second B. 47 then second no t dude
PLEASE HELP!
1) What type of reaction is this?
Zn + 2HCl -----> ZnCl + H
2) Balance the equation (Hint, you need to balance the left side with the right side)
1) single replacement
2) Zn + 2HCl -----> ZnCl + H
equation is already balanced
what is the smallest halogen atom
Answer:
Hey mate...
Explanation:
This is ur answer.....
This is because fluorine atoms are the smallest of the halogens—the atoms are bonded close together, which leads to repulsion between free electrons in the two fluorine atoms.
Hope it helps you,
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what would Sodium+oxygen -> sodium oxide look like in chemical formula?
4 Na + O2 → 2 Na2O
I think that's it
If we want to store the energy produced from a wind turbine, where do we store the energy?
Please help
I will give you Brainliest
answer:
it is usually stored in large above-ground tanks or in underground caverns
good luck :)
hopefully, this helps
have a great day !!
**next time you should try goo-gling it, it'll save you the points :)**
what is the radius of a circle i
s
Which of the following is a part of the kinetic-molecular theory?
(PLEASE HELP)
Your answer:
Most of the volume of a gas is occupied by gas particles.
The particles of a gas are in constant, random motion.
The average kinetic energy of a gas is dependent upon the identity of the gas.
Gases have indefinite shape and indefinite volume.
Attractive forces between gas molecules must be accounted for with a gas law calculation.
Answer:
2)The particles in a liquid are moving past one another constantly.
3)The particles in gas move freely in all directions.
4)The particles in a solid vibrate in a fixed position.
6)The particles in a gas have few attractions between them.
7)The particles in all states of matter are always moving.
Explanation:
Emma wrote, 'My investigation was good' , as her conclusion.
Philip said this was not a scientific conclusion.
Explain why Emma's conclusion is not scientific
Answer:
Emma's conclusion is not scientific. She is stating an opinion because she thinks her investigation was good which is not necessarily scientific.
