Look at Beaker B below. It shows a cell with 10% salt in a beaker filled with 2% salt. Which direction will water flow in?



Question 18 options:

water will flow from beaker to cell


water will from cell to beaker

Answer:

B. abiotic

Explanation:

in biology and ecology, abiotic components or abiotic factors are non living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.

Answer:

The temperature outside the ball has changed

Answer:]

Conduction is the transfer of energy from one molecule to another by direct contact. This transfer occurs when molecules hit against each other, similar to a game of pool where one moving ball strikes another, causing the second to move.

Explanation:

Answer:

1. it has more valence shells

2. its position in the periodic table is lower than Be

3. its bigger in atomic mass

Explanation:

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Answer:

Because in methane atoms of carbon and hydrogen are present in simplest ratio of 1:4 that can not be simplified further in whole number so its Emperical formula is same as molecular formula.

Explanation:

Answer:

thermal conductivity: the rate at which heat is transferred by conduction through a unit cross-section area of a material, when a temperature gradient exits perpendicular to the area

electrical conductivity: the measure of the amount of electrical current a material can carry or it's ability to carry a current

solubility: the ability to be dissolved, especially in water

magnetism: a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects

melting point: the temperature at which a given solid will melt.

boiling point: the temperature at which a liquid boils and turns to vapor

Explanation:

hope this helps :D pls mark brainliest :D

Answer:

To make a cloud, air needs only to be cooled to saturation and beyond. ... Usually the water vapor amounts in air are less that this amount. When this is the case, we describe the air as being unsaturated. If we add more vapor to such air, we could reach the maximum for the temperature

Explanation:

The atmospheric conditions required for the formation of clouds are , air needs only to be cooled to saturation and beyond formation of clouds and precipitation.

Precipitation is defined as any liquid or frozen water which forms in the atmosphere and then gets received on Earth.It is one of the most important steps of the water cycle.

Precipitation takes place in form of clouds when water vapor gets accumulated in clouds and they get bigger and heavy, when the clouds become heavy enough they fall to the land in the form of rain.f a cloud is present at higher altitudes , the water present in the clouds freezes and fall to the ground in form of snow,hail.

Precipitation occurs always in case of fresh water because the sea salt does not evaporate with the water.The different types of precipitation are rain, drizzle,snow,snow hail,etc.

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Answer:

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 8.5 × 10³ × 10

We have the final answer as

Hope this helps you

Answer:

D. 10mm = 1 cm

E. 1000m = 1mm

G. 100 cm = 1 m

H. 1 m = 10 dm

Answer:

Q = 43,000 calories = 180,000 joules = 180 Kilojoules

Explanation:

Heat flow for phase change can be defined as Q = m·ΔHv  

ΔHv = Heat of Vaporization for water = 540 calories/gram = 2259 joules/gram = 2.259 Kilojoules/gram

m = mass of object of interest ( in this problem 80 grams steam 100°C converting to 80 grams of water at 100°C

Q = m·ΔHv = 80g x 540 cals/g =43.200 calories x 4.184 joules/cal = 180,748.8 joules (calculator answer) => 180,000 joules (2 sig. figs.) = 180 Kj

Answer:

1 mole

Explanation:

Given parameters:

Mass of sulfur = 32.066g

Unknown:

Number of moles of sulfur = ?

Solution:

The number of moles of sulfur can be determined using;

  Number of moles  = [tex]\frac{mass}{molar mass}[/tex]  

 Molar mass of sulfur  = 32g/mol

     Number of moles  = [tex]\frac{32.066}{32}[/tex]   = 1 mole

The units for the mass of aluminium sulphide is g/mol.

Aluminium sulphide is a chemical compound with the formula Al2S3 and has the mass of 150.158 g/mol.

A unit is a standard that are used for making comparisons in measurements.

Unit conversions allow for measurements of a property that have been recorded using different units like centimetres to inches.

Hence, the units for the mass of aluminium sulphide is g/mol.

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Answer:

uhm yes he made her pump go off

Explanation:

Answer:

A)

over time, the amount of atmospheric carbon dioxide increases

Explanation:

Answer: a) over time, the amount of atmospheric carbon dioxide increases

Explanation:

The balanced equation :

8Al + 3Fe₃O₄→ 4Al₂O₃ + 9Fe

You just have to look for which element is in bold because the question is not clear

Equalization of chemical reaction equations can be done using variables. Steps in equalizing the reaction equation:

1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c etc.

2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index between reactant and product

3. Select the coefficient of the substance with the most complex chemical formula equal to 1

Reaction

Al + Fe₃O₄→ Al₂O₃ + Fe

give a coefficient

aAl + Fe₃O₄→ bAl₂O₃ + cFe

O, left=4, right=3b⇒3b=4⇒b=4/3

Al, left=a, right=2b⇒a=2b⇒a=2.4/3⇒a=8/3

Fe, left=3, right=c⇒c=3

The equation becomes :

8/3Al + Fe₃O₄→ 4/3Al₂O₃ + 3Fe x3

8Al + 3Fe₃O₄→ 4Al₂O₃ + 9Fe

Answer:

Explanation:

A Chemical Equation tells the story of a chemical reaction. Reactants are the starting substances in the reaction while Products are the new substances that are formed. The large numbers in front of some of the formulas are called Coefficients. These numbers are used to Balance the equation because chemical reactions must obey the Law of Conservation of Matter. The number of atoms of each element on both sides of the equation must be Equal because matter  cannot be Created or Destroyed. When balancing equations, the only numbers that can be changed are Coefficients; remember that Subscripts must never be changed in order to balance an equation.

Q1) 4Al + 3O2 ---> 2Al2O3

Q2) C3H8 + 5O2 -----> 3CO2 + 4H20

Q3) P4 + 3O2 -----> 2P2O3

Q4) 2KNO3 -----> 2KNO2 + O2

Q5) 3O2 + CS2 ------> CO2 + 2SO2

Try the rest out and tell me did you understand it?

Answer:

if the value of volume doubles but the mass stays the same, the value for density will be 1

Answer:

Last one: Cations give away electrons and anions accept those electrons.

Explanation:

Just did it

Answer:

D

Explanation:

"Cations give away electrons and anions accept those electrons."

Answer:

A pure substance that is made up of different elements

Explanation:

Answer:

D. a pure substance that is made up of different elements

Explanation:

Step-by-step explanation:

There are two types of pure substances: elements and compounds.

Elements are made up of only one type of atom. And compounds are pure substances, that are made up of more than one type of element. Like - magnesium oxide. It is a compound of a metal with a non-metal and is held together with ionic bonds.

Answer:

True

Explanation:

Single celled prokaryotic cells use meiosis to reproduce. Its ''TRUE''

A prokaryote is a single-celled organism that lacks a nucleus, and other membrane-bound organelles.

Prokaryotic cells are single-celled microorganisms known to be the earliest on earth.

Prokaryotes include Bacteria and Archaea.

The photosynthetic prokaryotes include cyanobacteria that perform photosynthesis.

A prokaryotic cell consists of a single membrane and therefore, all the reactions occur within the cytoplasm.

Prokaryotes reproduce through a cell division process called binary fission.

Like mitosis in eukaryotes, this process involves copying the chromosome and separating one cell into two.

Hence, Single celled prokaryotic cells use meiosis to reproduce is a ''TRUE'' statement.

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Answer:

Hydrogen - - helium..

...

Answer:

Conduction is one of the three main ways that heat energy moves from place to place. The other two ways heat moves around are radiation and convection. Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules

Explanation:

Answer:

Water. Chemical Formula: H2O.

Table Salt. Chemical Formula: NaCl.

Sucrose (Sugar) Chemical Formula: C12H22O11.

Soaps. Chemical Formula: RCOO–Na, Where R is a long chain of carbon atoms ranging from 16-18 in number.

Toothpaste. Chemical Formula: CaCO3 or NaF.

Explanation:

Explanation:

When methane is burnt with oxygen,like all hydrocarbons,it produces CO2 and H20.

CO2 is a greenhouse gas which means it leads to global warming.

Answer:

Carbon dioxide (CO2) is a product of the reaction of methane with oxygen.

Explanation:

Carbon dioxide is a known cause of climate change, which has a negative effect on the environment.