Water is not an element because it:

Answer:

G wind turbine

Explanation:

they get mechanical energy fron the wind the turns into electrical energy

Answer:

G is correct

Explanation:

just saying

Answer: is a base

Explanation:

The percent by mass of Tin : = 27.08%

Given

25.00 g of the compound

6.77 g of Tin

18.23 g of Bromine

Required

The percent by mass of Tin

Solution

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison, so that compounds have a fixed composition of elements

%mass X = (mass X/mass sample) x 100%

So %mass of Tin :

= (6.77 g : 25 g) x 100%

= 27.08%

Answer:

One mole is the Avogadro's number of particles (atoms, molecules, ions or electrons) in a substance. Converting to moles is fairly easy because the conversion is always the same.

The smallest fundamental of an element is called an atom while two or more atoms join together to produce a molecule. Molecules are the fundamental of any given compound or a substance.

Yes, the method of converting molecules and atoms to moles are similar.

Therefore, the conversion to moles is easy and the same.

Learn more about moles and Avogadro's number here:

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Answer:

Acid

Explanation:

;)

I think it is true because level 4 has 4 sublevels which is s, p, d and f.

Answer:

Not enough sunlight is captured in these areas of the leaves.

Explanation:

Photosynthesis is the process whereby green plants manufacture their food using carbon dioxide and water in the presence of sunlight.

The sunlight is the energy source which drives this chemical change or reaction.

Answer:

HOLY WOAH

Explanation:

YES

Answer:

T2 =21.52°C

Explanation:

Given data:

Specific heat capacity of sample = 1.1 J/g.°C

Mass of sample = 385 g

Initial temperature = 19.5°C

Heat absorbed = 885 J

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = Final temperature - initial temperature

885J = 385 g× 1.1 J/g.°C×(T2 - 19.5°C )

885 J = 423.5 J/°C× (T2 - 19.5°C )

885 J / 423.5 J/°C = (T2 - 19.5°C )

2.02°C = (T2 - 19.5°C )

T2 = 2.02°C + 19.5°C

T2 =21.52°C

Answer:

Explanation:

A ) Solar Radiation

B ) Evaporation

C ) Transpiration

D ) Condensation

E ) Precipitation

F ) Run Off

G ) Infiltration

H ) Groundwater .

Answer:

The oceans atmosphere. AKA Water.

Explanation:

The oceans and the atmosphere are the two large reservoirs of water in the Earth's hydrologic cycle. The two systems are complexly linked to one another and are responsible for Earth's weather and climate. The oceans help to regulate temperature in the lower part of the atmosphere.

Earth's atmosphere get warm up by the temperature absorbed by the gases in the atmosphere. However it can balanced water in earth such as ocean currents and  cooling.

Ocean currents are formed from the pressure difference in ocean level and thus in day time there will be winds from ocean to land which cools the earth's surface.

Surface of the earth warms up by absorption of heat energy from sun. This warming will be higher if there are more greenhouse gases such as carbon dioxide, methane oxides of nitrogen, Sulphur etc.

Greenhouse gases intensely absorbs the temperature from radiation and thus increase the temperature of earth's surface. These gases are mainly evolved to the atmosphere by industries and factories.

Other factor which affects the temperature of  earth surface include wind, ocean level etc. The level of ocean and ocean currents helps to regulate the temperature of the surface  and make it cool.

To find more about  ocean currents, refer the link below:

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#SPJ2

Answer:

The rock cycle describes the processes through which the three main rock types (igneous metamorphic, and sedimentary) transform from one type into another.

Answer:

i believe its 5.2

Explanation:

Answer:

C.)He is incorrect. Dissolving salt in water and evaporation of the water are both physical changes. The reappearance of salt is evidence that the change was reversible by a physical change, so it could not be a chemical change.

Explanation:

From the analogy of the problem presented, we can see that Henry is grossly incorrect. His conclusion from the process of the experiment he carried out is completely wrong.

Physical changes are changes that alters the physical properties of matter particularly the form and state.

Chemical changes leads to the formation of a new kind of matter.

 We can see that since the salt was obtained back after evaporation, no change has occurred to it.

Therefore, evaporation in itself is a physical change process.

Answer:

c on ed

Explanation:

Answer:where are the statements

Explanation:

Answer:

Your average speed was 3.77 Miles per hour

Explanation:

Answer:

False

Explanation:

Heres what its made of:

The core is made of hot, dense plasma (ions and electrons), at a pressure estimated at 265 billion bar (3.84 trillion psi or 26.5 petapascals (PPa)) at the center. Due to fusion, the composition of the solar plasma drops from 68–70% hydrogen by mass at the outer core, to 34% hydrogen at the core/Sun center.

Answer:

Number of protons

Explanation:

There are three sub atomic particles. These are;

- Protons

- Electrons

- Neutrons

Among these three particles, only one determines the identity of the element. This is the Protons. The number of protons which is also called the atomic number determines the identity of an element. For instance, atom with one proton is Hydrogen and n other element can have atomic number of one.

Answer:

1)They have different densities.

2) The molecules are packed differently

Explanation:

Oil and Water have different densities The first reason that water and oil don’t mix is because their molecules are packed differently. The molecules of water are packed very densely. (Would be good to show water molecules packed densely) In one glass of water, there are more molecules than the number of known stars in the universe!

Answer:

diff densities

Explanation:

Answer:

how many grams of NH3 can be prepared from 77.3 grams of N2 and 24.2 grams of H2?

=80.4 g

Explanation:

I think.

Answer:

community

Explanation:

Answer:

The correct answer is population. I took the test and got it right.

Answer:Al3+ indicates an ion of aluminum having a charge of + 3. I.e., since an aluminum atom normally has 13 protons and 13 electrons, this ion has 10 electrons (-10 charge) and 13 protons (+ 13 charge) giving it a charge of + 3 (-10 + 13 = +3).

Explanation:

The ion will have a charge of +3

The components of an atom and their charges are:

The charge of an ion will therefore depend on the number of electrons and protons as they cancel each other out.

The number of excess protons in this ion will be:

= Number of protons - number of electrons

= 13 - 10

= 3

Protons have a positive charge so there will be a charge of +3 as there are 3 excess protons.

In conclusion, this ion will have a charge of +3.

Find out more at https://brainly.com/question/21373859.

Answer:

We could make the surface tension to decrease by removing and causing a disruption to the intermolecular forces(hydrogen bonds).

Explanation:

To explain this answer, we will consider an experiment whereby a paper clip is made to rest at the top surface of water inside a container/beaker.

First of all, the intermolecular forces present in water are also known as hydrogen bonds.

It's relationship with surface tension is that when there is high surface tension in the water, this high tension will allow the paper clip to rest on top of the hydrogen bonds present at the top surface in between the water molecules.

However, the surface tension will decrease when we remove or cause a disruption to the intermolecular forces (hydrogen bonds).

Answer:

A, 4,3,3,4

B, 3,2,2,3

C, 2,6,2,3

D, 1,2,1, 1