Calculate the number of sucrose molecules in a 75.0 gram sample.

Answer:

Charles's law is: When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be in direct proportion. So the volume would increase

Answer:

The positive and negative electrons attract leaving a shock and heat travels faster through metal than any other material such as plastic, wood, etc.

Explanation:

Answer:

The electrons in a piece of metal can leave their atoms and move about in the metal as free electrons. ... The hotter the metal, the more kinetic energy these vibrations have. This kinetic energy is transferred from hot parts of the metal to cooler parts by the free electrons.

Explanation:

Answer:

it's easier to look it up

Explanation:

Answer:

37.64 × 10²³ atoms

Explanation:

Given data:

Number of atoms = ?

Mass of sulfur = 200.0 g

Solution:

First of all we will calculate the number of moles of sulfur.

Number of moles = mass/molar mass

Number of moles = 200.0 g/ 32 g/mol

Number of moles = 6.25 mol

Number of atoms:

Avogadro number:

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

6.25 mol × 6.022 × 10²³ atoms / 1mol

37.64 × 10²³ atoms

In the electromagnetic spectrum, the energy and frequency of radiation is given as, E=hυ where frequency is 0.603 ×10¹⁵ hertz.

The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.The relation is given as,E=hυ  where on substitution υ =E/h=4×10[tex]^-19[/tex]/6.626×10[tex]^-34[/tex]=0.603×10¹⁵ hertz

Thus, frequency of radiation is 0.603 ×10¹⁵ hertz.

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Answer:

The general trend is for ionization energy to increase moving from left to right across an element period. Moving left to right across a period, atomic radius decreases, so electrons are more attracted to the (closer) nucleus.

Explanation:

Brainliest plz

Answer:

Ionization energy increases across the period and decreases down the group.

Answer:

When the forest burns we will lose a huge amount of oxygen and animals will lose their home.

Explanation:

Answer:

what I can't understand what you're saying lol

Explanation:

be my friend lol

btw follow me on my another account (sarivigakarthi)...... plz

Answer:

Explanation:

Solution required is .15 M 500 mL sodium fluoride .

molecular weight of sodium fluoride = 42

one mole of sodium fluoride = 42 grams

No of moles contained in the solution of .15M , 500 mL solution

= .15 x 0.5 moles = .075 moles

1 mole = 42 g

.075 moles = .075 x 42 = 3.15 grams .

So mass of sodium fluoride required = 3.15 g .

Answer:

Scientific Notation: 3.45 x 10^5

E Notation: 3.45e5

Explanation:

Answer- im pretty sure it's 2

Answer:

It is Xylem!

Explanation:

 I just now took the test in Eduphoria. Just trust me, and you will get this right. I promise!

It is through circulatory system through which tissues get required oxygen, nutrients and also helps to remove waste products. The plants move water and nutrients through Xylem.

The vascular tissue which carries water and minerals from the soil to the leaves and stems is defined as the xylem. It is composed of some specialized cells called tracheary components which carry water.

There are two types of xylem, they are primary xylem and secondary xylem. The primary xylem is developed during the primary growth of the plant whereas the secondary xylem is formed during the secondary growth of the plant.

The most important function of xylem is to transport water and minerals from the roots of the plant to other parts of the plant. This transportation occurs by passive transport which does not require any external energy.

The materials which flow through the xylem cell is called the xylem sap.

Thus xylem helps plants to move nutrients and water.

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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: keep their original properties

Explanation: a mixture is, by definition, a combination of substances that do not interact, so they do not form new bonds/new compounds. They can usually be separated physically.

Mixtures are combinations of two or more individual components. However they can be separated physically based on their properties. They can form new bonds and compounds. Hence, options B and C are correct.

Mixtures are formed by the combination of two or more substances by physical adherence or chemical bonds. They can be of homogeneous or heterogeneous.

Homogeneous mixtures appears as a single compound such as salt or sugar water they can form in one phase. Whereas, heterogeneous mixtures form two phases and appears to be separate.

There are many analytical tools to separate the components of mixtures such as chromatography, distillation, evaporation etc. The properties of mixtures will be different from that of the individual components. Hence, options B and C are correct.

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Answer:

It’s false

Explanation:

it could be true if the question mentioned alkaline solution

Answer:

True

Explanation:

Phenolphthalein is colorless in the presence of an acid and turns pink in the presence of a base.

Answer:

Mechanical Energy, Thermal Energy, By Feeding Them Food, Light Energy, Electromagnetic Energy, it's right on Edge

Explanation:

Answer:

1. mechanical energy, 2. thermal energy, 3. by feeding them food, 4. light energy 5. electromagnetic energy

Explanation:

got it right on edg ;))

Answer:

Hi - First you need to determine whether there is a metal or no and from there there are certain rules in order to name the compound. Here is a flowchart to try and help.

Answer:

24 g of oxygen

Explanation:

The equations means that four moles of CH3NO2 reacts with three moles of oxygen to yield for moles of carbon dioxide, two moles of nitrogen gas and six moles of water.

The balanced equation of the reaction is;

4CH3NO2 + 3O2 -----> 4CO2 + 2N2 + 6H2O

Molar mass of CH3NO2 = 61 g/mol

61 g of methyl nitrate contains 61 g/ 61 g/mol = 1 mole of CH3NO2

From the balanced reaction equation;

4 moles of CH3NO2 reacts with 3 moles of oxygen

1 mole of moles of CH3NO2  reacts with 1 * 3/4 = 0.75 moles of oxygen gas

0.75 moles of oxygen gas * 32 g/mol = 24 g of oxygen

Answer:

HOLY WOAH

Explanation:

YES

Answer:

0.12 it is 32.1 *C

Explanation:

at the standard temp

The pressure of the gas at 21°C is 1 atm. Then the pressure at the standard temperature i.e., at 25°C or 298 K is 0.14 atm.

According Gay- Lussacs law, the pressure of the gas is directly proportional to the temperature of the gas at constant volume.

hence, P1/T1 = P2/T2.

given,

P1 = 0.12 atm

T1= 21 °C

T2 = 25°C

then,

P2 = P1 T2/T1

     = (0.12 atm ×21 °C)25 °C

     = 0.14 atm

The pressure will increase from 0.12 atm to 0.14 atm when the temperature reaches its standard point.

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Answer:

The answer is 1.834 * 10

Explanation:

Answer:

The interaction between the tectonic and the hydrologic systems causes constant recycling of the materials of the Earth's crust. Rocks are heated, metamorphosed, melted, weathered, sediment is transported, deposited and lithified, then it may be metamorphosed again in yet another cycle.

Explanation:

Answer:

you r correct it is layer a and b

Explanation:

Answer:

12 moles

Explanation:

Answer:

Lithium

Explanation:

As you go from left to right the atomic radius decreases.

As you go from top to bottom the atomic radius.

A. Carbon is farther right in the 2nd period.

B. Lithium is the first one in the 2nd period!

C. Neon is the farthest one on the right in the 2nd period.

D. Potassium is not even in the 2nd period

Answer:

Neucler fission is ​a radioactive decay process. The nucleus of an atom splits into two.