Five important things about Fluorine>

Answer:

A. stored energy

Explanation:

potential energy is stored energy.

kinetic energy is the energy of motion

Answer:

C D

Explanation:

NOAA airplanes continuously transmit measurements of pressure, humidity, temperature, and wind direction and speed as they fall toward the sea, providing a detailed look at the structure of the storm and its intensity.

Answer:

3.213J/mol

Explanation:

first specific heat capacity of water = 4200J/Kg K

Q=mass×temperature difference×specific heat capacity

Q=1.53×(24.3-20)×4200

Q=25.704 J

heat of solution= quantity of heat ÷ amount of substance

heat of solution= 25.704÷8

heat of solution= 3.213J/mol

Based on Hess law of constant heat summation, the enthalpy of the combustion of C2H4 can be calculated from the heat of formation values of the products CO2 and H2O.

A combustion reaction is a reaction between a substance and oxygen in which light and large amounts of heat is given off.

The amount of heat evolved when one mole of that substance reacts completely with oxygen is known as the enthalpy of combustion of that substance.

The equation of the combustion of C2H4 is given below:

The enthalpy of the combustion of C2H4 can be calculated from the heat of formation of the products CO2 and H2O based on Hess law.

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Answer:

sedimentary rock layer bounded by two stratification planes

Answer: 1.34 M

Explanation:

Answer:

The enthalpy change of the reaction comes out to be -890 Kj Explanation:To calculate the enthalpy of the reaction divided in multiple steps, we use Hess's law. This law states that the heat absorbed or evolved in a given chemical equation remains same whether the process occurs in one step or several steps.To apply this law, the enthalpy of the chemical equation is treated as ordinary algebraic expression and it can be added or subtracted to form the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes that occur during intermediate reactions.

Explanation:

Answer:

A few definitions:

1. A river delta is a land-form created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or another river that cannot carry away the supplied sediment.

2. The fourth letter of the Greek alphabet ( Δ, δ ), transliterated as ‘d’.

3. a code word representing the letter D, used in radio communication, mostly in the military

4. variation of a variable or function.

5. a finite increment.

This is not a plagiarized passage this is my knowledge and research.

Answer:

Since I was not present in your lesson, I can only guess your vocabulary words. I am guessing consistency though.

Answer:

Yes, but it would a tremendous amount of time to do so

Explanation:

You could just spray a ton of hydrogen in the atmosphere and turn the oxygen to water

Answer:

see below

Explanation:

All of them are considered reactants because a reactant is a a substance that takes part in and undergoes change during a reaction.

Answer:

CH3COOH

Explanation:

Answer:

Plants using glucose to make ATP molecules during the process of photosynthesis which results in the plant releasing oxygen.

This is cellular respiration. ↑

Answer:

eyes hair skin

Explanation:

eyes you can get from parents skin and hair

Answer:

H2C3H2O4 + 2KOH → K2C3H2O4 + 2H2O

Answer:

The three laws of Chemical Reaction are .The law of constant proportions. The law of multiple proportions. The law of reciprocal proportions.

A chemical compound is always found to be made up of the same elements combined together in the same fixed proportion by mass.

potassium and chlorine gas ---> chloride.

Hope this helps, have a good day.✌

Answer:

RNA always folds into a single helix while DNA always folds into a double helix.

I hope this helps you

:)

[tex]Important[/tex] [tex]Procedures[/tex]

▬▬▬▬▬▬▬▬▬

Wear these items...

∴ Hope this helps! Please give thanks. ∴

To prevent inhaling spill vapors. Avoid attempting to clean up a spill if it is in an area that isn't well-ventilated. Send out a call for help to respond to and clean up the spill.

Additionally, more severe side effects include breathing problems, coughing, wheezing, a faint feeling, or weakness that may result from significant chemical exposure. The most dangerous substances can cause immediate collapse, convulsions, and possibly even death.

Wearing personal protection equipment (often known as "PPE") helps reduce exposure to a number of risks. Gloves, foot, and eye protection, protected hearing equipment (earplugs, muffs), hard helmets, respirators, and complete body suits are a few examples of PPE.

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Answer:

In areas without excessive light pollution, a band of light can be seen spanning the night sky ... - did not match any news results.

Suggestions:

Explanation:

Answer:

stars in the milky way

Explanation:

The band of light that can be seen spanning the night sky comes from stars in the Milky Way Galaxy. The Milky Way Galaxy is a spiral galaxy that contains hundreds of billions of stars.

Answer:

12-18 65mg  or sometimes 130mg if its just one or 1/2 a tablet

Explanation:

Answer:

greater than

Explanation:

Based on the data provided, the empirical formula of the compund is CuCl2.6H20 and the percentage mass of copper is 24.8%.

Empirical formula is a formula showing the simplest ratios in which elements in the compund are combined.

From the data provided:

Mass of Hydrated Copper chloride = 1.00 g

Mass of dehydrated Copper chloride = 20.976 - 20.43 = 0.546 g

Mass of Water = 21.43 - 20.976 = 0.454 g

Mass of Copper = 0.248 g

Masd of Chlorine = 1.00 - (0.454 + 0.248) = 0.298

Mole ratio:

Cu = 0.248/64 = 0.004

Cl = 0.298/35.5 = 0.008

H2O = 0.454/18 = 0.025

Dividing with the smallest value:

Cu = 0.004/0.004 = 1

Cl = 0.008/0.004 = 2

H2O = 0.025/0.004 = 6

Therefore;

Empirical formula = CuCl2.6H20

Percentage mass of copper = 0.248/1.00 × 100%

Percentage mass of copper = 24.8%

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Answer:

A chemical change occurs when the reactants chemical compositions have changed

Explanation:

a change in colour, change in temperature, change in smell, formation of a precipitate, or the formation of gas bubbles

Hopes this helps

If fluorine is stronger than carbon, fluorine will receive a negative charge.

The electronegativity series is the order in which elements of the periodic table are ranked in terms of their negative charges.

Elements with higher electron affinity are positioned higher in the series. According to this question, fluorine is stronger than carbon.

This means that fluorine will receive a negative charge (-) to become more electronegative.

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Lewis structure is the electron dot representation of the atomic and molecular bonds of the molecules. Trigonal planar is the shape of the formaldehyde.

A trigonal planar shape of the molecule is the arrangement of the central atom attached to the other three atoms making them look triangle-shaped.

The attachment of the carbon to the two hydrogens and one oxygen atom can be given by the VSEPR theory. The number of the electron pair in the molecule is 3 making them [tex]\rm sp_{2}[/tex] hybridized and hence have a trigonal planar shape.

Therefore, option D.  trigonal planar is the shape.

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3.33 liter is the volume of 0.200 mole of an ideal gas at 200 kPa pressure and 400 K temperature.

Ideal gas equation for gas will be written as:

PV = nRT, where

P = pressure of gas = 200 kPa

n = moles of gas = 0.2 mole

T = temperature of gas = 400K

R = universal gas constant = 8.314 L.Pa/K.mole

V = to find?

On putting all these values on the above equation, we calculate for V as:

V = (0.2×8.314×400) / 200 = 3.325 = 3.33 L

Hence, option (2) is correct i.e. 3.33 L.

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