How many grams is 2.393 x 10^24 atoms of CI
70.45 g CI
140.9 ga
140.9 mole CI
70.45 mole CI

Answer:

Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).  

Explanation:

Answer:

I guess second option i.e. More potential employment opportunities and revenue because collecting recyclable material needs manpower to collect them, and secondary employment in transport i.e. to collect all the material at one place we need transport and so on!

Answer:

44.2 L

Explanation:

Use Charles Law:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

We have all the values except for V₂; this is what we're solving for. Input the values:

[tex]\frac{56 L}{346K} =\frac{V2}{273K}[/tex]   -  make sure that your temperature is in Kelvin

From here, we need to get V₂ by itself. To do this, multiply by 273 on both sides:

[tex]\frac{56*273}{346} = V2[/tex]

Therefore, V₂ = 44.2 L

It's also helpful to know that temperature and volume are linearly related. So, when temperature drops, so will volume and vice versa.

Answer: pls mark brainliest

Explanation: i think so its D

Answer:

These are Magnesium bromide is MgBr2. “ionic compounds.” When atoms join together, they form either molecules or ionic compounds, depending on whether they are joined by covalent bonds or ionic bonds. ... When atoms join together by ionic bonds, they form “ionic compounds”.

Explanation:

Hope it helps u

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Answer:

Explanation:

1 mol of Aluminum = 26.98 grams

550 mol of Aluminum = x

1 * x = 550 * 26.98

x = 14839 grams

The scientific method is an empirical method of acquiring knowledge.

These are the 5 scientific methods:

Answer:

1, you should use candles for experiments because, You created an area of low pressure! When the experiment is run you can see tiny bubbles escaping under the glass which shows that the increased air pressure from the heated air as the candle burns. Once the candle runs out of oxygen, the candle burns out and the remaining air inside cools down.

2. you should put candles on sand trays, Pour layers of sand into a glass vase, alternating colors with each layer. For a more interesting look, try uneven layers in various heights. Keep layering sand until you're a few inches from the top of the vase. Place your votive candle in the center of the sand.

Explanation:

its scientific proven

Answer:

a atoms

Explanation:

Answer:

C. 8.55 atoms

Explanation:

Answer:

Explanation:

molecules NH3 = 1.47 moles x 6.02x1023 molecules/mole = 8.9x1023 molecules of NH3

Answer:

Cannot be broken down into other substances

Explanation:

Answer:

You have described a scenario where nitrogen is the limiting reagent since:

2 N2 + 6 H2 → 4 NH3

You could make four molecules of ammonia and have four molecules of hydrogen left over.

Answer:

4

Explanation:

water starts to boil into water vapor at 100'C. at this point, temperature becomes costant at 100'C as heat energy is used up by the particles to overcome the intermolecular forces between the molecules.

once the forces holding the particles together have been overcome, the temperature will start to rise again showing that all the liquid water has been converted into water vapor

Answer:

A. light energy is used in photosynthesis and created by respiration

Answer:

the volume of a give gas simple is directly propotional assolute temperature at constant pressure .the volume of a gavi. amount of gass is inversely propotional ot Its pressure when temperature is help constant

Answer:

Salts do not conduct electricity at the solid state since the ions are in a fixed position in the lattice. However, at the molten state or in solution, the ions are free and they can move within the liquid phase to serve as electrons shuttles and therefore, they become conductive.

Explanation:

Answer:

b

Explanation:

i think its b because theories are usually developed after many experiments/tests by different scientists. at least i think so lol i dont remember too much from biology

Answer:

A. the charge on their ions

Explanation:

Elements are grouped into the same group in the periodic table if they have the same valence electrons. However, the number of valence electrons an element has, determines the number of charges it can possess.

According to this question, two elements in the same group of the periodic table will have the same charge on their ions because they both have the same number of valence electrons.

Answer:

may be A, 8.43 × 10........ atoms of l

Answer:

A

Explanation:

A, Na b/c The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water,

Answer:

Generally, all atoms of elements contain three sub-atomic particles- Protons(Positively-charged), Neutrons(Neutral) and Electrons(Negatively-charged).

The Magnitude of the Positive Charge possessed by the Protons and the Magnitude of the Negative Charge possessed by the Electrons cancel each other, which make the atom electrically neutral.

Hence,

Without any electrons, the magnitude of the positive and negative charges wouldn't balance, and the atom would be unstable and disintegrate almost immediately. Hence, all stable atoms should have electrons revolving around them, where the number of protons and electrons are the same, under normal conditions.

To Conclude,

Every atom of an element will have electrons arranged in different shells, or matter couldn't exist without electrons.

Jennifer has a jar full of stones. For one year, Jennifer shakes the jar several times each day. The illustration below shows the changes that occurred after one year, and this shows that because of the fragmentation, this happens.

Initially, before a year, there were many rocks, but as she continuously shrank the box, that led to the fragmentation. Due to vibration for a long time, the larger rocks break into the smaller particles as a result of the amount of rocks converted into the small particles and sands. These smaller stone fragments may then accumulate at the bottom of the jar as a result of this there is a decrease in the overall number of stones in the jar.

Learn more about the rock fragments here

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Answer: Yes, light can bend around corners. ... The ability of light to bend around corners is also known as "diffraction". There are two mechanisms that cause light to bend around corners. Light waves indeed bend around corners because of diffraction, as shown in this illustration.

Explanation:

Answer: Harold car has better mileage

Explanation: US gallon is 3.785 litres and one mile is 1.6 km.

35 · 1.6 km/ 3.785 l = 14.8 km/l

The Harold's car has a fuel efficiency of 35 miles per gallon and has better gas mileage.

The efficiency is defined as the peak level of performance that uses the least amount inputs to achieve the highest amount of output.

Effectiveness is the ability to produce a better result, one that delivers more value or achieves a better outcome.

Efficiency is expressed as

Efficiency = output / input

The mileage of Harold's can be calculated as:

US gallon has 3.785 liters and 1 mile is 1.6 km

Thus  mileage = 35 x 1.6 km / 3.785 l

                       = 14.8 km/l

Mileage of Frank's car = 12 x 1.6 km / 3.785 l

                                     = 5.07 km/l

Thus, the Harold's car has a fuel efficiency of 35 miles per gallon and has better gas mileage.

To learn more about efficiency, refer to the link below:

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Answer:

5. radiative zone 6. 27 million degrees Farenheit 7. photosphere 8. approximately 25 million degrees Farenheit if using the calculation for the core temperature of the sun at 27 million degrees as the corona is 2 million degrees

Explanation:

Answer:

237.80mL

Explanation:

Molarity of a solution can be calculated using the formula;

Molarity = number of moles (n) ÷ volume (V)

However, we first need to calculate the number of moles of Cu(NO3)2 by using the formula:

moles = mass/molar mass

Molar mass of Cu(NO3)2 = 187.56 g/mol

moles = 146.59 ÷ 187.56

moles = 0.782moles

Molarity = n/V

3.28 = 0.78/V

V = 0.78/3.28

V = 0.2378L

In milliliters (mL), 0.24 litres = 0.24 × 1000

= 237.80mL

Answer:

B.every 31 days

Explanation:

i need brainlieast pls help me pls pls oooo