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GaryK [48]
3 years ago
13

Compound name for C3F8

Chemistry
1 answer:
Naya [18.7K]3 years ago
8 0

Answer:

Perflutren

Explanation:

Perflutren is a fluorinated hydrocarbon and gaseous substance used as an imaging contrast agent.

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During science class, while studying mixtures, you mix together table salt and sand. Your teacher challenges you to separate the
olga2289 [7]
The property to be used is sieving. you get a bowl and a sieve when you pour the sand and salt,the salt being the small particle sieve to the bowl while the sand remain on the sieve as residue
7 0
3 years ago
. If this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be
frez [133]

Answer: No charge (0)

Explanation:

The atom has a proton of 22 and electron number of 19. This means the element has lost 3 electrons. Therefore, the net charge is +3.

So, if this atom gains 3 more electrons, the net charge would be zero (neutral).

The total number of electron would now be 22 which is the same as the proton number.

This implies the atom is now in an unreacted state or ground state.

3 0
3 years ago
How do I know what to do and can you help me because I really need it I am failing chemistry because it is too hard.
Arlecino [84]

Exothermic:

An Exothermic reaction is a chemical reaction that expels energy in the form of heat/light. Everything a Endothermic does not do. Pretty simple for this one

reactants → products + energy.

For future reference - Exo means release, thermic means heat.

<u>Energy is a Reactant </u>

<u />

<u>_________________________________________________________</u>

Endothermic:

An Endothermic reaction essentially is draining the heat energy from anything its its surroundings. Usually its just heat but can also be salt dissolving it water or ice melting. Another example would be frost on your windshield evaporating.

It is the exact opposite of an Exothermic reaction.

<u>Energy is a Product</u>

4 0
2 years ago
A sample of dinitrogen tetroxide (N204) gas occupies 144 L at STP. How many moles of nitrogen atoms are present in this sample?​
denis23 [38]

Answer:

Molecular (gas and liquid) Edit

Its gas can be easily obtained by heating liquid nitrogen and allowing it to evaporate. It has a wide range of uses and can be used instead of air in environments where oxidation is not desired:

to preserve the freshness of packaged foods,

to cover liquid explosives for safety purposes,

In the production of electronic components such as transistors, diodes and integrated circuits,

in the production of stainless steel,

For filling automobile and aircraft wheels due to its inert, moisture-free and non-oxidizing properties.

It is produced industrially and in large quantities by distillation from liquefied air and although it is defined as LN2, the correct spelling is NO2 (1). It is a freezing liquid and if it comes into contact with living tissue, it causes sudden freezing. If properly isolated from ambient temperature, it creates a source of nitrogen gas that does not require pressure. The ability of water to stay at temperatures well below freezing (77 K, -196 ° C or -320 ° F) makes it possible to use liquid nitrogen in many different areas:

freezing and transporting food products by dipping,

Preservation of living tissues, reproductive cells (sperm, eggs) and other biological samples and materials by freezing,

in visual experiments in science education,

as a heatsink in high sensitivity sensors and low noise amplifiers,

in dermatology. removing unpleasant looking warts or skin wounds with potential cancer risk,

As a cooler in cooling systems of computer hardware such as CPU or GPU.

Edit Acquisition

Nitrogen can be obtained in pure form by the decomposition of sodium acid (NaN3) and ammonium dichromate:

NaN3 → 2Na + 3N2 (300 ° C)

(NH4) 2Cr2O7 → N2 + Cr2O3 + 4H2O

Another method used in obtaining nitrogen is the reaction of ammonia with lime cream:

2NH3 + 3Ca (OCl) → 3CaCl3 + N2 + 3H2O

Edit Precautions

Nitrate fertilizers are dragged by irrigation water of cultivated lands and mixed with rivers and groundwater, causing great pollution. Compounds containing cyano (-CN) form extremely toxic salts and are lethal to all mammals.

Explanation:

4 0
2 years ago
What is the mass in grams
natka813 [3]

Answer:

the mass of one mole of an element, or Avogadro's number (6.02 x 1023) of atoms, is equal to its atomic mass in grams. In other words, 1 amu = 1 gram/mole. So if the mass of one hydrogen atom is 1 amu, the mass of one mole of hydrogen is 1 gram.

Explanation:

6 0
3 years ago
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