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sashaice [31]
2 years ago
15

What kind of change forms a chemical reaction?

Chemistry
2 answers:
satela [25.4K]2 years ago
7 0
Physical change I’m pretty sure
Zolol [24]2 years ago
7 0

Answer:

a chemical change is correct answer

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Write the name of the compounds
blagie [28]

P2O5 = Phosphorus pentoxide

CuO = Copper (II) oxide

NH4CI = Ammonium Chloride

Mn(OH)2 = Pyrochroite

H2O2 = Hydrogen peroxide

P4S9 = Tetraphosphorus nonasulfide

CIO2 = Chlorine dioxide  

NaF = Sodium fluoride

FeSO3 = Iron (II) Sulfite

Fe(NO3)3 = Iron (III) Nitrate  

Cr(NO2)3 = Chromium (III) Nitrite

NaHCO3 = Sodium Hydrogen Carbonate  

H2PO4 = Dihydrogen Phosphate Ion  

NaCN = Sodium Cyanide  

IF7 = Iodine Heptafluoride  

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5 0
2 years ago
How much kilometers is in 6000m
lord [1]

Answer:

about 3 miles i think

Explanation:

3 0
2 years ago
Read 2 more answers
Calculate the solubility of benzene in water at 25 c in ppm. the required henry's law constant is 5.6 bar/mol/kg and benzene's s
kap26 [50]

The relationship between pressure and solubility of the gas is given by Henry's law as:

S_g = kP_g

where,

S_g is the solubility of the gas.

k is proportionality constant i.e. Henry's constant.

P_g is pressure of the gas.

k = 5.6 bar/mol/kg (given)

P_g = 0.13 bar (given)

Substituting the values,

S_g = 5.6 bar/mol/kg\times 0.13 bar = 0.728 mole/kg

To convert mole/kg to g/kg:

Molar mass of benzene, C_6H_6 = 6\times 12+6\times 1 = 78 g/mol

0.728\times 78 = 56.784 g/kg

Now for converting into ppm:

Since, 1 ppm = 0.001 g/kg

So, 56.784\times 1000 = 56784 ppm.

Hence, the solubility of benzene in water at 25^{o} C in ppm is 56784 ppm.


7 0
3 years ago
!! ANSWER QUICK !!
kari74 [83]

Answer:

I can use a dichotomous key. It helps me classify objects by sorting it out with "yes" and "no" questions.

or

I can use a Punnett Square. It helps me classify what genes the offspring will receive simply by figuring out the recessive and dominant genes as well as the hetzygous and homzygous.

Now give an example of which ever chart you choose by drawing it if that is required. For the Punnett Square label each of the squares Top right Hetzygous, top left dominant, bottom left recessive, bot-tom right homzygous. And for the dichotomous key put a 5-7 length branch showing the animals that have fur, can breathe under water, what cannot or doesn't have those traits. or something similar

Hopefully this helps :)

3 0
2 years ago
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One main difference between a Prokaryotic cell and an Eukaryotic cells is __________.
sasho [114]
The Eukaryotic cell has a nucleus
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2 years ago
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