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Zinaida [17]
3 years ago
12

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!

Chemistry
2 answers:
likoan [24]3 years ago
8 0

Answer:

BBB

Explanation:

solong [7]3 years ago
4 0

Answer:

ehn wet in be d problem which kind help u want biko?

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What is the H+ in solution with pH of 10.9
Soloha48 [4]

Answer:

Explanation:

has a pH of 6.6, then what is the H3O+ in solution X? View Answer · What is the pOH of a solution in which (H+)

8 0
3 years ago
It is found that the new element contains 74 protons and 110 neutrons. What is the atomic number of the element
jarptica [38.1K]

Answer:

74

Explanation:

we know,

atomic number = number of protons

so,

atomic number = 74

6 0
3 years ago
Read 2 more answers
A. At STP, what is the volume of 708 mol of nitrogen gas? 708 mol = 708 mol X L B. A sample of hydrogen gas occupies 14.1 L at S
elena-14-01-66 [18.8K]

Answer:

A. 15859.2 L or 15900 L

B. 0.629 mol

Explanation:

At STP, one mole is equal to approximately 22.4 L

L or mL is volume, so you are attempting to solve for L or mL.

A.

708 mol x (22.4 L/1 mol) = 15859.2 L (w/ significant figures included - 15900 L)

B.

(14.1 L) x (1 mole/ 22.4 L) = 0.629 mol.

5 0
3 years ago
SOMEONE, PLEASE HELP!!
scZoUnD [109]

Part 1:  

The process that arrow C signifies is the burning of fossil fuels in order to present carbon dioxide into the atmosphere. The mentioned procedure in the carbon cycle is comparatively new as humans were not able to generate huge concentrations of carbon dioxide by burning fossil fuels until the emergence of the Industrial revolution.  

Part 2:  

The phenomenon, which could discharge the compound into the air is the burning of fuels. It is an oxidation reaction in which the carbon present in the hydrocarbons in the fuel is oxidized to carbon dioxide by the presence of oxygen in the air. The carbon dioxide discharged into the atmosphere contributes to the greenhouse effect.  

Part 3:  

The elements, which produce it are conserved at the time of the carbon cycle by the Law of Conservation of Matter. According to this law, the matter is neither consumed nor produced, it only gets transformed. So, at the time of chemical procedures in the carbon cycle, the atoms of carbon are never destructed, however, they get rearrange and modify into distinct molecules. The mentioned cycle is essential for maintaining life on Earth.  

5 0
4 years ago
What charecteristics does Euglenoids have
Natasha2012 [34]
They are unicellular organisms with flagella.
They do not have a cell wall.
They have a thick outer covering, known as pellicle, that is composed of protein and gives them both strength and flexibility.
They are eukaryotes.
7 0
3 years ago
Read 2 more answers
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