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inn [45]
3 years ago
9

Two hydrogen atoms covalently bond to form a hydrogen molecule.

Chemistry
1 answer:
ankoles [38]3 years ago
7 0

Answer:

B

Explanation:

the energy of two separate hydrogen atoms decreases as they approach each other, and the single electrons on each atom are shared to form a covalent bond.

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Xà phòng hóa hoàn toàn 17,6 gam hỗn hợp 2 este là etyl axetat và metyl propionat bằng lượng vừa đủ V (ml) dung dịch Na0H 0,5M. V
Igoryamba

Answer:

0,5m

Explanation:

3 0
3 years ago
How many oxygen atoms are in 1.60 g of quartz? hints?
Naily [24]
Quartz has the formula SiO2
From the periodic table:
mass of oxygen = 16 grams
mass of silicon = 28.0855 grams
Mass of one mole of quarts = 28.0855 + 2(16) = 60.0855 grams

number of moles = mass / molar mass
number of moles = 1.6 / 60.0855 = 0.0266 moles

Each mole of quartz contains Avogadro's number of atoms.
Therefore:
number of atoms in 1.6 g = 1.6 x 6.02 x 10^23 = 1.603 x 10^22 atoms
4 0
3 years ago
Read 2 more answers
Define energy conservation.
Reil [10]
Energy conservation is the effort made to reduce the consumption of energy by using less of an energy service. This can be achieved either by using energy more efficiently or by reducing the amount of service used. Energy conservation is a part of the concept of Eco-sufficiency
5 0
3 years ago
In your own words, explain the periodic law.
mote1985 [20]

    States that the properties of elements are periodic or recurring and are correlated to their atomic number.

6 0
4 years ago
Which of the following soils is the most porous? Soil A - flat, sorted particles. Soil B - round, sorted particles Soil C - roun
Ksju [112]

Answer: Option (b) is the correct answer.

Explanation:

Porosity means the ease with which a fluid can pass through between a rock or cracks etc.

If particles of a soil are flat and even if they are sorted then there will rarely be any space available for fluid or water to pass through it.

If soil particles are round in shape and are sorted then there will be space available for the fluid to pass through it. Hence, this type of soil will be most porous.

Similarly, if soil particles are round but are unsorted then there will be less space available as compared to sorted particles. This is because particles are placed randomly so, somewhere there will be much less space and somewhere there will be large space available. As a result, soil will not be most porous.

If soil particles are flat and unsorted then there will also be less space available for the fluid to pass through it. Thus, soil will be less porous.

Hence, we can conclude that out of the given options, soil B - round, sorted particles is the most porous.

4 0
3 years ago
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