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Sphinxa [80]
4 years ago
13

Which electrons in an atom make chemical bonds? why?

Chemistry
1 answer:
nikdorinn [45]4 years ago
4 0
Valence (outermost) electrons. Chemical bonds are formed when an atom does not have a full outermost shell, i.e. there are 7 electrons and 1 more is needed, or there is only 1 electron, which can be transferred to another atom.
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Discuss whether two products are required for a chemical reaction. (NEED HELP ASAP)
Alex787 [66]

Answer:

Yes.

Explanation:

"These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products."

There is a beginning product, and a reactant is needed in order for something to happen.

For example, according to Newton, something cannot happen until an exterior force comes and stops/pushes it.

Sorry if this is incorrect, I am just 4th grade :(

6 0
3 years ago
Please help me with number 5
mrs_skeptik [129]
Fluorine - 18.998 u
chromium - 51.996 u
tellurium - 127.6 u
dysprosium - 162.5 u
6 0
4 years ago
20 cubic inches of a gas with an absolute pressure of 5 psi is compressed until its pressure reaches 10 psi. What's the new volu
belka [17]
10 cubic inches
We will use Boyle's law that states that for a fixed amount of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional. 
P1 V1 = P2 V2
Where
 P1 is initial pressure = 5 psi
V1 is initial volume = 20 cubic inch
P2 is final pressure = 10 psi
V2 is final volume = unknown
V2 = P1,V1 / P2
V2 = 20 × 5 / 10
V2 = 100/10
V2 = 10 cubic inches


7 0
3 years ago
A 5-gal, cylindrical open container with a bottom area of 120 square inches is filled with glycerin and rests on the floor of an
aleksandrvk [35]

Answer:

a)  68.9 b/ ft²

b)  57.416

Explanation:

Volume of the cylindrical open container V = 5 gal

= (5)(231)

= 11155 in³

different diagrammatic expression has been shown in the attached file below for clear understanding.

Area A = 120 in²

V = hA

    = \frac{1155}{120}

    =  9.625 in

Upward acceleration , a_z= 3ft/s^2

\frac{dp}{dz} = \rho (g + a_z)

dp= -\rho (g + a_z)dz

\int\limits^P}_0 \,dp= -\rho (g + a_z)  \int\limits^0_h \,   dz

P_b = -\rho (g + a_z) h

= (2.4)*(32.2+3) (\frac{9.625}{12})

= 68.9 b/ ft²

b) The flowchart for the resultant force is shown in the  diagram below:

with that:

F_f = P_bA

F_f =\frac{(68.9)(120)}{(144)}

F_f =57.416

Thus,  the resultant force that the container exert on the floor of the elevator during this acceleration = 57.416

5 0
3 years ago
What is the charge on the Co ions in Co2O3?
cupoosta [38]

Answer:

6-

Explanation:

the total oxide ion charge in the formula unit is 6-

5 0
3 years ago
Read 2 more answers
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