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schepotkina [342]
3 years ago
7

Was

Chemistry
1 answer:
saw5 [17]3 years ago
7 0
The answer to this is a. 20%
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The acid dissociation constant, Ka, of HNO3 is 4.0 x104. What does the ka
Shtirlitz [24]

Answer:

i thing its b

Explanation:

3 0
3 years ago
How many sigma bonds does NBr3 have?
Kisachek [45]

Answer:

It has 3 sigma bonds

Explanation:

A sigma bond is a covalent interaction between two atoms, these bonds are the strongest type of covalent bonds and they are formed by the overlap of atomic orbitals.

The nitrogen is bond to the bromine atoms through sigma bonds, which means that exist 3 sigma bonds in the molecule.

this molecule has a trigonal pyramid geometry due to the free pair of nitrogen electrons.

5 0
3 years ago
The equilibrium-constant expression depends on the of the reaction. (A) stoichiometry (B) mechanism (C) stoichiometry and mechan
myrzilka [38]

Answer:

(A) stoichiometry

Explanation:

For example, Consider the reaction of the type ,

aA + bB-----> cC +dD

where b, a, d, and c are the stoichiometric coefficients for the balanced equation .

The equilibrium constant expression is denoted by K ,

equilibrium constant is the product's concentration each raised to the power of its corresponding stoichiometries , divided by reactant's concentration each raised to the power of its corresponding stoichiometries .

8 0
4 years ago
PLZ HELP THIS IS DUE RN!!!!!! NO ONE IS HELPING ME :(
Juli2301 [7.4K]

Answer:

Eght: 0

Explanation:

The work formula is W = F*d where d is displacement (which means the direction matters)

Same amount of work.

Eight

Time does not matter in Work. Force and Distance do.

F = 50 N

s = 0  The only work you have done is move the ball above your head. Thereafter you just held it.

t = 15 but no work is done. Tell your tired muscles that as they try and deal with holding a 5 kg mass above you head.

W = 0

Nine

Again from the last question you should be able to tell that time does not matter. The force is the same for both of you (that's why he's your identical twin).

So the work is the same. You both weigh the same. You both went the same distance.

8

4 0
3 years ago
A flying airplane is affected by which force or forces? A. friction only B. gravity only C. gravity and friction only D. gravity
alekssr [168]

Answer:

D. gravity, friction, and an applied force.

Explanation:

There are 4 forces that act on an airplane in motion and they are:

Gravity and drag:

It acts in a downward direction—toward the center of the Earth.

Lift:

It is the force that acts at a right angle to the direction of motion through the air. Lift is created by differences in air pressure.

Thrust:

It is the force that propels a flying machine in the direction of motion.

6 0
3 years ago
Read 2 more answers
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