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Leno4ka [110]
3 years ago
12

Rr- Bb- rr- Heterogeneous long nose- PLEASE

Chemistry
2 answers:
alexdok [17]3 years ago
8 0

Answer:

Rr.. eye shape

rr... oval

Bb ,,,, square pants

DochEvi [55]3 years ago
4 0
Rr- round eyes
Bb- square pants
rr- oval eyes <33
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By inbvbsidiejebdhene
koban [17]
Jdndmsmabsbdjdndndbdbdjajaosos
7 0
4 years ago
An energy profile for the reaction A⇌B (left), and the change in concentration of B as a function of time (right), with and with
RoseWind [281]

Answer:

<em>What quantity dictates the speed of a reaction?</em> The activation energy

Explanation:

According to the collision theory, when molecules collide, they must overcome an energy barrier for the reaction to take place. This energy, known as activation energy, is represented by the difference in energy between the initial state and the transition state. The higher the activation energy, the slower the reaction. That's why catalysts reduce the activation energy to accelerate the reaction.

3 0
4 years ago
What does the aufbau principle suggest about electron configuration?
Scorpion4ik [409]

Answer:

Electrons occupy orbitals with the lowest energy first.

Explanation:

The Aufbau Principle states that electrons will fill the atomic orbitals with the lowest energy levels first, before occupying others with higher energy levels.

For example, electrons will fill the 1s orbital before filling the 2s orbital.

4 0
4 years ago
Read 2 more answers
1) 0.143 g Mg into atoms<br> 2) 0.101 kg Ti into atoms
Neporo4naja [7]

Answer:

The answer to your question is below

Explanation:

1) 0.143g of Mg into atoms

- Look for the atomic number of Magnesium in the Periodic table              

Atomic number = 24.31 g

-Use the Avogadro's number to find the number of atoms

                          24.31g ------------------- 6.023 x 10²³ atoms

                           0.143 g -----------------  x

                           x = (0.143 x 6.023 x 10²³) / 24.31

                           x = 8.613 x 10²² / 24.31

                           x = 3.54 x 10²¹ atoms

2) 0.101 kg of Ti into atoms

-Look for the atomic number of Titanium in the Periodic table

Atomic number = 47.87 g

-Use the Avogadro's number to find the number of atoms

                      47.87 g --------------------- 6.023 x 10²³

                      101 g    ----------------------  x

                       x = (101 x 6.023 x 10²³) / 47.87

                       x = 6.08x 10²⁵ / 47.87

                      x = 1.27 x 10²⁴ atoms                            

3 0
3 years ago
Calculate the mass percent composition of nitrogen in co(nh2)2.
Mashcka [7]
The  mass  percentage  composition  of  nitrogen  in  CO(NH2)2  is 46 .7%

    calculation

%  mass  =   molar  mass  of nitrogen/ molar mass  of  Co(NH2)2 

molar mass  of nitrogen =  14 x2 = 28g/mol  since there is  two  nitrogen atom  in  Co(NH2)2\

molar mass  of CO(NH2)2  = 12 + 16 + (14 x2) +( 2 x2)=  60 g/mol

the %  mass  is therefore =28 /  60  x100   =46.7%
3 0
3 years ago
Read 2 more answers
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