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a_sh-v [17]
2 years ago
8

1.Where do the genes that determine an individual's traits come from?

Chemistry
2 answers:
daser333 [38]2 years ago
7 0

Answer:

1)  C. Parents pass their genes down to their offspring.

2)  A. Genes directly lead to traits

For 2, it could be D but I think it is describing DNA.

stich3 [128]2 years ago
6 0

Answer:

1. C

2. D

Explanation:

Parents pass down genes to there kids. They can pass down certain ones, like a gene for red hair.

Not every gene you get is instantly going to happen, if you get one brown hair gene and one red hair gene, you are going to have brown hair since it is a dominant trait.

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Which type of chemical model shows the bond angle and bond length between atoms and compounds?
ELEN [110]

A molecular structure also shows the bond angle and the Bond length between different atoms in a compound.

8 0
3 years ago
SnO2 + 2 H2 ——> Sn + 2 H2O
SpyIntel [72]

Answer:

0.15g

Explanation:

Given parameters:

Number of molecules of water = 1.2 x 10²¹ molecules

Unknown:

Mass of SnO₂  = ?

Solution:

To solve this problem, we have to work from the known to the unknown specie;

             SnO₂   +    2H₂    →   Sn  +   2H₂O

Ensure that the equation given is balanced;

       

Now,

          the known species is water;

                  6.02 x 10²³ molecules of water  = 1 mole

                   1.2 x 10²¹ molecules of water  = \frac{1.2 x 10^{21} }{6.02 x 10^{23} }    = 0.2 x 10⁻²moles

Number of moles of water  = 0.002moles

           From the balanced chemical equation:

         

             2 mole of water is produced from 1 mole of    SnO₂  

           0.002 moles of water will be produced from \frac{0.002}{2}  = 0.001moles

To find the mass;

           Mass  = number of moles x molar mass

Molar mass of  SnO₂ = 118.7 + 2(16) = 150.7g/mol

        Mass  =  0.001 x 150.7 = 0.15g

3 0
3 years ago
Which condition applies when water boils at 100oC
VLD [36.1K]
An ambient pressure of 1 atm
5 0
3 years ago
2. What is the average height in cm for plants in group 2? * 38 cm 56 cm 97 cm 114 cm
Nina [5.8K]

Answer:

76.25cm

Explanation:

38cm + 56cm +97cm +114cm = 305cm

305cm÷4 = 76.25cm

6 0
3 years ago
The coefficients in a chemical equation??
cricket20 [7]
D is the answer I believe.
3 0
3 years ago
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