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MariettaO [177]
3 years ago
13

Can DNA evidence exclusively conclude ancestry?

Chemistry
2 answers:
AnnZ [28]3 years ago
5 0

Answer:

I believe it can. If you give part of your body to a website it will trace back and give you information about your ancestry.

Explanation:

In-s [12.5K]3 years ago
4 0

Answer:yes

Explanation:

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The carbon cycle does not really involve matter. True False
stiks02 [169]
False everything involves matter

8 0
3 years ago
Read 2 more answers
What do ionic compounds form
Snowcat [4.5K]

Answer:

By the result of the formation of positive and negative ions, Ionic compounds are formed.

Explanation:

Electrons are actually transferred from one atom to another to form rare gas electron structures for each ion. The atom which forms a positive ion loses electrons to the atom which gains electrons to form a negative ion. A compound is not stable unless the number of electrons which are lost and gained are equal

3 0
3 years ago
A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the vol
Marat540 [252]

Answer:

21.19 L or 5.6 gallons

Explanation:

Data Given

initial volume V1 = 4.50 gallons

convert volume from gallons to L

                               1 gallon = 3.78541 L

                               4. 50 gallon = 3.785 L x 4.50

So,                        

initial volume V1 =  17.03 L

final Volume V2 = ?

initial Temperature T1  = 80° F

convert Temperature to Kelvin

                              T1 = ( 80° F -32) / 1.8 +273

                               T1 = 26.7° C + 273 = 299.7 K

final Temperature T2 = 100° C

convert Temperature to Kelvin

                                  T2 = 100° C + 273 = 373 K

Solution:

This problem will be solved by using charles' law equation at constant pressure.

The formula used

                      V1 / T1 = V2 / T2

As we have to find out volume, so rearrange the above equation

                      V2 = V1 x T2 / T1

Put value from the data given and conversion information in above equation

V2 =  17.03 L x 373 K / 299.7 K

V2 =  21. 19 L

So the final volume of Methane gas = 21.19 L

Or for Volume in gallons

1 L = 0.26

21.19 x 0.264 = 5.6 gallons

7 0
3 years ago
Attracting electrons to form chemical bonds is called what
MAXImum [283]

Answer: Ionic bonding

7 0
3 years ago
Read 2 more answers
How much voltage is required to run 1.6 A of current through a 240
pentagon [3]

Answer:

answer is not there

Explanation:

V=1.6×240

V=384volt

6 0
3 years ago
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