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vampirchik [111]
3 years ago
12

For a molecule to be considered inorganic it must not contain ?

Chemistry
1 answer:
horsena [70]3 years ago
8 0

Answer:

It must not contain protein.

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A student dropped a piece of nickel metal into a solution of HCl(aq). He observed the formation of gas bubbles and collected the
omeli [17]

Answer:

a. The student performed the splint test incorrectly. He should of observed a popping sound when the splint was placed in the test tube.

Explanation:

It is given that a student performed an experiment where he dropped a nickel metal in to HCl solution. He observed the reaction and performed a splint test in the test tube that is filled with a gas which is formed while Nickle is dropped into the solution of HCl.

But the experiment that the student performed was incorrect. He must have observed the popping sound when the splint was placed in the test tube.

When the splint was added to the gas splint flared up. The hydrogen gas pops out when exposed to the flame.

$Ni + HCl(aq) = NiCl + H_2$

Thus the correct option is (a).

5 0
3 years ago
__SIO2+__HF--> __ H2SIF6+ __H2O balanced equation
Dima020 [189]
1,6,1,2 that should be the answer
6 0
2 years ago
The age of fossils can sometimes be determined by radiometric dating, which is based on the constant rate of decay of radioactiv
True [87]
The age of the fossil given the present amount of Carbon-14 is given in the equation,
                               A(t) = A(o)(0.5)^t/h
where A(t) is the current amount, A(o) is the initial amount, t is time and h is the half-life. Substituting the known values to the equation,
                       A(t) / A(o) = 0.125 = (0.5)^(t/5730)
The value of t from the equation is 17190.
Thus, the age of the fossil is mostly likely to be 17190 years old. 
8 0
3 years ago
Buddhism was first brought to China via the
Firdavs [7]

Answer:

In the 1800s era

3 0
3 years ago
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jekas [21]

Answer:

Abiotic is non living thing, while biotic is a living thing

hope this info helps

4 0
2 years ago
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