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omeli [17]
3 years ago
9

This volcanic rock formed _____ from lava _____ in gas.

Chemistry
2 answers:
Evgen [1.6K]3 years ago
7 0
C or a one of those hope it helps !!!!
viktelen [127]3 years ago
4 0

Answer:

C is the correct answer

Explanation:

*Brainliest is appreciated

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Before the development of electrophoresis to separate macromolecules, ____________ was used.
max2010maxim [7]

Before the development of electrophoresis to separate macromolecules, high-speed centrifugation was used to isolate DNA.

A laboratory procedure called electrophoresis is used to divide DNA, RNA, or protein molecules according to their size and electrical charge. The molecules are moved by an electric current through a gel or other matrix. The technology of electrophoresis is crucial for the separation and examination of nucleic acids. At the lab bench, cloned DNA fragments are frequently isolated and worked with using nucleic acid electrophoresis.

High-speed centrifugation employs centrifugal force to separate particles with various densities or masses suspended in a liquid. High-speed rotation of the solution inside the tube causes each particle's angular momentum to experience centrifugal forces inversely proportionate to its mass.

To know more about electrophoresis refer to: brainly.com/question/28709201

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4 0
1 year ago
Which states of matter can form solutions?
IrinaVladis [17]

Answer:

c

Explanation:

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Is caffeine additive?
Romashka-Z-Leto [24]

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PLS HELP!! <br> Balance this equation: __H2+ 2 O2---&gt; 2 H2O
alekssr [168]

Answer:

 2H₂   +   O₂  →   2H₂O

Explanation:

The expression of the equation is given as:

              _H₂   +   2O₂  →   2H₂O

Now for expression above,

                           Reactants                                          Products

H                              2                                                            4

O                              4                                                           2

to balance the equation, we use 2 moles of hydrogen gas and 1 mole of oxygen gas;

           2H₂   +   O₂  →   2H₂O

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3 years ago
A device used to measure the amount of heat released or absorbed during a chemical process is a
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Calorimetry-the science or act of measuring changes in state variables of a body for the purpose of deriving heat transfer associated with changes of its due date.
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