Does every rock go through the rock cycle, from igneous to sedimentary to metamorphic each time around??? Please answer

Answers

Answer 1
Answer: No it does not ALWAYS go through all the stages because each rock forms differently at different rates. Igneous rock can weather to sediement rock, or melt to magma, however this does not necessarily mean it does this every time. It all depends on the temperature, wind, and pressure/heat.

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Identify the spectator ions in this reaction. Check all that apply. 2H+ + CrO4– + Ba2+ + 2OH– Ba2+ + CrO4– + 2H2O H+ CrO4– Ba2+ OH– 2H2O

Answers

Answer: CrO₄⁻ and  Ba²⁺


Explanation:


1) Chemical equation given:


2H⁺ + CrO₄⁻ + Ba²⁺ + 2OH⁻ → Ba²⁺ + CrO₄⁻ + 2H₂O


2) Analysis


That is an oxidation-reduction equation (some species are been oxidized and others are being reduced).


The given equation is known as total ionic equation, because it shows all the species as ions that are part of the reaction.


2) Specator ions


Spectator ions are the ions that do not change their oxidation state and are easily identified as they are the same in the reactant and product sides.


Here the ions that are the same in the reactant and product sides are:

CrO₄⁻ and  Ba²⁺


3) Addtitional explanation.


Once you identify the spectator ions you can delete them from the equation to obtain the net ionic equation , which in this case turns to be:


2H⁺ + 2OH⁻ →  2H₂O


But this is  not part of the question; it is some context to help you understand the use of the spectator ions concept.

Answer: B and C on the tenth question of the assignment

When a rocket rises what causes the reaction force

Answers

The action force when a rocket rises is caused by the rocket expelling gas out of its engine. The rocket reacts by moving in the opposite direction and lifting off from the launch pad.

Easy Question! Chemistry - Please help! I give thanks - It's the picture - Question 2

Answers

Volume of a cylinder = \pi r^(2) h
r = (D)/(2)
  = (8.4cm)/(2)
  = 4.2cm

h = 14.5cm
\pi = 3.14

V= (3.14) * ((4.2cm)^(2))*  14.5cm
  = 803.1 cm^(3)

The only tissue in your body that is able to contract , or shorten

Answers

The only tissue in your body that can contract or shorten is your muscle.
Your muscle tissues.

How does Silicon shape our technological reality

Answers

Silicon shapes our technological reality because computer chips are made out of silicon. Different computer parts, are made out of silicon chips, tablets, phones, different electronic devices, everything has some silicon in them. Without silicon we would (currently) not have any of those. That is how silicon shapes our technological reality :)

The silicon uses in :


1- Micro-chips.


2- Motherboards


3- components on nano-technologies


4- tablet


5- Phones


The explanation:


- When the silicon incorporated into electronics, They are termed as silicon wafers. It is used as a semiconductor.


- And when it combined with the other conductors this process called doping and become ideal to make transistors and be able to amplify electric signals.


That's how Silicon shape our technological reality.

How many liters of 0.760 Molar NaOH are needed to completely neutralize 145 mL of 11.33 Molar HCL

Answers

Answer:

35.00 mL

Explanation: