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2 years ago

What happens when muscle cells are triggered?

Chemistry

2 answers:

love history [14]2 years ago

6 0

Answer:

When myocytes (aka muscle cells) are triggered at a certain point for awhile it can cause strain and pain throughout the muscle.

BartSMP [9]2 years ago

5 0

Answer:

calcium ions are released from its store inside the sarcoplasmic reticulum, into the sarcoplasm (muscle ).

Explanation:

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Why is the anatomy of the human body not a general reason to study chemistry. Need help for a good reply.

ivolga24 [154]

Anatomy's a biology topic!

8 0

3 years ago

What would you expect to observe when you add flour to a glass of water?

algol [13]

Answer:

hmmm

Explanation:

hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

4 0

3 years ago

Read 2 more answers

Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction: 2H2O2(l) → 2H2O(l) + O2(g) ΔH =

Mashcka [7]

<u>Answer:</u> The amount of heat released is -7.203 kJ

<u>Explanation:</u>

The given chemical equation follows:

$2H_2O_2(l)\rightarrow 2H_2O(l )+O_2(g);\Delta H=-196kJ$

To calculate the enthalpy change for 1 mole of the hydrogen peroxide, we use unitary method:

When 2 moles of hydrogen peroxide is reacted, the enthalpy of the reaction is -196 kJ

So, when 1 mole of hydrogen peroxide will react, the enthalpy of the reaction will be $\frac{-196}{2}\times 1=-98kJ$

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass of hydrogen peroxide = 2.50 g

Molar mass of hydrogen peroxide = 34 g/mol

Putting values in above equation, we get:

$\text{Moles of hydrogen peroxide}=\frac{2.50g}{34g/mol}=0.0735mol$

To calculate the heat of the reaction, we use the equation:

$\Delta H_{rxn}=\frac{q}{n}$

where,

$q$ = amount of heat released

n = number of moles = 0.0735 moles

$\Delta H_{rxn}$ = enthalpy change of the reaction = -98 kJ/mol

Putting values in above equation, we get:

$-98kJ/mol=\frac{q}{0.0735mol}\\\\q=(-98kJ/mol\times 0.0735mol)=-7.203kJ$

Hence, the amount of heat released is -7.203 kJ

8 0

3 years ago

An example of hydrogen bonding would be the attractions between outer hydrogen atoms and the central nitrogen atom within the NH

marshall27 [118]

Answer:

The answer to your question is: false.

Explanation:

Hydrogen bonding is tha attraction of hydrogen atoms to the oxygen or nitrogen of a different molecule not between the atoms of the same molecule.

So this description of hydrogen bonding is incorrect.

7 0

4 years ago

Read 2 more answers

Describe the different energy levels of electrons in an atom.

rosijanka [135]

Answer:

Explanation:

If it is at a higher energy level, it is said to be excited, or any electrons that have higher energy than the ground state are excited. They are then called degenerate energy levels.

6 0

3 years ago