Negatively charged particles within the atom are called what?

What mass of propane is necessary to react with the amount of oxygen calculated in the previous question? g C3H8

gladu [14]

12.41g is the answer

4 0

3 years ago

If 50 g of lead (of specific heat 0.11 kcal/kg ∙ C°) at 100°C is put into 75 g of water (of specific heat 1.0 kcal/kg ∙ C°) at 0

Contact [7]

Answer: The final temperature is $279.8K$

Explanation:

$heat_{absorbed}=heat_{released}$

As we know that,

$Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})$

$m_1\times c_1\times (T_{final}-T_1)=-[m_2\times c_2\times (T_{final}-T_2)]$ .................(1)

where,

q = heat absorbed or released

$m_1$ = mass of lead = 50 g

$m_2$ = mass of water = 75 g

$T_{final}$ = final temperature = ?

$T_1$ = temperature of lead = $100^oC=373K$

$T_2$ = temperature of water = $0^oC=273K$

$c_1$ = specific heat of lead = $0.11kcal/kg^0C$

$c_2$ = specific heat of water= $1.0kcal/kg^0C$

Now put all the given values in equation (1), we get

$50\times 0.11\times (T_{final}-373)=-[75\times 1.0\times (T_{final}-273)]$

$T_{final}=279.8K$

Therefore, the final temperature of the mixture will be 279.8 K.

3 0

4 years ago

How much heat (in joules) is required to completely melt 10.00 g of ice starting at 0 oc?

Yuri [45]

/////// 400 cal ///////

3 0

3 years ago

What happens when Mg forms an ionic bond?

lara [203]

When this reaction occurs, strong ionic bonds form between two oppositely charged particles (ions). Magnesium is a group II metal, and therefore has two electrons in it's highest energy level (or outermost electron shell). ... Therefore, they readily take up these two electrons to form negatively charged O2- ions

6 0

3 years ago

Read 2 more answers

During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be r

ludmilkaskok [199]

The most important reaction involved in the reoxidation of NADH is Pyruvate → lactate

Two ATP were generated as a net result of glycolysis, two NAD+ were converted to two NADH + H+, and two glucose molecules were divided into two pyruvate molecules.

Pyruvate will go through a process called fermentation when oxygen is absent.

The NADH + H+ from glycolysis will be recycled back to NAD+ during fermentation, allowing glycolysis to proceed.

NAD+ is converted during the glycolysis process into NADH + H+.

Glycolysis cannot proceed without the presence of NAD+.

The NADH produced during glycolysis will be oxidised to create new NAD+ during aerobic respiration, when it will be used once more in glycolysis.

Pyruvate will undergo oxidation in the absence of oxygen or if an organism is unable to engage in aerobic respiration.

Hence The most important reaction involved in the reoxidation of NADH is Pyruvate → lactate

Learn more about Reoxidation here

brainly.com/question/14853085

#SPJ4

8 0

2 years ago