All categories

3 years ago

If I have 2.4g of magnesium, how many g of oxygen(O2 ) will I need to react completely with the magnesium? 2Mg +O2 → MgO

Chemistry

1 answer:

Jet001 [13]3 years ago

5 0

Explanation:

just trying....hope that helps

You might be interested in

Which reaction will occur? 2NaBr+I2 —> 2NaI + Br2

Veronika [31]

Answer:

This is a single replacement reaction because I replaces Br.

7 0

4 years ago

Read 2 more answers

Boojho wants to separate the following materials as combustible and non-combustible. Can you help him?

katrin2010 [14]

Combustible: Charcoal, straw, cardboard, paper, candle, wood.

Non-combustible: Chalk, stone, iron rod, copper coin, glass.

3 0

3 years ago

What volume of CH4(g), measured at 25oC and 745 Torr, must be burned in excess oxygen to release 1.00 x 106 kJ of heat to the su

anastassius [24]

Answer:

$V=27992L=28.00m^3$

Explanation:

Hello,

In this case, the combustion of methane is shown below:

$CH_4+2O_2\rightarrow CO_2+2H_2O$

And has a heat of combustion of −890.8 kJ/mol, for which the burnt moles are:

$n_{CH_4}=\frac{-1.00x10^6kJ}{-890.8kJ/mol}= 1122.6molCH_4$

Whereas is consider the total released heat to the surroundings (negative as it is exiting heat) and the aforementioned heat of combustion. Then, by using the ideal gas equation, we are able to compute the volume at 25 °C (298K) and 745 torr (0.98 atm) that must be measured:

$PV=nRT\\\\V=\frac{nRT}{P}=\frac{1122.6mol*0.082\frac{atm*L}{mol*K}*298K}{0.98atm}\\\\V=27992L=28.00m^3$

Best regards.

8 0

4 years ago

Dalton's atomic theory

kotykmax [81]

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

4 0

3 years ago

Write a RACE paragraph to make and defend a claim about how salinity and temperature impact ocean density .

djverab [1.8K]

Answer:

Explanation:

Girl. No one is about to write a paragraph for you. Research, collect information and attempt it on your own. We are here to help, not to do your work for you.

7 0

3 years ago