All categories

3 years ago

Magnesium will...

Chemistry

1 answer:

azamat3 years ago

3 0

Answer:

Explanation:

magnesium always lose 2 electrons

You might be interested in

Ionic compounds can be made from a metallic ion and a nonmetallic ion. Metallic ions are positive (cations). Nonmetallic ions ar

Effectus [21]

All the answers in the equation above will be Zero (0)

7 0

3 years ago

Read 2 more answers

How many grams of O2 are in 1.51 x 1023 molecules?

VMariaS [17]

Answer:

I think is c 4.00 g

Explanation:

that was my answer

7 0

3 years ago

What implications need to be considered when creating environmental policies?

Igoryamba

Answer:

How will it affect the environment? Is its benefit worth the cost?

Explanation:

when creating environmental policies you should always look into if it is worth it or not and how it will affect the environment

4 0

3 years ago

Read 2 more answers

Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held

Cerrena [4.2K]

Answer : The heat energy absorbed will be, $1.23\times 10^5cal$

Solution :

The process involved in this problem are :

$(1):H_2O(s)(0^oC)\rightarrow H_2O(l)(0^oC)\\\\(2):H_2O(l)(0^oC)\rightarrow H_2O(l)(32.0^oC)$

The expression used will be:

$\Delta H=m\times \Delta H_{fusion}+[m\times c_{p,l}\times (T_{final}-T_{initial})]$

where,

m = mass of ice = 1100 g

$c_{p,l}$ = specific heat of liquid water = $4.18J/g^oC$

$\Delta H_{fusion}$ = enthalpy change for fusion = $6.01kJ/mole=6010J/mole=\frac{6010J/mole}{18g/mole}J/g=333.89J/g$

Molar mass of water = 18 g/mole

Now put all the given values in the above expression, we get:

$\Delta H=1100g\times 333.89J/g+[1100g\times 4.18J/g^oC\times (32.0-0)^oC]$

$\Delta H=514415J=122948.1358cal=1.23\times 10^5cal$

Conversion used : (1 cal = 4.184 J)

Therefore, the heat energy absorbed will be, $1.23\times 10^5cal$

7 0

3 years ago

HELP!! 50 POINTS! PLEASE ANSWER AND EXPLAIN WHY:

Vikki [24]

Answer:

The correct set of measurement is D

8 0

3 years ago