What is the charge for all elements in group 1A

Does a continental rift form when shear acts on continental crust

asambeis [7]

Yes

If this helped and you have any other questions, feel free to comment on my wall. Hope this helped.

7 0

2 years ago

354.5 g of chlorine gas (MW = 70.9 g/mol) is held in a vessel with a fixed volume of 70. L.

scZoUnD [109]

Answer:

1.77 atm

Explanation:

We have to check the values that gives the problem:

V= 70 L

mass =354.5 g

Molas weight= 70.9 g/mol

T=30 ºC

P= ?

We can find the moles of chlorine if we use the molar weight:

$354.5g~\frac{1~mol}{70.9~g}$

$5~mol$

Now, we have the moles, volume, temperature therefore we can use the ideal gas equation:

$P*V=n*R*T$

We know the R value:

$0.082\frac{atm*L}{mol*K}$

We have “K” units for the temperature, so we need to do the conversion:

$30+273.15=303.15~K$

With all the data we can plug the values into the equation:

$P*70L=5mol*303.15K*0.082\frac{atm*L}{mol*K}$

$P=\frac{5mol*303.15K*0.082\frac{atm*L}{mol*K}}{70L}$

$P=1.77~atm$

I hope it helps!

5 0

2 years ago

An automobile gasoline tank holds 22 kg of gasoline. When the gasoline burns, 86 kg of oxygen is consumed and carbon dioxide and

rosijanka [135]

The law of conservation of mass states that mass is an isolated system and is neither created nor destroyed.

Applying this concept on a chemical reaction means that the total mass of reactants should be equal to the total mass of the products.

In this question, we have gasoline and oxygen as reactants and we have carbon dioxide and water as products.
Based on the law, the sum of the masses of oxygen and gasoline is equal to the sum of masses of carbon dioxide and water.
Therefore,
mass of carbon dioxide and water = 22 + 86 = 108 kg

7 0

2 years ago

The same heat transfer into identical masses of different substances produces different temperature changes. Calculate the final

myrzilka [38]

Answer: final temperatures will be

a) water 21 C

b) concrete 20.005 C

c) steel 20.008 C

d) mercury 53 C

Explanation:

Change in temp dT = dH / (mass x specific heat)

Specific heat of these materials can be found from many sources:

water = 1 kcal / kg C

concrete = 210 kcal / kg C

steel = 114 kcal / kg C

mercury = 0.03 kcal /kg C

So dT (water) from 1 kcal heat into 1 kg water = 1 kcal / (1 kg x 1 kcal/kg C) = 1 C therefore the final temperature is 20 + 1 = 21 C

But dT (steel) = 1 kcal / (1kg x 114 kcal/kg C) = 0.008 C so the final temperature is 20 + 0.008 = 20.008 C

The results for concrete and mercury are calculated in the same way

7 0

2 years ago

1

fredd [130]

Answer: Combustion changes the potential chemical energy into kinetic energy in the form of heat. For combustion an organic wood combines with oxygen already in the air and undergoes a chemical reaction that gives off carbon dioxide,water,and energy in the form of heat and light.

8 0

2 years ago