3 years ago

1. Displacement vectors of 10 m west and 14 m west make a resultant vector that is

Chemistry

1 answer:

Iteru [2.4K]3 years ago

3 0

Answer:

B 24 m west I belive that it is the answer

You might be interested in

Methylpentane is held in a closed container at 150°f. both gas and liquid are present. what is the pressure in the container

WITCHER [35]

Pressure =vapor pressure of 2 methlypentane at 150F. If you

7 0

2 years ago

I Need Help With This I’m so Confused on it.

ss7ja [257]

Answer:

Explanation:

yeah........

3 0

3 years ago

g Ethanol boils at 78.4 °C with \DeltaΔHvap = 38.6 kJ/mol. A 0.200-mol sample of ethanol is heated from some colder temperature

andrezito [222]

Answer:

8.77 kilo Joules will be the total amount of heat required for both the heating and the vaporizing.

Explanation:

Moles of ethanol of ethanol = 0.200 mol

Heat required to heat 0.200 moles of ethanol = Q = 1.05 kJ

Enthalpy of vaporization of ethanol = $\Delta H_{vap}=38.6 kJ/mol$

Heat required to vaporize 0.200 moles of ethanol = Q'

$Q'=\Delta H_{vap}\times 0.200 mol=38.6 kJ/mol\times 0.200 mol=7.72 kJ$

Total heat required to fore heating and the vaporizing :

= Q + Q' = 1.05 kJ + 7.72 kJ = 8.77 kJ

8.77 kilo Joules will be the total amount of heat required for both the heating and the vaporizing.

7 0

3 years ago

C. CaCl2 can be melted to produce calcium metal and give off chlorine gas. The equation for this

galben [10]

Answer:

Total gram of Ca = 99.26 g

Explanation:

Given:

Mass of CaCl₂ = 277.45 g

Find:

Mass of Ca

Computation:

Ca = 40 g/mol

Cl₂ = 2 (35.5) g/mol = 71 g/mol

Total CaCl₂ = 111 g/mol

Total gram of Ca = [40 / 111] 277.45 g

Total gram of Ca = 99.26 g

5 0

3 years ago

The overall charge of potassium bromide is zero. explain why.

yarga [219]

Explanation:

Balance between K+ charge and Br- charge = 0

8 0

3 years ago