3 years ago

6. Which of the following pH values would have the highest concentration of hydroxide ions? *

Chemistry

1 answer:

jeyben [28]3 years ago

4 0

pH. 10 because it is strong base

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The burning of a sample of propane generated 1 04.6 kJ of heat. All of this heat was used to heat 500.0 g of water that had an i

Paul [167]

Answer: 70.0°C

Explanation:

Quantity of heat = Mass * Specific heat * Change in temperature

Quantity of heat = 104.6 KJ

Mass = 500.0 g

Specific heat of water is 4.18 J/g°C

Change in temperature assuming final temperature is x = x - 20

Units should be in grams and joules:

104,600 = 500 * 4.18 * (x - 20)

104,600 = 2,090 * (x - 20)

x - 20 = 104,600/2,090

x = 104,600/2,090 + 20

x = 69.8

= 70.0°C

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3 years ago

Which mixture is most likely to form a suspension?flour and liquid water, as in gravy metal coins and liquid water sodium chlori

azamat

<span>The mixture that is most likely to form a suspension is flour and liquid water mixed together, as in a mixture like gravy. A suspension mixture is a mixture that has large solid particles, particles that are large enough for sedimentation.</span>

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3 years ago

In which grouping of the periodic table do the elements have simliar properties

STatiana [176]

I would have to say [c]

but it could also be [b]