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3 years ago

True/False –Similar to liquids, gases cannot be compressed.

Chemistry

1 answer:

weeeeeb [17]3 years ago

3 0

Answer:

False

Explanation:

A liquid has a definite shape and takes on the volume of its container. A gas has both the shape and the volume of its container. The particles in a gas cannot be compressed into a smaller volume. Liquids tend to contract when heated.

Hope this helps

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20 Points!!!!!!!!!!!! Please Help!!!!

mamaluj [8]

Number 1: (A.)
Number 2: (A.)
Number 3: (B.)

I'm probably wrong but that is what i think

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3 years ago

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Which of the following explains the importance of the activation energy acting as a barrier for reactants? A:It prevents most re

natita [175]

A: It prevents most reactions from occurring spontaneously.

The answer above is correct.

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3 years ago

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Which of the following is a double replacement reaction?

Gekata [30.6K]

Answer:

The answer to your question is: letter D.

Explanation:

Double replacement reaction is when the cation of one reactant replaces the metal of the other reactant and vice versa.

a. 2SO2 + O2 —> 2S03 This is a combination reaction

b. Zn + Cu(NO3)2 → Zn(NO3)2 + Cu This is a single replacement reaction.

c. 2H2O2–> 2H2O + O2 This is a decomposition reaction

d . AgNO3 + NaCl → AgCl + NaNO3 This is a double replacement reaction

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3 years ago

Most elements are ____________. The _____________ elements on the left of the stair-step line on the ______________ of Elements

Vlada [557]

Answer:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster , malleable , ductile, opposite , shiny, moderately

Explanation:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster , malleable , ductile, opposite , shiny, moderately Is the answer.

(Hope this helps can I pls have brainlist (crown)☺️)

4 0

3 years ago

How much energy will it take to raise the temperature of 75.0 g of water from 20.0°C to 55.0°C?

Hatshy [7]

Answer:

We can use heat = mcΔT to determine the amount of heat, but first we need to determine ΔT. Because the final temperature of the water is 55°C and the initial temperature is 20.0°C, ΔT is as follows:

ΔT = Tfinal − Tinitial = 55.0°C − 20.0°C = 35.0°C

given the specific heat of water as 1 cal/g·°C. Substitute the known values into heat = mcΔT and solve for amount of heat:

= heat=(75.0 g)(1 cal/ g· °C )(35.0°C) =

= 75x1x35=2625 cal

6 0

3 years ago