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3 years ago

Is boron an element a compound a heterogeneous mixture or a homogeneous mixture?

1 answer:

3 0

The answer is heterogeneous mixture because the blood cells are physically separate from the blood plasma.

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What is the correct name for the cyclic alkane shown on the right?

Soloha48 [4]

Answer: C

Explanation:

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3 years ago

Read 2 more answers

Exactly 1 mol Hg2(NO3)2 contains how many moles of Hg , N , and O ?

marin [14]

In exactly 1 mol Hg₂(NO₃)₂ , there are 2 mol Hg, 2 mol N and 6 mol O.

Since the molecular formula of Hg₂(NO₃)₂ shows that for every mole of the substance, we have 2 moles of Hg, 2 moles of N and 6 moles of O.

So, in exactly 1 mol Hg₂(NO₃)₂ , there are 2 mol Hg, 2 mol N and 6 mol O.

Learn more about number of moles here:

brainly.com/question/3935424

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2 years ago

2. What is the weight of the hydrochloric acid that fills a 144.5 mL container? The density of

hoa [83]

I don’t understand the question sorry

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3 years ago

Calculate: A. Mercury has a specific Heat Capacity of 0.14 J/goC. How much heat is needed to raise the thermometer temperature 1

kari74 [83]

Answer:

$\boxed {\boxed {\sf 56 \ Joules}}$

Explanation:

We are given the mass, specific heat, and temperature, so we must use this formula for heat energy.

$q=mc \Delta T$

The mass is 5 grams, the specific heat capacity is 0.14 Joules per gram degree Celsius. Let's find the change in temperature.

ΔT= final temperature - initial temperature
ΔT= 95°C - 15°C = 80°C

We know the variables and can substitute them into the formula.

$m= 5 \ g \\c= 0.14 \ J/ g \ \textdegree C \\\Delta T= 80 \ \textdegree C$

$q= (5 \ g )( 0.14 \ J/ g \ \textdegree C ) ( 80 \ \textdegree C)$

Multiply the first numbers. The grams will cancel.

$q= 0.7 \ J/ \textdegree C(80 \ \textdegree C )$

Multiply again. This time the degrees Celsius cancel.

$q= 56 \ J$

56 Joules of heat are needed.

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3 years ago

Question 6 How many molecules are in 4.48 liters of CO 2?

Dovator [93]

22.4 molecules are in 4.48 liters of CO 2

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3 years ago