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3 years ago

Science activity 1.4.2

Chemistry

2 answers:

Tresset [83]3 years ago

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You forgot to the pic again

MA_775_DIABLO [31]3 years ago

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In the phase diagram below, point B describes the critical point. TRUE FALSE

White raven [17]

The critical point is said to be the end point of a phase diagram. The most known example is the liquid-vapor critical point, the point in a PT curve that signifies that at this point both vapor and liquid coexist. The critical point is characterized by a critical pressure and a critical temperature.

4 0

3 years ago

1. A student determines the density of water to be 0.966g/ml at a

lions [1.4K]

Answer:

The percentage error in the measurement is 2.4% 

Explanation:

The measurement made by the student is $0.966 g/cm^3$ .

But the actual value of density is $0.943 g/cm^3$

The formula to calculate percentage error is

percentage error = $\frac{(measured \ value-actual \ value)}{(actual \ value)} \times 100$

Hence percentage error in this case is given by

Percentage error = $\frac{(0.966-0.943)}{0.943} \times 100$

= $\frac{0.023}{0.943} \times 100=2.4%$

A physical quantities value will be determines by various quantities. If errors are made in measuring any of these quantities there will be error in the measurement of the final physical quantity as well.

Here density of a substance is a derived quantity determined by measuring mass and volume of that substance. If errors are made in mass and volume measurements the density value will also be erroneous.

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3 years ago

Which group contains elements that have the following characteristics:

alekssr [168]

Answer:

Explanation:

the answer to you question Is 1)

6 0

3 years ago

Read 2 more answers

Dough to which potassium bromate has been added rises better, producing a lighter, larger volume loaf.

Maslowich

2KBrO₃(s) = 2KBr(s) + 3O₂(g)
Oxygen gas is formed.
This food supplement E924 is banned in some countries.

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3 years ago

What is the name of ClF4

Contact [7]

Answer:

tetrafluorochlorate

Tetrafluorochlorate(1-)

PubChem CID60211070Molecular FormulaClF4-Synonymstetrafluorochlorate(1-) tetrafluoridochlorate(1-) F[Cl](F)(F)F ClF4(-) CHEBI:30125 More...Molecular Weight111.45 g/molDatesModify 2021-01-09 Create 2012-10-18

Explanation:

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8 0

3 years ago

Science activity 1.4.2​

Science activity 1.4.2