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3 years ago

All solids have fixed: mass volume shape all of the above

1 answer:

5 0

Answer is all of the above. Solids have definite shapes, volumes, and mass. Liquids don't have a fixed shape, but have a fixed volume. Gases have neither a fixed shape, volume, or mass

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Which of the following is the best thermal conductor?<br><br> metal<br> wood<br> paper<br> air

Ganezh [65]

Answer:

metal

Explanation:

5 0

3 years ago

Read 2 more answers

1. Four (4) is a coefficient found in which of the following

AnnZ [28]

Answer:

a. 4KCN

Explanation:

Four is a coefficient found in the chemical formula 4KCN.

KCN is potassium cyanides.

A coefficient is a number that is written before a chemical compound. It is usually used to balanced reaction expression.

Chemically such numbers indicate the number of moles or volume of that specie.

Since KCN is the only compound with 4 before it, so, the solution is KCN

8 0

3 years ago

Identify the effect of increasing acidity on the solubility of the given compounds.

Ilia_Sergeevich [38]

All the given compounds are basic on acidifying their solubility increases.

<u>Explanation:</u>

$C a_{3}\left(P O_{4}\right)_{2}$ solubility will increase, since it is basic in nature, on acidifying solubility increases.
$F e S$ being basic on acidification, the solubility increases.
$M g C O_{3}$ is alkaline in nature, it gets neutralized and there is no increase in acidity.
$M g B r_{2}$ is a salt and it shows no effect on acidification.
$A g I$ is a salt but insoluble in water and shows no effect on acidification.
$M g(O H)_{2}$ is strongly basic in nature, on acidifying the solubility increases.

4 0

4 years ago

Which of the following tool components is unlikely to present a hazard

nydimaria [60]

Gloves is the tool component which will unlikely present a hazard in this scenario.

<h3>What is Hazard?</h3>

This is referred to as potential source of harm when performing various types of activities.

Gloves will unlikely cause harm as it is used to prevent the risk of electric shock when handling electrical devices which is why it is the most appropriate choice.

Read more about Hazard here brainly.com/question/7310653

#SPJ1

6 0

2 years ago

Convert 2.54 moles of CaCl, to liters.

Agata [3.3K]

2.54 moles of CaCl occupies 56.89 liters volume

Explanation:

Each mole of any gas occupies 22.4 liters volume at STP.
STP is defined as the standard temperature and pressure and those standard values are zero degree and one atmospherics pressure
22.4 liters is a constant number as Avogadro's number which is nothing but 6.022* $10^{23}$ .
Hence, to convert 2.54 moles just multiply it with 22.4 L
That is, 22.4*2.54= 56.89 L
So, 2.54 moles of CaCl occupies 56.89 L volume space

3 0

3 years ago