What volume measured in stp will 3.75 grams of helium gas occupy?

Answers

Answer 1
Answer: 1 mole of any gas will occupy 24dm^3 or 24000cm^3 as one mole of helium weighs 4g it will occupy just under 24000cm^3

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What can be concluded if an ion of an element is smaller than an atom of the same element?(1) The ion is negatively charged because it has fewer electrons than the atom.(2) The ion is negatively charged because it has more electrons than the atom.(3) The ion is positively charged because it has fewer electrons than the atom.(4) The ion is positively charged because it has more electrons than the atom.

In a 0.01 M solution of HCl, Litmus will be

Answers

In a 0.01 M solution of HCl, Litmus will be red. Litmus paper will turn into red in acidic conditions. Hydrochloric acid is an acid. Litmus is an indicator for acidity and alkalinity made from inchens.

Explanation:

A solution with pH less than 7 will be acidic in nature and it will change color of blue litmus into red.

For example, HCl is a strong acid as it dissociates to give hydrogen ions and chlorine ions.

A solution with pH more than 7 will be basic in nature and it will change color of red litmus into blue.

A solution with pH equal to 7 will be neutral in nature and it will not change the color any litmus paper.

Thus, we can conclude that in a 0.01 M solution of HCl, litmus will be red.

Matt's cube, after 5 trials, had an average density of 7.40 g/cm3 . His group's cube was made ofA) aluminum.
B) gold.
C) nickel.
D) zinc.

Answers

The right answer for the question that is being asked and shown above is that: "B) gold." Matt's cube, after 5 trials, had an average density of 7.40 g/cm3 . His group's cube was made of B) gold. 

its d zinc if your using usa test this dummy got me wrong trust me sis the answer is d

How should the baking of a pizza be categorized

Answers

The baking of a Pizza be Categorize as Endothermic Process

The baking of a pizza should be categorized as an endothermic process because the dough absorbs heat. An endothermic process is a method that absorbs energy from its surroundings which is habitually in the form of energy.

It can be a biochemical process like solving the salt in water or just the melting of ice. Therefore, the dough absorbs heat and it is categorized as an endothermic process.

Answer:

The correct answer is endothermic process.

Explanation:

An endothermic process is one in which the system absorbs heat from the environment. In the pizza baking process, the dough absorbs the heat from the oven. The flow of heat goes from the oven to the pizza. In this case, it is about thermal energy, if the temperature of a body increases, the thermal energy of the body also does it.

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Tap water ph 7.2 acidic

Answers

A pH of 7.2 would mean it is basic. 0-6 Acidic. 7 - Neutral. 8-14 - Basic.

Water is densest at 4°C. What is that temperature on the Kelvin scale?

Answers

Answer : The temperature on the kelvin scale is, 277.15 Kelvin

Explanation :

As we are given the temperature in degree Celsius. Now we have to need to convert the temperature from degree Celsius into kelvin.

Conversion used for the temperature from degree Celsius to Kelvin :

K=^oC+273.15\n\nK=4^oC+273.15=277.15K

Therefore, the temperature on the kelvin scale is, 277.15 Kelvin

4 + 273.15 = 277.15K

CaCl2(aq) + 2AgNO3(aq)) → Ca(NO3)2(aq) + 2AgCl(s)

Answers

Word Equation: Calcium chloride + Silver nitrate → Calcium nitrate + Silver chloride (precipitate).

Type of Reaction: Double displacement (precipitation).

The chemical equation can be converted into a word equation as follows:

Word Equation:

Calcium chloride (aqueous) + Silver nitrate (aqueous) → Calcium nitrate (aqueous) + Silver chloride (solid)

Type of Reaction:

This is a double displacement reaction, specifically a precipitation reaction. In a double displacement reaction, the cations and anions of two compounds switch places, resulting in the formation of two new compounds. In this particular case, when calcium chloride and silver nitrate are mixed, calcium nitrate and silver chloride are formed.

Furthermore, it's a precipitation reaction because one of the products, silver chloride, is insoluble in water and forms a solid (precipitate) rather than remaining in solution. The solid silver chloride is observed as a white, cloudy precipitate that settles at the bottom of the reaction vessel.

For more such information on: Word Equation

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The question probable may be;

CaCl2(aq) + 2AgNO3(aq)) → Ca(NO3)2(aq) + 2AgCl(s)

Convert this into word equation and tell what type of reaction is this?

CaCl₂ + 2 AgNO₃ = Ca(NO₃)₂ + 2AgCl

Calcium Chloride + Silver Nitrate = Calcium Nitrate + Silver Chloride

( double replacement )

hope this helps!