All gases are considered to be ___

I NEED HELP ASAP !

Lana71 [14]

Answer:

1.

643.21g 1 mol 6.022^23

262.87 g 1 mol

= 1.4735E24 [Mg3(PO4)2]

2.

4.061x10^24 1mol 22.4 (L)

6.022^23 1mol

= 151 liters H2O2

3.

479.3g 1 mol 6.022^23

18.02g 1mol

= 1.60E25 H20 atoms

4.

80.34L 1mol 164.1

22.4L 1mol

588.6g Ca(NO3)2

5.

893.7g 1mol 22.4

44.01g 1mol

= 427 L CO2 or 427.4

6.

5.39 x 10^25 1mol 78.01

6.022^23 1mol

= 6980g Al(OH)3

hope this helps!! :)

8 0

3 years ago

What is the VSEPR notation for the molecule

Ilya [14]

VSEPR notation gives a general formula for classifying chemical species based on the number of electron pairs around a central atom. However, not all species have the same molecules.

For example, carbon dioxide and surfer dioxide are both species, but one is linear and another one is bent.

4 0

4 years ago

A mixture of 100 g of k2cr207 and 200 g of water is stirred at 60 °c until no more of the salt dissolves. the resulting solution

wolverine [178]

One example of a solution is salt water which is a mixture of water and salt. You cannot see the salt and the salt and water will stay a solution if left alone. Parts of aSolution. Solute - The solute is the substance that is being dissolved by another substance.

6 0

3 years ago

What is Darwin's name for species that do not appear to have changed for millions of years?

ioda

Since, the options have not been given the question is incomplete.

What is Darwin's name for species that do not appear to have changed for millions of years?

a.

Dinosaurs

b.

Living fossils

c.

Old souls

d.

Ancient moderns

Answer: b. Living fossil

Explanation:

In 1859 Charles Darwin proposed the term living fossil, that means a species or group of species that had not changed in terms of evolutionary context thus can be useful in tracing the extinct or previously existing forms of life. The examples of the living fossils are horseshoe crabs, ginkgo (Conifers) and tuatara. These group of animals were existed unchanged in the Ordovician, Permian, and Triassic periods respectively with few surviving species.

4 0

3 years ago

A lab director asks two students, Lydia and Damien, to each select a bottle of a concentrated weak base. When they reach the cab

algol13

Lydia and Damien should select the bottle of weak base with high molarity(M)

<h3>Further explanation</h3>

According to Arrhenius, Base is a compound which in water releases OH- ions

Electrolytes (acids or bases) with a small degree of ionization are classified as weak electrolytes

If two students, Lydia and Damien, select each bottle of a concentrated weak base, then a guide can be chosen to choose some of the solutions available in the lab :

Base compounds are usually known from their names ending in hydroxide suffixes such as NaOH, sodium hydroxide

The weak base will be partially ionized in water because the ionization degree is close to 0 or less than 1

If there is a Kb value (base ionization constant), then this shows the strength of the base. The greater the value of Kb, the greater the base strength

If there are some weak bases, then Lydia and Damien choose the highest concentration, usually indicated by the value of Molarity (M)

Because no choice solution is included, the weak base example is:

Ammonia (NH₃)

Aluminum hydroxide (Al (OH)₃)

Copper (II) hydroxide Cu (OH)₂

Mercury (II) hydroxide Hg (OH)₂

<h3>Learn more</h3>

the Brønsted theory

brainly.com/question/1916011

brainly.com/question/8921679

base would not effectively deprotonate acetylene

brainly.com/question/5613072

Keywords : weak base, select a bottle, chemical solutions

#LearnWithBrainly

8 0

3 years ago

All gases are considered to be ____.