All categories

3 years ago

A__ is two or more substances that are together in the same place but are not chemically ( combined.

Chemistry

1 answer:

gayaneshka [121]3 years ago

7 0

Answer:

yeah

Explanation:

Image result for The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

You might be interested in

if you are using 657.0 grams of oxygen gas to react with calcium how many gram of calcium oxide will u product

DochEvi [55]

Answer:

The amount in grams of CaO that will be produced is 2,302.67824 grams

Explanation:

The reaction between calcium and oxygen to produce calcium oxide (quicklime) can be presented as follows;

2Ca (s) + O₂ (g) → 2CaO (s)

From the above chemical equation, we have;

2 moles of calcium, Ca, react with 1 mole of oxygen gas, O₂, to produce 2 moles of CaO

With the assumption that there is an excess amount of Ca, we have;

The molar mass of O₂ = 32 g/mol

The number of moles, 'n', of O₂ in 657.0 grams of oxygen is therefore;

The number of moles of a substance = Mass of substance/(Molar mass of substance)

∴ n = 657.0 g/(32 g/mol) = 20.53125 moles

The number of moles of O₂ in the 657.0 grams of oxygen present in the reaction, n = 20.53125 moles

1 mole of O₂ produces 2 moles of CaO, therefore, 20.53125 moles of oxygen will produce 2 × 20.53125 or 41.0625 moles of CaO

The molar mass of CaO = 56.0774 g/mol

Therefore, the mass of 41.0625 moles of CaO is given as follows;

Mass of substance = (The number of moles of a substance) × (Molar mass of substance)

The mass of CaO produced = 41.0625 moles × 56.0774 g/mol = 2,302.67824 g.

3 0

3 years ago

Magnetism is the ability of a material to be attracted by a magnet. It also include the

Iteru [2.4K]

True

Explanation:

Magnetism is the ability of a material to be attracted by a magnet or to act like a magnetic material.

Magnetism is exhibited by a wide range of substances.
In fact, the earth behaves like a bar magnet.
A magnet usually have a magnetic field round them and they exert their forces in this regions.
Magnets are used for a wide range of functions like in fans and rotors.
Substances can lose their magnetic ability when exposed to high temperatures and electrically.

Learn more:

Magnet brainly.com/question/2191993

#learnwithBrainly

8 0

3 years ago

Full net ionic equation of nitric acid and solid aluminum hydroxide please

atroni [7]

Is ionic equation . nitric acid + solid aluminium = hydroxide.

4 0

3 years ago

A 9.03 g sample of magnesium reacts completely with 3.48 g of nitrogen to form a compound of

hjlf

Answer:

12.5 g

Explanation:

12.5 g of the compound would be formed.

First, let us look at the balanced equation of reaction.

$3 Mg(s) + N_2(g) --> Mg_3N_2(s)$

3 moles of Mg is required to react with 1 mole of N2 to produce 1 mole of product.

Recall that: mole = mass/molar mass

9.03 g of Mg = 9.03/24.3 = 0.3716 mole

3.48 g of N2 = 3.48/28 = 0.1243 mole

Mole ratio of Mg/N2 = 3:1

Hence, there is no limiting reactant.

3 moles of Mg is required for 1 mole of product.

0.3716 mole of Mg will therefore require:

0.3716 x 1/3 = 0.1239 moles of product.

Molar mass of product $Mg_3N_2$ = 100.9 g/mol

Mass of 0.1239 mole $Mg_3N_2$ = mole x molar mass

= 0.1239 x 100.9 = 12.5 g

8 0

3 years ago

What is the shape of pure carbon fullerenes?

pshichka [43]

Answer:

The correct answer is Hollow Sphere.

7 0

4 years ago

A__ is two or more substances that are together in the same place but are not chemically ( combined.​

A__ is two or more substances that are together in the same place but are not chemically ( combined.