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anygoal [31]
3 years ago
15

What are some physical charters tics scientist use to classify vertebrates

Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
7 0

Answer:

They are warm-blooded. They have a bony internal skeleton with a backbone and jaws. They breathe only with lungs. They have four limbs.

Explanation:

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0.50 mol A, 0.60 mol B, and 0.90 mol C are reacted according to the following reaction
algol [13]

Reactant C is the limiting reactant in this scenario.

Explanation:

The reactant in the balanced chemical reaction which gives the smaller amount or moles of product is the limiting reagent.

Balanced chemical reaction is:

A + 2B + 3C → 2D + E

number of moles

A = 0.50 mole

B = 0.60 moles

C = 0.90 moles

Taking A as the reactant

1 mole of A reacted to form 2 moles of D

0.50 moles of A will produce \frac{2}{1} = \frac{x}{0.50}

thus 0.50 moles of A will produce 1 mole of D

Taking B as the reactant

2 moles of B reacted to form 2 moles of D

0.60 moles of B reacted to form x moles of D

\frac{2}{2} = \frac{x}{0.6}

x = 2 moles of D is produced.

Taking C as the reactant:

3 moles of C reacted to form 2 moles of D

O.9 moles of C reacted to form x moles of D

\frac{2}{3} = \frac{x}{0.9}

= 0.60 moles of D is formed.

Thus C is the limiting reagent in the given reaction as it produces smallest mass of product.

5 0
3 years ago
Calorimetric studies show that the reaction is exothermic. 2NO2(g) N2O4(g) + 14.1 kcal. Based on this information, which one--if
FinnZ [79.3K]
In order for you to get the answer, please have in mind the following situation: To increase the molar concentration of N2O4(g), 2NO2(g) should also increase for equilibrium to occur. Now, this equation is exothermic. By <span>Le Chatelier's principle, equilibrium constant and reaction constants also come into play in terms of increasing or decreasing the temperature. After that I know you can find the answer. </span>
5 0
3 years ago
70 Points please help fast
maks197457 [2]
It is the first one keq[co]/
6 0
3 years ago
Read 2 more answers
Hello, please help tysmmmm!!
Fed [463]

Answer:

2.07

Explanation:

1870=(20.01)(c)(45.2)

1870 = 904.452c

c = 2.07 J/g C (to 3 sf]

3 0
2 years ago
Need Help Please ‍♂️
steposvetlana [31]

Answer:

Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel, and cobalt, and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone.

Gravitational force is is a force that attracts two objects with mass. We call the gravitational force attractive because it always tries to pull masses together, it never pushes them apart. Every object, including you, is pulling on every other object in the entire universe!

An example of gravitational force in the real world is the force that holds the gases in the sun. The force that causes a ball you throw in the air to come down again. The force that keeps the Earth and all of the planets in line in the proper position in their orbits around the sun.

4 0
3 years ago
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