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enyata [817]
4 years ago
14

What is the correct name for the ionic compound Ca2P5

Chemistry
2 answers:
maks197457 [2]4 years ago
7 0

Answer:

It is calcium phosphide.

Explanation:

Calcium phosphide is a salt like material that is composed of calcium and phosphorus in the ratio of 2:5. It has the appearance of red brown Crystalline salt.

It is use as rodenticide to kill rats.

It is also use in fire works.

Studentka2010 [4]4 years ago
3 0

Answer:

Calcium phosphorous

Explanation:

First, this compound is a mixture of the following elements:

Ca: Calcium

P: Phosphor

Now, both of these elements are united as a binary compound, the metal and a non metal. When we have a binary compound with a metal and non metal, (When the non metal is not hydrogen or oxygen) this usually becomes a salt. A bynary salt. So a binary salt, we should name like this

In this, we should name first the metal and then the non metal with the sufije ous. In this case:

Calcium phosphorous.

Then the name of this salt is that.

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An ate or ite at the end of a compound name usually indicates that the compound contains___________.
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Answer:

D

Explanation:

According to IUPAC nomenclature, a negative polyatomic ion has its name ending in 'ate' or 'ite'

As in carbonate (CO3^2-)

Arsenite (AsO3-)

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3 years ago
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In the periodic table, the period number indicates
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4 years ago
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water:
maksim [4K]
This is a simple algebraic problem, specifically for the mixture type of problem. Let x be the mass of 40% solution and y be the mass of 70% solution. The first equation would then be:

x + y = 20 --> eqn 1

The second equation would be the mass balance shown below:

(x)(0.40) + y(0.70) = 20(0.52) --> eqn 2

Rearranging eqn 1,
x = 20 - y
Substitute this to eqn 2:

(20 - y)(0.40) + y(0.70) = 20(0.52)
Solve for y,
y = 8 grams
 
Finally, solve for x.
x = 20 - 8 = 12 grams

<em>Therefore, Serena needs 12 grams of the 40% solution and 8 grams of the 70% solution.</em>
5 0
3 years ago
A spring with constant 50 N/m is stretch 0.5 m. How much EPE does it have? A. 25 J B. 12.5 J C. 50 J D. 6.25 J
Step2247 [10]

Answer:

D. 6.25 J

Explanation:

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∴ k = 50 N/m

∴ Δx = 0.5 m

⇒ EPE = 1/2*50 N/m*(0.5m)²

⇒ EPE = 6.25 N.m = 6.25 J

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A sample of gas at 15 atmospheres and 445 K is cooled to 250 K. What pressure will the gas be under after it is cooled? Round to
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