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2 years ago

Write the ion symbol for an atom with the given number of protons and electrons.

Chemistry

1 answer:

Taya2010 [7]2 years ago

8 0

The element is identified with the number of protons, and the element with 55 protons is Cs.

Since there are 54 electrons, the overall charge is +1, so the answer is $\boxed{\text{Cs}^{+}}$

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Please please please no guessing I had to type this all out. How do oceanographers define saltanily?

Gre4nikov [31]

The correct answer is D. Number of grams of salt per kilometer of water.

5 0

4 years ago

The pH of a solution is 2.0. Which statement is correct?

mamaluj [8]

Answer:

pH + pOH = 14, [H₃0⁺] [0H⁻] = 10⁻¹⁴

Explanation:

When it comes to questions involving pH, the equations used are;

[H₃0⁺] [0H⁻] = 10⁻¹⁴

This equation shows the concentration of hydroxonium ions alongside that of the hydroxide ions.

pH + pOH = 14

If the value of either the pH of the pOH is know,one can calculate the value of the other using this equation.

4 0

3 years ago

What happend to the pressure of a gas inside a container if the temperatures of the gas decreases

ludmilkaskok [199]

There is an increase in the number of collisions between particles and the walls of the container. b. There is an increase in the temperature of the gas. If the volume of a container of gas is reduced, what will happen to the pressure inside the container

4 0

3 years ago

What are the solutions to the equation x2 + 4x + 5 = 0?

dusya [7]

Answer:

-1, -4

Explanation:

$x^2+4x+5=0$

Factoring, you get:

$(x+4)(x+1)=0$

To find what x can be, you need to realize what could make this equation true. To set the left side equal to 0, either one of the terms in parentheses must be equal to 0. To do that, x must be the negative of the other term, so that they can cancel each other out. Therefore, x is -4 and -1. Hope this helps!

4 0

3 years ago

Read 2 more answers

Describe the difference between intensive and extensive propoerties. Which of the following propoerties are intensive: (a) mass;

STatiana [176]

Answer:

The properties that do not vary with the variation in the quantity of the material are called as intensive property.

While the extensive properties are those which vary with the variation in the quantity of the material.

Intensive properties:

Mass and volume

Extensive properties:

Density and melting point

Explanation:

The properties that do not vary with the variation in the quantity of the material are called as intensive property.

While the extensive properties are those which vary with the variation in the quantity of the material.

Intensive properties:

Mass and volume, as with increase in quantity of the material mass and volume increases.

Extensive properties:

Density and melting point, as they remain constant for a object or material

4 0

4 years ago