3 years ago

From the formula MgO how do you know that Mg is the metal?

Chemistry

1 answer:

Damm [24]3 years ago

5 0

In binary ionic compounds the name of the cation (Metal) is first, so that’s how you know.

You might be interested in

What is defined as the ability to do work or to cause changes in matter?

abruzzese [7]

Answer:

energy

Explanation:

4 0

2 years ago

What is the result when earth layers experience extension stress? Question 2 options:

Vika [28.1K]

Answer:

stretching and thinning of the Earth's crust occurs.

Explanation:

The result of the extension stress on Earth layers is the stretching and thinning of the Earth's crust occurs.

When there is a stress on the Earth's layers, the Earth's crust experiences the phenomena of stretching and thinning.

4 0

2 years ago

A flask with a volume of 250.0 mL contains air with a density of 1.164 g/L. What is the mass of the air contained in the flask?

satela [25.4K]

Answer:

convert 250.0 mL in Liters :250. 0 / 1000 = 0,25 LDensity = 1.240 g/LMass

Explanation:

6 0

2 years ago

The following equation is an example of a ______________ reaction. 2 NaCl + F2 → 2 NaF + Cl2 ???

olga55 [171]

Answer:

double replacement is the answer

3 0

3 years ago

What is the hydrogen ion concentration of a solution with pH=8.25 ?

77julia77 [94]

Answer:

The answer is

<h2> $5.62 \times {10}^{ - 9} \: M$ </h2>

Explanation:

The pH of a solution can be found by using the formula

$pH = - log( {H}^{ + } )$

where

${H}^{ + }$ is the hydrogen ion concentration of the solution

From the question

pH = 8.25

The hydrogen ion concentration of the solution is

$8.25 = - log( {H}^{ + } )$

<u>Find antilog of both sides</u>

That's

${H}^{ + } = {10}^{ - 8.25} \\ = 5.62 \times {10}^{ - 9} \: M$

We have the final answer as

$5.62 \times {10}^{ - 9} \: M \\$

Hope this helps you

5 0

3 years ago