3 years ago

How do I convert 12 g into kg in a formula

Chemistry

1 answer:

tia_tia [17]3 years ago

6 0

Formula for converting g to kg : divide by 1000

12 / 1000 = 0.012

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How many valence electrons does hydrogen need to have a full first shell?

Ket [755]

Well, the element of hydrogen only has 1 electron in its s sub shell, if it's s sub shell for the energy level of 1 were to be filled, there would need to be 2 electrons present in its shell to have a full first shell, as the s sub shell can only hold 2 electrons within it.

5 0

3 years ago

What is the largest area of a circle that can be made from a piece of thread 25.2cm long assume no knot

Zarrin [17]

Answer:

$50.2 cm^2$

Explanation:

Here we want to find the largest area of a circle that can be made from a piece of thread 25.2 cm long, assume no knot .

This means that the circumference of the circle must equal to the length of the thread, so we can write:

L = 25.2 cm

And the circumference can be written as:

$2\pi r = L = 25.2$

where

r is the radius of the circle

Solving for r, we find the radius:

$r=\frac{L}{2\pi}=\frac{25.2}{2\pi}=4.0 cm$

The area of a circle is given by the formula

$A=\pi r^2$

So in this case, we find:

$A=\pi (4.0)^2=50.2 cm^2$

7 0

4 years ago

Which substance is always a product when an Arrhenius acid in an aqueous solution reacts with an Arrhenius base in an aqueous so

svetoff [14.1K]

The answer is (2). The question only ask the production of acid reacts with base. The acid has H+ ion and base has OH- ion. When they react, the production will always contain H2O.

3 0

3 years ago

Read 2 more answers

Use the drop-down menu to complete the sentence.

Paha777 [63]

Answer:

It's called carbon dioxide.

Explanation:

$CO_{2}$ consists of 1 carbon atom bonding with two oxygen atoms.