All categories

3 years ago

1. Hydrogen, Helium, Lithium?

Chemistry

1 answer:

Reika [66]3 years ago

6 0

Answer:

what happened to it, have the gone extinct

You might be interested in

Micronutrients can be classified based on the presence of ______ in their chemical structures. According to this classification

natali 33 [55]

Answer:

Carbon

Explanation:

Micronutrients include elements or groups needed by the body in order to survive. These elements or groups include vitamins and minerals. Micronutrients can be divided into four categories:

1. water-soluble vitamins

2. Fat-soluble vitamins

3. Macrominerals

4. Trace minerals

8 0

3 years ago

Read 2 more answers

Scientist name: ______________

nikitadnepr [17]

This is easy… like you can’t take 20 min to search this up in Googl

5 0

3 years ago

Read 2 more answers

What is an acid Define the term reactivity action What is a compound

valentinak56 [21]

Answer:

Acids are water-soluble and acidic chemical compounds, often expressed as the general formula HₓA.

6 0

3 years ago

Read 2 more answers

Complete each equation with a number that is true. 5 * _ =15

natali 33 [55]

The answer is 3. As 5 * 3 = 15.

Is there any other equations I may be able to help you with? :)

5 0

4 years ago

Read 2 more answers

How many km are in 5.6mm? 5.6x103 5.6x10-6 5.6x10-3 5.6x106

il63 [147K]

Hey there :)

Question: How many km are in 5.6mm?

=>5.6x10^3

=>5.6x10^-6

=>5.6x10^-3

=> 5.6x10^6

Answer:-

$5.6 \times 10^{ - 6}$

Explanation:-

By using the formula-

$1millimeter = \frac{1}{1000000}$

As 1 with 6 zeros, we convert it into exponential form.

$= > \frac{1}{10^{6} }$

As this above value is fraction type, we can do the reciprocal, thus, the exponent gets a negative value.

$= > 10^{ - 6}$

Now combine with given question.

$= > 5.6 \times 10^{ - 6}$

7 0

2 years ago