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vovikov84 [41]
3 years ago
11

2. What do we use a meter stick to measure?

Chemistry
2 answers:
saul85 [17]3 years ago
7 0

Answer:

c. length / distance

Luba_88 [7]3 years ago
5 0

Answer:

c) lenght/distance

Explanation:

Metric units are mostly used in Europe (centimeters and meters instead of inches and feet)

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What is the density of 10cm^3 volume of water that has a mass of 10g?
prisoha [69]

Answer:

The answer is

<h2>1.0 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 10 g

volume = 10 cm³

It's density is

density =  \frac{10}{10}  = 1 \\

We have the final answer as

<h3>1.0 g/cm³</h3>

Hope this helps you

3 0
4 years ago
Read 2 more answers
Draw the structure of (z)-3-bromo-6-methyl-2-heptene. be sure the stereochemistry is drawn clearly.
Anna007 [38]

Explanation: In IUPAC, E-Z convention is given for describing the cis - trans notation to the isomers. According to CIP rule, the groups on the doubly bonded carbon atoms are given priorities based on the the atomic masses of first connected atom.

If the highest priority groups are on the same side, it is known as Z-form and if the highest priority groups are on opposite side, it is known as E-form.

We are given (Z)-3-bromo-6-methyl-2-heptene, in this the highest priority groups are bromine on one side and methyl- group on another side.

The structure is provided in the image below.

6 0
3 years ago
The weights of all elements are always compared to oxygen.<br> True <br> False
kozerog [31]

Answer:

false

Explanation:

I'm pretty sure it's compared to carbon

8 0
3 years ago
Read 2 more answers
Draw the Lewis dot structure for Ca(OH)2.
frutty [35]
Calcium has only two valence electrons in its shell. In order to agree with the octet rule it bonds with oxygen which has 6 valence electrons and with hydrogen which has 1 valence electron. Hope this answers the question. Have a nice day.
4 0
3 years ago
2-- What is the [H3O+] in a solution with [OH-] = 1 x 10-12 M?<br>​
Arte-miy333 [17]

Answer:

The answer is 0.01 M

Explanation:

The problem is solved by applying the expression for ionic product of water as follows:

Kw = [H₃O⁺] [OH⁻]

Where Kw is the ionic product of water and it is 1.10⁻¹⁴ M at⁴ 25ºC. As [OH⁻]= 1.10⁻¹² M, [H₃O⁺] will be:

[H₃O⁺]= Kw/ [OH⁻]= 1.10⁻¹⁴M/1.10⁻¹²M= 0.01 M

5 0
3 years ago
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