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3 years ago

Since a element has a pH number of 7, meaning it is __. That element can be classified as neither a or a _.

2 answers:

6 0

- - Since a element has a pH number of 7, meaning it is neutral. That element can be classified as neither a acid or a base.
- - No this is not balanced.
- - This is because its no balanced considering the o has 6 sides and 4 has one.
- - Because of this it is not true based on the com (conversion of mass) This law was made by Antoine Lavoisier and using his law I was able to know that it was not a balanced equation.

Lilit [14]3 years ago

4 0

If a number has a pH of 7, it is neutral, therefore, one blank is neutral.

1. Neutral

Therefore, the element is not an acid or a base.

2. Acid, Base

That is NOT a balanced equation because:

c=4 o=2
c=4 o = 6

Not balanced, o has 6 and one side it has 4. It contradicts the Law of conversation of mass.

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FinnZ [79.3K]

The answer is option E. All of the above

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3 years ago

How many atoms of oxygen are in a molecule of glucose (C6H12O6)?

ICE Princess25 [194]

Answer:

There are 6 oxygen atoms.

Explanation:

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hope this helps

8 0

2 years ago

How many grams are in 0.220 mol of Ne?

kumpel [21]

Answer:

4.44 g Ne

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis

Explanation:

Step 1: Define

0.220 mol Ne

Step 2: Identify Conversions

Molar Mass of Ne - 20.18 g/mol

Step 3: Convert

$0.220 \ mol \ Ne(\frac{20.18 \ g \ Ne}{1 \ mol \ Ne} )$ = 4.4396 g Ne

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

4.4396 g Ne ≈ 4.44 g Ne

3 0

3 years ago

Read 2 more answers

A beaker contains 20.0 ml of a 50.0 g/L solution. What will the new concentration be if you add 40.0 mL of water?

Ronch [10]

Answer:

moles SO42- = 0.0500 L x 0.20 M=0.010

moles Ba2+ = 0.0500 L x 0.10 M = 0.0050

Ba2+ + SO42- = BaSO4 (s)

moles SO42- in excess = 0.010 - 0.0050=0.0050

total volume = 100 mL = 0.100 L

[SO42-]= 0.0050/0.100= 0.050 M

[Na2SO4] = 2 /2 = 1 M

moles Na2SO4 = 2 M x 0.500 L = 0.500

mass Na2SO4 = 0.500 x 142 g/mol=71.0 g

moles MgBr2 = 46 /184 =0.25

moles Br- = 0.25 x 2 = 0.50

[Br-]= 0.50 / 0.50 L = 1 M

8 0

3 years ago

Maize is also called a. wheat. b. rye. c. corn. d. potato.

anastassius [24]

The answer is c. corn

7 0

2 years ago

Since a element has a pH number of 7, meaning it is ______. That element can be classified as neither a ____ or a _____.

Since a element has a pH number of 7, meaning it is __. That element can be classified as neither a or a _.