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Tju [1.3M]
3 years ago
12

What is the mass number of an atom that has 12 neutrons and 11 protons? 24 12 11 23

Chemistry
1 answer:
Gre4nikov [31]3 years ago
5 0

Answer:

23

Explanation:

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For the following, answer Acid, Base, Both, or Neither
Fynjy0 [20]

Answer:

1. Both

2. Acid

3. Acid

4. Base

5. Acid

6. Neither

7. Neither

8. Base

9. Acid

Explanation:

In Chemistry, a chemical compound can be either a base or an acid.

An acid reacts with metals to produce bubbles of hydrogen gas and it also reacts with carbonates while a base feels slimy to the touch. They both can change the color of a litmus paper.

Base has a sour taste while acids have a bitter taste (please do not use this characteristic to test for an acid in the laboratory)

6 0
3 years ago
How many equivalents are present in 13.5g of Al3+
gogolik [260]
Answer:

= 1.5 eq

Explanation:

One definition of an equivalent weight is that it is mass of a substance that gains or loses 1 mole of electrons.
Al3+ has lost 3 e-, so there are 3 equivalent weights in 1 mol Al3+.

1 mol Al3+ =3 eq. wts.
1 mol Al x(27 g / 1 mol)x(1 mol / 3 eq. wts.) = 9.0 g = 1 eq. wts.

13.5 g Al3 + x (1 eq.wt. / 9.0 g) = 1.5 eq
4 0
3 years ago
Earth has several ideal features which enable it to support life. MOST important is the
MakcuM [25]
I think the most important is D
7 0
3 years ago
Read 2 more answers
Which of these molecules has an overall dipole moment? O A. F2 B. H2S C. CH4 D. CO2​
adelina 88 [10]

Answer:

i think the answer is B cus i think of that

4 0
3 years ago
What's the oxidation number of Li in LiNO3
Studentka2010 [4]

+1

Explanation:

To solve this problem, we need to set up an algebraic equation. Let us first understand the meaning of oxidation number.

The oxidation number is the formal charge assigned to an atom present in a molecule or formula unit

The algebraic sum of all oxidation numbers of atoms in an ion containing more than one kind of atom is the charge on the ion.

The algebraic sum of all oxidation number of atoms in a neutral compound is zero;

   The radical NO₃ has a formal charge of -1;

 let the oxidation number of Li = x

 x + (-1) = 0

  x = + 1

learn more:

Oxidation number brainly.com/question/10017129

#learnwithBrainly

4 0
3 years ago
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