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Otrada [13]
3 years ago
13

What makes up an isotope’s mass number?

Chemistry
1 answer:
Lisa [10]3 years ago
3 0

Answer:

A

Explanation:

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63. Sewage sludge is applied as a fertilizer to agricultural land. The heavy metal cadmium, Cd, is often found in small amounts
Anika [276]

Answer:

B

Explanation:

In the attached file

3 0
3 years ago
Is 2 KNO₃ + H₂CO₃ → K₂CO₃ + 4 HNO₃ a balanced equation
krok68 [10]

Hey there!

The elements in this equation are K, N, O, H, and C.

Let's count how many of each are on each side to see if it is balanced.

K: 2 on the left, 2 on the right.

<em>N: 2 on the left, 4 on the right. </em>

<em>O: 9 on the left, 6 on the right. </em>

<em>H: 2 on the left, 4 on the right. </em>

C: 1 on the left, 1 on the right.

Notice that there are different amounts of N, O, and H on the left side and the right side.

This means that the equation is not balanced.

Hope this helps!

6 0
3 years ago
In all states of matter, atoms of all elements A. bind together the same way. B. are in constant motion. C. are the same size. D
kolezko [41]
B: Are in constant motion
5 0
4 years ago
Read 2 more answers
A balanced chemical equation is a direct presentation of the ___________.
Lisa [10]

Answer:

The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side.

Explanation:

How do you balance equations?

In general, however, you should follow these steps:

1. Count each type of atom in reactants and products.

2. Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances.

3. Repeat steps 1 and 2 until the equation is balanced.

5 0
3 years ago
Please help will give brainliest
DochEvi [55]

Answer:

Number of moles = 1.57 mol

Explanation:

Given data:

Mass of propanol = 94.1 g

Molar mass of propanol = 60.1 g/mol

Number of moles of propanol = ?

Solution:

Formula:

Number of moles = mass/molar mass

by putting values,

Number of moles = 94.1 g/ 60.1 g/mol

Number of moles = 1.57 mol

5 0
4 years ago
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