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Viktor [21]
2 years ago
8

The atomic mass of an element is equal to the:

Chemistry
2 answers:
Stells [14]2 years ago
4 0

Answer:

number of protons and neutrons

Explanation:

iragen [17]2 years ago
3 0

Answer:

number of protons and neutrons.

Explanation:

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How many moles of oxygen gas are required to form 55g of carbon monoxide gas
marta [7]

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8.33 moles CO2 X. 25mol O2. 16mol CO2. = 13.0 moles

6 0
3 years ago
Given that hclo4 is a strong acid, how would you classify the basicity of clo−4?
Mandarinka [93]
As a conjugate base of a strong acid,ClO4-would be classified as having a negligible basicity. The basicity of a chemical species is normally expressed by the acidity of the conjugate acid. The basicity of an acid is the number of hydrogen ions, which can be produced by one molecule of the acid. 
8 0
3 years ago
What would be the most likely explanation if none of the tested paint samples had turned brown?
mariarad [96]

Answer:4/d

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i did this before

7 0
2 years ago
Why a finely powdered sample should be used in a melting point measurement?
lapo4ka [179]

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6 0
3 years ago
A solution of salt and water is 33.0% salt by mass and has a density of 1.50 g/ml. what mass of the salt in grams is in 5.00l of
meriva
To answer this item, we solve first for the mass of the solution by multiplying the density by the volume. That is,

      m = (density)(volume)

Substituting the known values,
    m = (1.50 g/mL)(5L)(1000 mL/1L)
      m = 7500 grams

To determine the mass of the salt in the solution, multiply the calculated mass of the solution by the decimal equivalent of the percent salt in the solution.

      m of salt = (7500 g)(0.33)
      m of salt = 2475 grams

<em>Answer: 2475 grams</em>
6 0
3 years ago
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