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qwelly [4]
3 years ago
9

The atomic mass is equal to the number of

Chemistry
1 answer:
Damm [24]3 years ago
4 0

Answer:

protons + neutrons

Explanation:

Typically, the atomic mass is equal to the mass number. The mass number is simply the sum of the protons and neutrons. Therefore, to put it simply, the atomic mass is equal to the number of protons and neutrons, collectively.

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Help asap on a time crunch
marusya05 [52]

Answer:

<u>only sodium chloride compounds</u> MOST LIKELY products of the reaction between sodium metal and chlorine gas.

Correct answer - C

Explanation:

A solid sodium metal reacts with gaseous form of chlorine gas to form  a solid sodium chloride.

This formation of sodium chloride arises due to transfer of one valence electron from sodium to chlorine atom and the both atoms get stable octet electronic configuration.

As a result, an ionic compound solid sodium chloride is formed.

The chemical reaction of formation sodium chloride is as follows.

2Na(s)+Cl_{2}(g) \rightarrow 2NaCl(s)

Therefore, <u>only sodium chloride compounds</u> MOST LIKELY products of the reaction between sodium metal and chlorine gas.

7 0
4 years ago
Sea level changes occur at a rate of 10 m per 1,000 years. Regional erosion occurs at a rate of 2 m per 1,000 years. Uplift occu
PtichkaEL [24]
<h3>Answer:</h3>

The rate of sea level change is the fastest

<h3>Explanation:</h3>

To determine the process which is the fastest we need to determine the rate at which each occurs in meters per year.

Rate of sea level changes is 10 m per 1,000 years

Therefore, the rate of sea level change = 10 m ÷ 1000 years

                                                                 = 0.01 m/yr

Regional erosion occurs at 2 m per 1,000 years

Therefore, Rate in meters per seconds = 2 m ÷ 1,000 years

                                                                 = 0.002 m/year

Uplift occurs at a rate of 0.1 m per 1,000 years

Thus, rate in meters per seconds = 0.1 m ÷ 1,000 years

                                                       = 0.0001 m/yr

Therefore, the rate of sea level change is the fastest at a rate of 0.01 meter/year

4 0
4 years ago
What is the percent by mass of magnesium sulfate in MgSO4 · 7H2O?
ad-work [718]
The breakdown of mass percentage of the elements is determined by dividing molar masses to the total molar mass of the compound (246.37 g/mol). There are four elements: for Mg: 9.87%, S:13.01%, H:5.69%, 71.44%. 
5 0
3 years ago
Calculate the specific heat in J/(g·ºC) of an unknown substance if a 2.50-g sample releases 12.0 cal as its temperature changes
abruzzese [7]

Answer:

the answer is -5 J/(g.°C)

8 0
3 years ago
Extend your thinking: Why do you think the temperature does not change much during a phase change? If possible, discuss your ans
stiv31 [10]

Answer:

The rate of temperature change does not stay constant and decreases over time because the temperature difference decreases over time.

Explanation:

The temperature difference is due to Thermal Equilibrium

4 0
3 years ago
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