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Musya8 [376]
2 years ago
10

Question 9 Which statement is true: The atomic mass of an atom is equal to the number of neutrons in the nucleus The atomic numb

er of an atom is equal to the number of neutrons in its nucleus The atomic weight of an atom is the sum of neutrons plus electrons The atomic weight of an atom is the sum of its protons and neutrons
Geography
1 answer:
inn [45]2 years ago
8 0

Answer:

The atomic weight of an atom is the sum of its protons and neutrons

Explanation:

The weight of an atom is dominated by the amount of matter contained in the dense and tiny nucleus of an atom. In the nucleus, protons and neutrons are found. Protons are massive nuclear particles that are positively charge. Neutrons are also massive and they carry no charges.

The atomic weight is given as the sum of the protons and neutrons. Electrons have little to no weight.

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= 7x 3= 3x + 20, what is the value of x? 4 10 7 5
Snowcat [4.5K]

Answer: 4

Explanation:

Assuming the formula was meant to be:

7x + 3 = 3x + 20

X will be:

7x + 3 = 3x + 20

7x - 3x = 20 - 3

4x = 17

x = 17/4

x = 4.25

x = 4

3 0
2 years ago
Match the country in column 1 with its colonial history in column 2.
kompoz [17]

Answer:

Portugal ⇒ Ruled east of the line of demarcation

After the New World was rediscovered by the European powers and saw competition between the Spanish and the Portuguese, Pope Alexander VI came up with a Line of Demarcation to divide the New World. Portugal was to rule over every land east of the line which is why they colonized Brazil.

Russia ⇒ Controlled what is Alaska today.

Russia controlled what is Alaska today but then decided to sell it to the United States rather than risking the British taking it by forced and adding it to Canada.

Britain ⇒ Controlled the area of today's eastern United States.

Britain ruled the eastern part of today's United States and it was here that they established the colonies that became the first states of the United States of America when these colonies defeated the British in the American Revolution.

Spain ⇒ Ruled west of the land of demarcation

As explained above, Pope Alexander VI came up with a Line of Demarcation. This allowed Spain to rule lands west of this line such that they gained colonies such as Mexico and countries to the west of South America.

8 0
2 years ago
Most communities are built near<br> B. Seacoasts<br> A. Wood<br> C. Mountains<br> D. Water
Tomtit [17]

Answer:

D

Explanation:

Before setting up a settlement water is on of the factors to consider

7 0
2 years ago
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lesya [120]
It is d because if there is more birth and no death then the population will surely grow. Hope I’m the brainliest!
5 0
3 years ago
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katen-ka-za [31]

Answer:

B. Technological

Explanation:

Improved sanitation and medicine relates to technological advances

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