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Cerrena [4.2K]
3 years ago
12

Which statement accurately describes the charge of the nucleus of an atom? (2 points) The nucleus can be either positively charg

ed or neutral. The nucleus never has an electrical charge. The nucleus always has a positive charge. The charge of a nucleus can change from positive to negative.
Chemistry
2 answers:
Andrew [12]3 years ago
5 0
Atoms are fundamental constituents of all matter. The following statement is correct. The nucleus always has a positive charge. This is because the nucleus contains sub-atomic particles called protons. Each proton carries a single positive charge. The nucleus is also home to sub-atomic particles called neutrons that do not possess a charge. 
Gnesinka [82]3 years ago
5 0

The nucleus always has a positive charge.

Is your answer.

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Problem: If you push an object with a constant force of 100 N over a 10-meter distance. How much energy transfer occurs on the o
Sveta_85 [38]

The energy transferred on the object is 1000 Joules.

Given:

An object on which a constant force of 100 N was applied to displace it over a distance of 10 meters.

To find:

The energy transfer occurs on the object.

Solution

The force applied on the object = F = 100 N

The displacement of the object = d = 10 m

The energy transferred on the object or work done is given by:

W = F\times d\\W=100 N\times 10 m = 1,000 J

The energy transferred on the object is 1000 Joules.

Learn more about work done here:

brainly.com/question/8119756?referrer=searchResults

brainly.com/question/3951672?referrer=searchResults

8 0
3 years ago
Describe the trend (pattern) in the numbers of mobile phone owners in the Uk since 1990.
Inessa05 [86]

Explanation:

<em><u>SMARTPHONE OWNERSHIP IS GROWING RAPIDLY AROUND THE WORLD, BUT NOT ALWAYS THE SAME.</u></em>

In emerging economies, the use of technology is still more common among the young and the educated

A farmer takes a selfie with a smartphone at a rally in Jaipur, India. (Vishal Bhatnagar/AFP/Getty Images)

A farmer takes a selfie with a smartphone at a rally in Jaipur, India. (Vishal Bhatnagar/AFP/Getty Images)

The chart shows that smartphone ownership in advanced economies is higher than in emerging economies.

Mobile technology has spread rapidly around the world. Today, it is estimated that more than 5 billion people have mobile devices, and more than half of these connections are smartphones. But growth in mobile technology so far has been unequal, either nationwide or within it. People in advanced economies are more likely to have mobile phones - smartphones in particular - and more likely to use the internet and social media than people in emerging economies. For example, a median of 76% across the 18 advanced economies surveyed have a smartphone, compared to a median of only 45% in emerging economies.

Smartphone ownership can vary by country, and even across developed economies. While about nine in ten or more South Koreans, Israelis and the Netherlands own a smartphone, the ownership rate is closer to six in ten in other developed countries such as Poland, Russia and Greece. In emerging economies as well, smartphone ownership rates vary significantly, from a high of 60% in South Africa and Brazil to just around four in ten in Indonesia, Kenya and Nigeria. Among the countries surveyed, ownership was lowest in India, where only 24% reported having a smartphone.

4 0
2 years ago
Lilah runs 6m/s . how long will it take her to run 42 meters
mamaluj [8]
42metres / 6metres which means it takes 7 seconds to run 42 metres
4 0
3 years ago
What is it called when heat and pressure change one type of rock into another
Lubov Fominskaja [6]
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3 0
2 years ago
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6) Name the following compounds<br> a. S2Cl3<br> B.KNO3<br> C.NH4Br
Snowcat [4.5K]

The name of the three compounds are Disulfur Dichloride, Potassium nitrate and Ammonium bromide respectively.

<h3>What are the names of the given compounds?</h3>

1. The name of the first compound is <u>Disulfur Dichloride</u><u>.</u>

Disulfur Dichloride is a type of inorganic compound comprise of sulfur and chlorine. There are also many other names which we can be used like sulfur monochloride, disulphur dichloride and sulphur monochloride. It is used to show C-S bonds.

2. The name of the second compound is <u>Potassium nitrate.</u>

Potassium nitrate is a compound that belong to the alkali metal nitrate. Potassium nitrate is also known as Indian saltpetre. The potassium nitrate is present in the nature but in the form of mineral. The potassium nitrate is used for making the explosives, matches, rocket fuel and fireworks.

3.The name of the third compound is <u>Ammonium bromide.</u>

Ammonium bromide is a type of compound that contains ammonium salt of hydrobromic acid. It can melt easy on providing heat. It is also soluble in water. It gives yellow colour. Ammonium bromide is the weak acid.

So we can conclude that the name of the three compounds are Disulfur Dichloride, Potassium nitrate and Ammonium bromide respectively.

Learn more about Potassium Nitrate here: brainly.com/question/16419109

#SPJ1

5 0
2 years ago
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