1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vredina [299]
3 years ago
6

What is a chemical change?

Chemistry
1 answer:
iris [78.8K]3 years ago
4 0

Answer:

D. A reaction or change in a substance that results in a different substance

Explanation:

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

You might be interested in
Abbreviation for mole
Sedbober [7]

Answer:

Maybe mol

Explanation:

6 0
3 years ago
(20 POINTS!!) please help me write a short reference page on chemical bonds (anything helps)
Shtirlitz [24]

Explanation:An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms. ... Ionic bonds form between a metal and a nonmetal. Covalent bonds form between two nonmetals.      

 

7 0
3 years ago
What is mineral in science?​
Klio2033 [76]

Answer:

minerals

Explanation:

defines a mineral as "a naturally occurring inorganic element or compound having an. orderly internal structure and characteristic chemical composition, crystal form, and physical. properties." Minerals differ from rocks, which are naturally occurring solids composed of one or more minerals.

6 0
3 years ago
Definition of Absorption
adell [148]
<span>the process or action by which one thing absorbs or is absorbed by another.</span>
5 0
3 years ago
Read 2 more answers
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
Other questions:
  • The top of the syringe is a circle. You need to
    14·1 answer
  • In the lab vinegar acetic acid was mixed with baking soda sodium bicarbonate to form dioxide gas and sodium acetate. What are th
    5·1 answer
  • Is it possible to start with 5g of one chemical and 10g of another chemical and make 15g of a third chemical?
    14·1 answer
  • Question 25 of 26
    13·1 answer
  • A student travels in a car from Philadelphia for 12 hours before they reach their destination in Chicago. They measured the dist
    5·1 answer
  • 150.0 mL of a gas is collected at 50 kPa, What will the volume be at 125kpa?
    6·1 answer
  • Helppp me faststttttt plzzzzz freee points
    15·2 answers
  • If two objects are experiencing the same amount of force, does that mean they will both experience the same amount of accelerati
    13·1 answer
  • PLEASE HELP NEED ANSWER FAST
    5·1 answer
  • How many moles of O2 are required to react with 2.4 mol of H2 ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!