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
Aleks04 [339]
3 years ago
9

What is the atomic number? what is the atomic mass (a.k.a. mass number?

Chemistry
1 answer:
Oksanka [162]3 years ago
3 0
Is the number of protons in an atom, or the total positive charge of an atom.
You might be interested in
A force of 20 N acts upon 5 kg block caculate the accerleration of the object
Vedmedyk [2.9K]

Answer:

\boxed{\text{4 m $\cdot$ s$^{-2}$}}

Explanation:

F = ma

a = \dfrac{F}{m} = \dfrac{\text{20 N}}{\text{5 kg}} \times \dfrac{\text{1 kg$\cdot$ m $\cdot$ s$^{-2}$}}{\text{1 N}} = \text{4 m $\cdot$ s$^{-2}$}\\\\\text{The acceleration of the object is } \boxed{\textbf{4 m $\cdot$ s$^{\mathbf{-2}}$}}

 

4 0
3 years ago
What does applied chemistry have to do with making ice cream?
Lapatulllka [165]

Well you have to mix chemicals which caused a chemical reaction. When you mix salt and ice the freezing point of liquid changes. the ice gets colder

6 0
3 years ago
Read 2 more answers
The diagram below shows an electromagnet. Using your scientific knowledge, state the device that is used to measure the potentia
weeeeeb [17]

Voltmeter is the device that is used to measure the potential difference across the battery.

<h2>What are the usage of voltmeter?</h2><h3 /><h3>Usage of Voltmeter</h3>

Voltmeter is an instrument that measures voltages of both direct and alternating electric current. On a scale of voltmeter usually graduated in volts, millivolts (0.001 volt), or kilovolts (1,000 volts).

Voltmeter is connected in parallel form. It has a high resistance so that it takes negligible current from the circuit so we can conclude that Voltmeter is the device that is used to measure the potential difference across the battery.

8 0
3 years ago
Conclusion on friendship​
Black_prince [1.1K]

Explanation:

<h3>Conclusion. A good friendship is very difficult to come across. That is why we should appreciate this divine relationship that is based on understanding and feelings. ... A true friend is one of the most precious possessions that one can have in his life.</h3>

Hope it's helpful for Yuh bro!!

3 0
2 years ago
Read 2 more answers
Which compound will give positive Tollen's test?
Andrew [12]

Tollen's test is an organic test that determines whether the sample is an adehyde or not. When aldehydes are present, the reaction forms a silver compound which refers to the other name of Tollen's as silver mirror test. The aldehyde among the choices is C. pentanal
5 0
3 years ago
Other questions:
  • Mass is measured against a standard using a
    10·2 answers
  • If the net force on an object is 0 N, the forces are considered unbalanced. :true or false?​
    6·1 answer
  • 16. A baseball has a mass of 1500 grams and displaces 500 ml. of water. What is<br> it's density?
    13·1 answer
  • As the organsims develops, its cells become -------
    11·1 answer
  • It is important to get information about a flight from many parts of the airplane.
    14·1 answer
  • In terms of pH what would happen if you mixed vinegar with a solution of ammonia. What type of product will form ?
    14·1 answer
  • PLS HELP ASAP! I WILL GIVE BRAINLIEST!! Which of the following explains the conservation of mass during cellular respiration? (4
    9·1 answer
  • The ______ are new substances taht are created following a chemical reaction?
    10·1 answer
  • Plz help it over science stuff
    15·2 answers
  • What does it mean if a substance is insoluble? A. It does not dissolve. B. It dissolves in another substance. C. It makes new mo
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!