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
Molodets [167]
3 years ago
13

Pls help i need help asap

Chemistry
1 answer:
Trava [24]3 years ago
7 0

Answer:

I think magnesium hydroxide.

Explanation:

You might be interested in
Calcola la massa (in g) di un oggetto d'oro che ha
AfilCa [17]

translate please I'm confused

Explanation:

.

3 0
3 years ago
The sink–float method is often used to identify the type of glass material found at crime scenes by determining its density. Sev
Roman55 [17]
Suecagatathqnsu gsgehxhdbbssjjzkzhs
7 0
3 years ago
List three changes of state during which energy is absorbed
brilliants [131]
"<span>Changes of state are physical changes. They occur when matter absorbs or loses energy. Processes in which matter changes between liquid and solid states are freezing and </span>melting<span>. Processes in which matter changes between liquid and gaseous states are vaporization, evaporation, and condensation."</span>
4 0
3 years ago
According to the law of conservation of matter, which statement about chemical reactions is true?
Yanka [14]

Atoms cannot be created or destroyed by chemical reactions. They just have a some bonds rearranged is all.


3 0
3 years ago
The radioactive substance cesium-137 has a half-life of 30 years. The amount At (in grams) of a sample of cesium-137 remaining a
stealth61 [152]

<u>Answer:</u> The amount of sample left after 20 years is 288.522 g and after 50 years is 144.26 g

<u>Explanation:</u>

We are given a function that calculates the amount of sample remaining after 't' years, which is:

A_t(t)=458\times (\frac{1}{2})^{\frac{t}{30}

  • <u>For t = 20 years</u>

Putting values in above equation:

A_t(t)=458\times (\frac{1}{2})^{\frac{20}{30}

A_t(t)=288.522g

Hence, the amount of sample left after 20 years is 288.522 g

  • <u>For t = 50 years</u>

Putting values in above equation:

A_t(t)=458\times (\frac{1}{2})^{\frac{50}{30}

A_t(t)=144.26g

Hence, the amount of sample left after 50 years is 144.26 g

6 0
4 years ago
Other questions:
  • Which of the following does not indicate a chemical change?
    5·1 answer
  • Chocolate candy melting in your hand is what type of heat transfer
    14·1 answer
  • What is the potential of a cell made up of Zn/Zn2+ and Cu/Cu2+ half-cells at 25ºC if [Zn2+] = 0.25 M and [Cu2+] = 0.15 M?
    5·1 answer
  • Write a definition of isotope in your own words . Please help
    12·2 answers
  • Suppose you have been given the task of distilling a mixture of hexane + toluene. Pure hexane has a refractive index of 1.375 an
    15·1 answer
  • True or false, rewrite it to make it true.
    14·1 answer
  • Aqueous hydrochloric acid will react with solid sodium hydroxide to produce aqueous sodium chloride and liquid water . Suppose 1
    11·1 answer
  • Please help me it's urgent​
    10·2 answers
  • Why could prouts idea be considered a creative thought?​
    13·1 answer
  • Which elements on the periodic table are not reactive? Why?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!