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
ivanzaharov [21]
3 years ago
7

Label the following changes as Physical or

Chemistry
1 answer:
Leno4ka [110]3 years ago
5 0

Answer:

17

Two clear liquids mix and form a

white solid

18.chemical

A pot of water begins to

boil

19.Physical

the rest im usure on.

You might be interested in
Please help me I need these answers
Vladimir [108]

Answer:

i am rrly bad at chemistry srry fffdfhdhdgduehgfhfhdhhfhdhdhdhdhdudhd

7 0
2 years ago
Denumiți ionul produs în soluție atunci când de adaugă acizi în apa​
svet-max [94.6K]

Answer:

Ionul de hidroniu este un factor important atunci când avem de-a face cu reacții chimice care apar în soluții apoase. Concentrația sa în raport cu hidroxidul este o măsură directă a pH-ului unei soluții. Se poate forma atunci când un acid este prezent în apă sau pur și simplu în apă pură. Formula chimică este H3O +

Explanation:

The hydronium ion is an important factor when dealing with chemical reactions that occur in aqueous solutions. Its concentration relative to hydroxide is a direct measure of the pH of a solution. It can be formed when an acid is present in water or simply in pure water. It's chemical formula is H3O+

marke me as brainliest  please

3 0
3 years ago
How can we reduce the production of harmful gases that form acid rain
oksano4ka [1.4K]

Answer:

A great way to reduce acid rain is to produce energy without using fossil fuels. Instead, people can use renewable energy sources, such as solar and wind power. Renewable energy sources help reduce acid rain because they produce much less pollution.

7 0
3 years ago
Review the equation below. 2KClO3 mc012-1.jpg 2KCl + 3O2 How many moles of oxygen are produced when 2 mol of potassium chlorate
Vlada [557]
Stoichiometry <span>of the reaction:

</span><span>2 KClO</span>₃<span>    =    2 KCl  +   3 O</span>₂
  ↓                                      ↓
    
2 mole KClO₃ ----------> 3 mole O₂
2 mole KClO₃ ----------> ?

KClO₃ = 2 * 3 / 2

KClO₃ = 6 / 2

= 3 moles de KClO₃

hope this helps!
4 0
3 years ago
Read 2 more answers
If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the water and the calorimeter incr
Alinara [238K]

Answer:

The value of  the heat capacity of the Calorimeter  C_c = 54.4 \frac{J}{c}

Explanation:

Given data

Heat added Q = 4.168 KJ = 4168 J

Mass of water m_w = 75.40 gm

Temperature change = ΔT = 35.82 - 24.58 = 11.24 ° c

From the given condition

Q = m_w C_w ΔT + C_c ΔT

Put all the values in above equation we get

4168 = 75.70 × 4.18 × 11.24 +  C_c × 11.24

611.37 =  C_c × 11.24

C_c = 54.4 \frac{J}{c}

This is the value of  the heat capacity of the Calorimeter.

7 0
3 years ago
Other questions:
  • a chemist needs to make 1000mL of a 30% alcohol solution by mixing 25% and 55% solution. How much of each should she use?
    15·1 answer
  • Which lists the elements in order from least conductive to most conductive?
    15·2 answers
  • Word equations for the combustion of wood, natural gas(methane) and ethanol
    5·1 answer
  • Which electrons are the valence electrons of the atom?<br> Helpppppppp
    7·1 answer
  • Question 7 of 32
    14·2 answers
  • hat is the pressure of CO(g) in equilibrium with the CO2(g) and O2(g) in the atmosphere at 25 ????C? The partial pressure of O2(
    7·1 answer
  • Calculate the concentration of H3O+ in a solution that contains 5.5 × 10-5 M OH- at 25°C. Identify the solution as acidic, basic
    13·1 answer
  • ¿que ocurre con el electrón de Valencia del K+ en el compuesto bromuro de potasio KBr​
    5·1 answer
  • What term is used to describe the building blocks of life
    12·1 answer
  • What is the lead concentration of a saturated solution of lead(II) sulfate containing 0.020 M Na2SO4? Ksp for PbSO4 = 6.3x10-7.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!