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
OLga [1]
2 years ago
8

Can someone help me on this one?

Chemistry
1 answer:
ryzh [129]2 years ago
3 0

Answer:

gaand mai danda lauda sanda maadarchod gu ka kida

You might be interested in
How can the law of conservation of<br> mass for a chemical reaction be expressed?
djverab [1.8K]

Answer:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

Explanation:

How does the concept of conservation of mass apply to chemical reactions? the reactants and products have exactly the same atoms. the reactants and products have exactly the same molecules. the change in the amount of matter is equal to the change in energy.

can someone help me with my qustions?

5 0
3 years ago
What are subatomic particles?​
vova2212 [387]

Explanation:

a particle smaller than an atom (e.g., a neutron) or a cluster of such particles (e.g., an alpha particle).

6 0
2 years ago
A sample of black coffee was measured to have [h3o+] = 7.94 × 10−6. what is true about this solution?
Sveta_85 [38]
Being given the hydronium (or simply the hydrogen) ion concentration (molarity), one of the easiest properties of the solution to determine is its pH. The pH of a solution indicates the acidity (or basicity) of a given solution. The typical pH range of solutions is from 1 to 14, with 7 being neutral, 1 to 6 being acidic, and 8 to 14 being basic. 

To determine the pH of a solution, the negative log (-log) of the hydronium/hydrogen ion concentration (molarity) of the solution is calculated. Thus (assuming that the given hydrogen ion concentration is in molarity (mol/L)),

             pH = -log(H^{+})          or          -log(H_{3} O^{+}
             pH = -log (<span>7.94 × 10−6 mol/L) 
             pH = 5.13

Because the pH is less than 7 (within the range 1 to 6), then the black coffee solution is acidic. </span>
6 0
3 years ago
15 POINTS!!!!!!
pickupchik [31]
He proposed the Law of Conservation of Matter, being the first to say that matter can not be created nor destroyed.
4 0
3 years ago
Read 2 more answers
How many atoms are in 5 GRAMS of Fe2O3
Llana [10]

There are two iron atoms and three oxygen atoms in each molecule of Fe2O3. So that's five atoms per molecule.

One mole of any molecular substance contains <span>6.02×1023</span> molecules. Since there are two iron atoms in each of the molecules we're considering, there will be <span><span>(6.02×1023)</span>⋅2=1.204×1024</span> iron atoms in a whole mole of them.

But we're considering 0.550 mol, so multiply by 0.550:

<span>n=(0.550</span> mol<span>)⋅<span>(3.01×1024</span></span> atoms/mol<span>)=6.62×1023</span> iron atoms.

6 0
3 years ago
Other questions:
  • Place the events in order as the temperature of a gas in a container slowly increases . I will reward brainliest
    6·2 answers
  • Need help !!!!! ASAP
    5·1 answer
  • How many different elements are in the compound sodium carbonate
    10·1 answer
  • Calculate the solubility of benzene in water at 25 c in ppm. the required henry's law constant is 5.6 bar/mol/kg and benzene's s
    6·1 answer
  • The voltage generated by the zinc concentration cell described by the line notation Zn ( s ) ∣ ∣ Zn 2 + ( aq , 0.100 M ) ∥ ∥ Zn
    14·1 answer
  • An object is dropped from a height of 150m. What's the object's terminal velocity (the velocity with which the object hits the g
    14·1 answer
  • The electronic configuration of an element is 1s2s22p6. How many valence electrons does it have?
    9·1 answer
  • A student has a balloon that looks shiny like a metal and wants to perform an experiment to determine if it contains any metal.
    12·1 answer
  • During a reaction in an aqueous solution, the concentration of bactants
    12·1 answer
  • Fountain
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!