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
Rama09 [41]
3 years ago
15

Please please please help please

Chemistry
1 answer:
denpristay [2]3 years ago
3 0
Hydrogen and oxygen! Happy holidays btw
You might be interested in
Please help me thanks so much....I’ll mark you?!?!:))))
Marrrta [24]

Answer:

chemical

Explanation:

5 0
3 years ago
Jordan needs to repeat the experiment but his teacher says that he needs to improve his design in his second experiment what sho
Margarita [4]
Just add more detail in the second experiment explain every little thing.
8 0
3 years ago
Read 2 more answers
Equation 3x-5=-2x+ 10?<br> O<br> 0<br> x= 5<br> -5 = x<br> -15 = -5x<br> -5x = 15
Harman [31]

Answer:

are those the answer choice

7 0
3 years ago
6 CO2 + 12 H2O C6H12O6 + 6 H2O + 6 O2<br><br>how many hydrogen atoms are involved in this reaction?
Romashka-Z-Leto [24]
How many hydrogen atoms are involved in this reaction? 3
7 0
3 years ago
Calculate the mass of chromium metal produced when 425.0mL of 0.25M chromium(ll) nitrate reacts with a strip of zinc that remain
Reil [10]

The balanced chemical equation for the production of chromium metal from the reaction of chromium(ll) nitrate reacts with a strip of zinc is:

3 Zn + 2 Cr(NO₃)₃ → 2 Cr + 3 Zn(NO₃)₂

This is a redox reaction, which <u>is a chemical reaction in which one or more electrons are transferred between the reagents</u>, causing a change in their oxidation states. In the proposed reaction, Cr oxidation state goes from +3 to 0, becoming metallic chromium, while Zn goes from being Zn⁰ to Zn²⁺.

<u>The mass of chromium metal produced in the above reaction will be,</u>

425.0 mL x \frac{1 L}{1000 mL} x  \frac{0.25 mol Cr(NO_{3})_{3}  }{1 L} x \frac{2 mol Cr  }{2 mol Cr(NO_{3})_{3} } x \frac{51.9961 g Cr}{1 mol Cr} = 5.52 g

So, the mass of chromium metal produced when 425.0mL of 0.25M chromium(ll) nitrate reacts with a strip of zinc that remains in excess is 5.52 g of Cr.

6 0
3 years ago
Other questions:
  • Identify the term that matches each electrochemistry definition. The electrode where oxidation occurs Cathode The electrode wher
    6·1 answer
  • In the presence of dry sulfuric acid at 100 degree c, salicylic acid can react with itself to form a water-insoluble precipitate
    12·1 answer
  • At a certain temperature, 0.740 mol SO 3 0.740 mol SO3 is placed in a 2.50 L 2.50 L container. 2 SO 3 ( g ) − ⇀ ↽ − 2 SO 2 ( g )
    8·1 answer
  • Household items that are substance or mixture
    6·2 answers
  • How many people a year die from water born diseases
    14·1 answer
  • An allergy medicine is usually stored in a cabinet at the room temperature where it’s molecules move around each other. By mista
    12·1 answer
  • Which is the best description of a cyclone?
    6·1 answer
  • Why is using dendroclimatology not always a true measure of a past climate?
    5·1 answer
  • What is the mole ratio between H2O and O2
    11·1 answer
  • SOMEONE PLEASE HURRY AND HELP ME!!! WILL GIVE 100 pts!!!!!!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!