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
brilliants [131]
3 years ago
10

WHICH CHEMICAL EQUATION IS BALANCED? A.H2O--->H2+202 B.2H20--->2H2+02 C.2H20---->H2+202 D.H20--->2H2+202

Chemistry
2 answers:
NeX [460]3 years ago
7 0
A.
the left side - 2 atoms of hydrogen, 1 atom of oxygen
the right side - 2 atoms of hydrogen, 4 atoms of oxygen
not balanced

B.
the left side - 4 atoms of hydrogen, 2 atoms of oxygen
the right side - 4 atoms of hydrogen, 2 atoms of oxygen
balanced

C.
the left side - 4 atoms of hydrogen, 2 atoms of oxygen
the right side - 2 atoms of hydrogen, 4 atoms of oxygen
not balanced

D.
the left side - 2 atoms of hydrogen, 1 atom of oxygen
the right side - 4 atoms of hydrogen, 4 atoms of oxygen
not balanced

The answer is B.
Alchen [17]3 years ago
3 0

Answer:

answer B

Explanation:

You might be interested in
Two children on a seesaw are able to balance perfectly while on Earth.would they still be balanced if you saw was brought to the
Setler [38]

Answer:

C

Explanation:

Because on the moon you are basically weightless and your mass would stay the same

3 0
3 years ago
What is true about energy?
xeze [42]
The correct answer is option A. Energy cannot be created during an ordinary chemical reaction. There is no such thing as an ordinary chemical reaction. Energy cannot be created or destroyed this is according to the law of conservation of energy. It can only be transformed from one form to another form.
7 0
3 years ago
Read 2 more answers
Information gathered by a scientist about the toxicity of chemical X and chemical Y showed that they had individual safe limits
timofeeve [1]

Answer:

Synergism

Explanation:

This is an example of Synergism. Synergism is nothing but working out of two medicines together.

Examples of medical synergies are when doctors treat microbial heart infections with ampicillin and Gentamicin and when people with cancer undergo radiation and chemotherapy or more than one chemotherapy drug at a time.

6 0
3 years ago
What is the total electrons needed for an Octet of SiCL4?
Juli2301 [7.4K]

Answer:4 pairs of electrons

Explanation: SiCl4 is a tetrahedral because it has four pairs of electrons.

4 0
3 years ago
1. In what ways does an organism’s mode of reproduction impact the diversity of its offspring? (Asexual vs. Sexual)
Katen [24]

Answer:

<u>Asexual reproduction</u> = An exact copy of the reproducer

<u>Sexual reproduction</u> = Genetic variation into the organism if a random mutation in the organism's DNA is transmitted to offspring.

Explanation:

Example of Asexual Reproduction diversity - A red apple has apple seeds. You plant the red apple seeds, and it grows up to be no different than the apple before it.

Sexual reproduction Example of diversity -Two parents are of different ethnicities. The female gets pregnant, but because of the different genetics from both of the parents, the child will inherit their genetics + some random mutation in the DNA.  

This impacts the diversity of the offspring because it can be an exact copy of the reproducer (Asexual), or significantly different with some similarities if the mode of reproduction was sexual.

I really hope this helps you! Please tell me if it did or not. Good luck with your assignment/exam/quiz!

(OMG TYSM FOR BRAINLIEST!! :D)

7 0
2 years ago
Read 2 more answers
Other questions:
  • What does the chemical formula CaCI2 show about the compound or represents?
    12·1 answer
  • Provide at least three indicators of a chemical change that are present in burning a piece of paper.
    6·1 answer
  • When a strip of magnesium metal is placed in an aqueous solution of copper(II) nitrate, elemental copper coats the surface of th
    10·1 answer
  • Which of these illustration shows isotopes of the elements boron b
    9·1 answer
  • Which substance is an inorganic compound
    8·1 answer
  • Oque é um hibrido de ressonancia?
    10·2 answers
  • Which reactant (X) is missing from the equation shown?<br> X+ PO4 → H3PO4
    5·1 answer
  • Can someone help me pls?<br> Zr + O ⇒ <br> B + O ⇒<br> Zn + C ⇒ <br> Co + I ⇒ <br> Mg + Br ⇒
    12·1 answer
  • 50 J of work was done on a system, as a result of which 29 J of heat energy was removed from it. How would this affect the inter
    13·2 answers
  • Everything in the world is made of matter except you??<br><br> TrueFalse
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!