Derpywolf34 Derpywolf34

07-02-2017
Chemistry

contestada

In the reaction, 2H2 + O2 --> 2H2O, how many hydrogen molecules are needed to produce two water molecules?

a.
1
c.
3
b.
2
d.
4

Respuesta :

parnspiger parnspiger

07-02-2017

2 is the correct answer because with 2O2 molecules it balances the chemical equation.

Hope that helps

Answer Link

Otras preguntas

The Judiciary Act of 1789 provided for a Supreme Court made up of a Chief Justice and five associate justices true or false

Zoe is solving the equation 3x – 4 = –10 for x. She used the addition property of equality to isolate the variable term as shown. 3x – 4 = –10 3x – 4 + 4 = –10

Which letter has rotational symmetry? Answer Choices: 1. B 2. R 3. J 4. I

Use the substitution u = tan(x) to evaluate the following. int_0^(pi/6) (text(tan) ^2 x text( sec) ^4 x) text( ) dx

Birds and reptiles conduct _____ fertilization and lay the eggs outside of the body. a. internal b. external

How many matchsticks are required to build 100 rhombuses?

How many matchsticks are required to build 100 rhombuses?

Please solve this equation 3(4-x)=5-6x+x What is x?

Evaluate the expression 7x2y, when x = 3 and y = 4. ^ The 2 is too the power of whatever x is.

The perimeter of a triangle is 147 inches. If one side of the triangle is five more than the shortest side, and the longest side is 16 more than the shortest si