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Elena L [17]
3 years ago
15

PLEASE ANSWER !!!

Chemistry
2 answers:
Tju [1.3M]3 years ago
8 0

Answer:

Synthesis

Explanation:

There are two reactants and one product. This only happens in synthesis reactions.

V125BC [204]3 years ago
6 0
The actual reaction to make water is a bit more complicated: 2H2 + O2 = 2H2O + Energy. In English, the equation says: To produce two molecules of water (H2O), two molecules of diatomic hydrogen (H2) must be combined with one molecule of diatomic oxygen (O2). Energy will be released in the process.
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A rock dropped in a graduated cylinder raises the level of water from 20 mL to 35 mL. The rock has a mass of 45 g. What is the d
Brut [27]
I think 15 I might be wrong
7 0
3 years ago
Need answer asap, will give brainliest!!!
Pavlova-9 [17]

D

Molecules consist of multiple atoms put together to create a new form.

5 0
4 years ago
Can someone help me? It needs to have a diagram that has arrows.
daser333 [38]

Answer: The enthalpy change for formation of butane is -125 kJ/mol

Explanation:

The balanced chemical reaction is,

C_4H_{10}(g)+\frac{13}{2}O_2(g)\rightarrow 4CO_2(g)+5H_2O(l)

The expression for enthalpy change is,

\Delta H=[n\times H_f{products}]-[n\times H_f{reactants}]

Putting the values we get :

\Delta H=[4\times H_f_{CO_2}+5\times H_f_{H_2O}]-[1\times H_f_{C_4H_{10}}+\frac{13}{2}\times H_f_{O_2}]

-2877=[(4\times -393)+(5\times -286)]-[1\times H_f_{C_4H_{10}}+\frac{13}{2}\times 0]

H_f_{C_4H_{10}=-125kJ/mol

Thus enthalpy change for formation of butane is -125 kJ/mol

5 0
3 years ago
If a flask containing one liter of water was poured into 1,000 small cubes, then each cube would contain:
erastova [34]
Every cube would contain 1 milliliter of water, or .01 liter
7 0
3 years ago
Read 2 more answers
(5.391 × 10−7) + (2.5531 × 10−6)
Alexeev081 [22]

Answer:

66.441

I hope this helps!

6 0
3 years ago
Read 2 more answers
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