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
Svetradugi [14.3K]
3 years ago
10

HELP NOW BRAINLIST AND 15 POINTS!!!!! I'M TIMIED!!!!!

Chemistry
1 answer:
goblinko [34]3 years ago
6 0

Answer:

Explanation:

1 =  The given chemical reaction does not follow the law of conservation of mass because,

2 = Four hydrogen atoms are present in reactant side and two hydrogen atoms are present in product side.

3 = 1 ) The given chemical reaction does not follow the law of conservation of mass because,

CH₄ + O₂     →    CO₂  + H₂O

16 g  + 32 g       44 g  +  18 g

 48 g                        62 g

Law of conservation of mass:

This law stated that mass can not be created or destroyed in chemical reaction. It just changed from one to another form.

For example:

C₂H₄   +   3O₂   →    2CO₂   +  2H₂O

28 g   + 96 g    =      88 g  +  36 g

   124  g           =      124 g

You might be interested in
What is the name of this molecule?
Sunny_sXe [5.5K]

Answer:

D. cis-2-pentene (looks like a frying pan)

Explanation:

pentane looks lihe the letter M

2-methylpentane looks like YV

2-pentyne looks like an upside down L

8 0
2 years ago
Before a bond breaks in a chemical reaction, what happens
Assoli18 [71]
They have to form a chemical bond in order to brake them down first
8 0
3 years ago
At constant pressure, how are the temperature and volume of a gas related?
RideAnS [48]

Answer:

The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure (Charles's law). The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (Boyle's law).

4 0
2 years ago
What is chemical reaction?<br>​
Aliun [14]

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction

3 0
2 years ago
Read 2 more answers
Which of the following is the correct chemical formula for Ca and F? CaF Ca2F CaF2
yawa3891 [41]

Answer:

CaF2

Explanation:

Calcium fluoride is a solid formed by the chemical combination of Calcium (Ca) and Fluorine (F). Two molecules of fluorine (F2) and one molecule of Calcium (Ca) are needed to form the Calcium Fluoride molecule.

An ionic bond is formed between the Calcium and Fluorine atoms i.e. electrons are transferred from calcium atoms to fluorine atoms. The calcium ion is a cation with formula; Ca2+ while fluorine is an anion with formula; F-. Hence, it takes two molecules of Fluorine ion (F-) to form a relatively stable and neutral molecule with 1 molecule of Calcium ion (Ca2+).

4 0
3 years ago
Other questions:
  • Which substance can be broken down by chemical means?
    12·2 answers
  • Which of the following is a suggested practice to invite families to participate in decision-making and goal-setting for their c
    13·2 answers
  • Why is energy required to break a covalent bond
    13·2 answers
  • Dominic made the table below to organize his notes about mixtures,
    12·1 answer
  • Hemoglobin is a large protein molecule that is responsible for carrying oxygen through the blood. Iron ions are a relatively sma
    15·1 answer
  • Predicting nuclear stability is important when determining whether or not a nuclear reaction can take place spontaneously.Use th
    12·1 answer
  • How much energy is evolved during the formation of 98.7 g of Fe, according to the reaction below? Fe2O3(s) + 2 Al(s) → Al2O3(s)
    14·1 answer
  • If 5.0mL of HC2H30 require 4.96mL of 0.9581 M NaOH to just consume the HC2H302, what is the
    9·1 answer
  • How many grams of nicotine (C10H14N2) are in a 0.125 mol sample of nicotine?
    7·1 answer
  • Which describe beta decay? check all that apply. in beta decay, a proton becomes a neutron and a positron. in beta decay, a neut
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!