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
Delvig [45]
3 years ago
13

What is a chemical equation

Chemistry
2 answers:
crimeas [40]3 years ago
5 0

Answer:

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulas.

Explanation:

Example- Zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas. This equation is written as: Zn+H2SO4→ZnSO4+H2.

kvasek [131]3 years ago
3 0

Answer:

"Symbolic representation of a chemical reaction in the form of symbols and formulae"

You might be interested in
PLZ HELP For the reaction: 2NO2(g) → N2O4(l),
Furkat [3]

Answer: \Delta H_{rxn}=-20kJ/mol-(+66kJ/mol)

Explanation:

Heat of reaction or enthalpy change is the energy released or absorbed during the course of the reaction.

It is calculated by subtracting the enthalpy of reactants from the enthalpy of products.

\Delta H=H_{products}-H_{reactants}

\Delta H = enthalpy change = ?

H_{products} = enthalpy of products

H_{reactants} = enthalpy of reactants

For the given reaction :

2NO_2(g)\rightarrow N_2O_4(l)

\Delta H=H_{N_2O_4}-2\times H_{NO_2}

\Delta H=-20kJ/mol-(+66kJ/mol)

6 0
3 years ago
What type of chemical reaction does lithium hydroxide belong to?
wlad13 [49]

Answer:

Reaction of lithium with water

Explanation:

The resulting solution is basic because of the dissolved hydroxide. The reaction is exothermic, but the reaction is slower than that of sodium (immediately below lithium in the periodic table).

7 0
3 years ago
How many grams of Cl are in 495 g of CaCl2?
ICE Princess25 [194]
Refer to picture attached for solution

5 0
3 years ago
Read 2 more answers
List the number of protons, neutrons, and electrons in Iodine-127. (atomic number is 53)
Over [174]
53 neutrons 
53 - 127=74 protons/electrons
3 0
4 years ago
Read 2 more answers
What type of bond holds different water molecules together
lukranit [14]
Polar covalent bonds
5 0
3 years ago
Other questions:
  • Which of the answer choices compares a chemical property of two substances? A.Iron is harder than gold.
    10·2 answers
  • In what type of solution was the human cell placed​
    5·1 answer
  • Cold packs are designed to become very cold when activated. When the pack is activated, a chemical reaction occurs to make the t
    14·2 answers
  • You need 100.00 mL of H20 and 5.00 mL of
    6·1 answer
  • Suppose you will fill a glass with ice cubes. When the ice cubes melt, is the glass still full
    9·1 answer
  • WHAT IS THE START TEMP. WHEN BAKING SODA AND VINEGAR ARE MIXED<br> NEED ANSWER RIGHT AWAY
    11·2 answers
  • What is the relationship when as the independent variable increases the dependent variable decreases?
    8·1 answer
  • How many moles of s atoms are in 1 mol of CaSO4
    12·1 answer
  • The _____ has an oxygen atom single-bonded to hydrogen and single-bonded to a carbon-containing group.
    12·1 answer
  • Landfills produce methane, which is a greenhouse gas and contributes to global warming. please select the best answer from the c
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!