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
stiks02 [169]
3 years ago
7

Given, 2Ca + O2 -> 2CaO, what is the 2 located in front of calcium called??

Chemistry
1 answer:
EleoNora [17]3 years ago
3 0
Moles used to react
You might be interested in
How many udders does a cow have
Zinaida [17]
Nice question. A cow has 4 udders 
6 0
3 years ago
How is chemical balanced maintained?
NikAS [45]

Featured snippet from the web
Homeostasis also refers to the process in which an organism maintains balance of things such as body temperature, water levels and salt levels. Many chemical reactions happen in order maintain homeostasis. Hormones must be made by breaking other molecules. ... Muscles need to produce heat in order to warm the body.
4 0
3 years ago
Read 2 more answers
Are metal and non-metal elements typically ionically bonded? Explain.
victus00 [196]

<u>Answer:</u> Yes, metals and non-metals forms ionic bonds.

<u>Explanation:</u>

Ionic bond is defined as the bond which is formed by complete transfer of electrons from one atom to another atom.

The atom which looses the electron is known as electropositive atom and the atom which gains the electron is known as electronegative atom. This bond is usually formed between a metal and a non-metal.

<u>For Example:</u> Formation of sodium chloride

Sodium is a metal and is the 11th element of periodic table having electronic configuration of [Ne]3s^1

To form Na^{+} ion, this element will loose 1 electron.

Chlorine is a non-metal and is the 17th element of periodic table having electronic configuration of [Ne]3s^23p^5.

To form Cl^{-} ion, this element will gain 1 electron.

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the compound formed between sodium and chlorine atom is NaCl

Hence, metals and non-metals forms ionic bonds.

8 0
3 years ago
Use the mass and volume data to calculate the density of an unknown metal to the nearest hundredth.
11Alexandr11 [23.1K]

Answer:

8.90

Explanation:

Density = mass ÷ volume

D = 222.50 g ÷ 25.00

= 8.9

The density of the unknown metal is 8.90.

Hope that helps.

8 0
3 years ago
Read 2 more answers
How does a material get a positive charge?
adoni [48]

Answer:

positive charge comes from having more protons than electrons; negative charge comes from having more electrons than protons charge is quantized, meaning that charge comes in integer multiples of the elementary charge e

Explanation:

3 0
3 years ago
Other questions:
  • Which factor does not influence the rate of a chemical reaction? A. the concentration of reactants B. the surface area of reacta
    14·1 answer
  • Which substances will make a salt when combined? Vinegar and soda Soda and wine Detergent and ammonia Fertilizer and vinegar
    15·2 answers
  • Convert 3.01€22 molecules of O²(a) mole of O²) ,volume at S.T.P,no of Oxygen atom. (d) mass​
    5·1 answer
  • A sample of a substance has a high density, yet a low particle motion. This sample must be a
    9·2 answers
  • What is activation energy?
    6·2 answers
  • Briefly outline a procedure you could use to determine the hc2h3o2 concentration in a vinegar sample
    8·1 answer
  • Blue litmus paper is used to determine the acidity of a compound. When litmus paper detects hydrogen ions (H+), the paper turns
    11·1 answer
  • I need the answer ASAP
    6·1 answer
  • When an atom gains a valence electron, it become a (n)_____ion.
    12·1 answer
  • In order to balance the reaction, what number needs to go in front of F(2)?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!