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
MakcuM [25]
3 years ago
9

Can you answer it please?!​

Chemistry
1 answer:
aksik [14]3 years ago
6 0

Answer:

Explanation:

1. NaCl Sodium Chloride

2. KI Postassium Iodide

3. MgF2 Magnesium  Flouride

4.MgO Magnesium Oxide

5. Na2O2

You might be interested in
What is the mass percent concentration of a solution containing 29.0 g NaCl and 115.0 mL of water? Assume a density of 1.00 g/mL
marin [14]

Answer:

Mass percent concentration: 25,2% m/m

Explanation:

The percentage mass by mass indicates the grams of solute in 100 grams of solution. We convert the ml of water into g from the density formula:

δ= m/v    m=δx v= 1 g/ml x 115 ml= 115 g

115g solution-----29 g NaCl

100g solution----x=(100g solutionx29 g NaCl)/115g solution

x=25,2173913 g NaCl

5 0
3 years ago
What do parent and daughter cells have in<br> common? Check all that apply.
Vera_Pavlovna [14]

Answer:

Mitosis is common to all eukaryotes; during this process, a parent cell splits into two genetically identical daughter cells, each of which contains the same number of chromosomes as the parent cell.During meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes.

5 0
3 years ago
Label the signals due to ha, hb, and hc in the 1h nmr spectra.
trapecia [35]
Structure along with ¹H-NMR is shown below.

Signal for Hₐ;
                     Based on multiplicity of of the peak, a Singlet peak (the only singlet peak present in spectrum) at 2.2 ppm was assigned to Hₐ. As the methyl group in not coupling with any other proton so it gave a singlet peak.

Signal for Hb;
                     Based on multiplicity of of the peak, a Quartet peak (the only quartet peak present in spectrum) at 2.4 ppm was assigned to Hb. As the methylene group in coupling with methyl group having three protons so it gave a Quartet peak.

Signal for Hc;
                     Based on multiplicity of of the peak, a Triplet peak (the only triplet peak present in spectrum) at 1.1 ppm was assigned to Hc. As the methyle group in coupling with methylene group having two protons so it gave a Triplet peak.

3 0
4 years ago
What mass of oxygen is needed to burn 4g of hydrogen, given the equation below
aleksandrvk [35]

32g of oxygen is required to burn 4g of hydrogen.

Define molecular mass.

A specific molecule's mass is expressed in daltons and is known as the molecular mass (m) (Da or u). Due to the varying isotopes of an element that they contain, multiple molecules of the same substance can have distinct molecular weights.

The total atomic mass of every atom in a molecule, calculated using a scale with hydrogen, carbon, nitrogen, and oxygen having atomic masses of 1, 12, 14, and 16, respectively. For instance, water has a molecular mass of 18 (2 + 16), which consists of two hydrogen atoms and one oxygen atom. known also as molecular weight.

In ,2H2+O2-----> 2H2O

H 2 molecules have a mass of 2 g/mol.

The molecular weight of oxygen is 32 g/mol.

When the chemical equation is balanced,

To totally react, 32 g of oxygen are needed for every 22=4 g of hydrogen.

To know more about molecular mass use link below:

brainly.com/question/21334167

#SPJ1

7 0
1 year ago
What is hydrogenation<br>help please i will mark you as a brainliest​
Salsk061 [2.6K]

Answer:

Hydrogenation means to treat with hydrogen. It's a chemical reaction between molecular hydrogen and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds.

Hope this helps!

5 0
4 years ago
Read 2 more answers
Other questions:
  • According to collision theory, which condition(s must be met in order for molecules to react?
    6·1 answer
  • Lithium, is used in dry cells and storage batteries and in high temperature lubricants, it has two naturally occurring isotopes,
    10·1 answer
  • In a combustion reaction, 46.0g of ethanol reacts with 96.0 g of oxygen to produce water and carbon dioxide. If 54.0 g of water
    12·1 answer
  • What mass of sulfur would have precisely 4.7x10^22 atoms of sulfur?
    9·2 answers
  • (II) To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice
    15·1 answer
  • Using the Periodic Table, predict which elements will have similar chemical properties or reactivity
    14·1 answer
  • Both sound waves and light waves are?
    7·2 answers
  • Select the statements that correctly describe the term viscosity. a.The viscosity of each substance is a constant value that wil
    9·1 answer
  • Write your best app​
    13·1 answer
  • Name the compound: PbF3
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!