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
marshall27 [118]
3 years ago
13

How far is the milkyway to the earth

Chemistry
1 answer:
garik1379 [7]3 years ago
7 0

About 100,000 light years

You might be interested in
What is the name of Br6F10 ?
sergey [27]

Answer:

Bromine fluoride

8 0
3 years ago
Methanol (CH3OH) is an organic solvent with a boiling point of 64.5°C. How many grams of mercury(II) bromide (HgBr2, MM = 360.4)
Softa [21]

Answer:

What is the formula for elevation in boiling point?

Explanation:

The elevation in boiling point (ΔTb) is proportional to the concentration of the solute in the solution. It can be calculated via the following equation. Where, i is the Van't Hoff factor.

...

Boiling Point Elevation Formula.

Solvent Kb value (in oC.kg.mol-1)

Chloroform 3.63

Benzene 2.53

3 0
3 years ago
What is the relationship between mole, Avogadro number and mass?
weeeeeb [17]

Answer:

The mass of one mole of a substance is equal to that substance's molecular weight. ... water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams. ... Avogadro's number is a proportion that relates molar mass on an atomic ... one molecule of water (H2O), one mole of oxygen (6.022×1023 of O atoms)

5 0
3 years ago
A matrix made of wood is called a n____
VashaNatasha [74]

Answer:

What is the matrix used in lithography? Lithography is a planographic or "flat surface" method that uses a stone slab matrix. Unlike relief and intaglio printing, the matrix used in lithography is completely flat. Serigraphy is also known as "silkscreen painting".

Explanation:

i looked it up

3 0
3 years ago
1. When an acid reacts with a base, what compounds are formed? (1 point) a salt only water only metal oxides only a salt and wat
scoundrel [369]

Answer: 1) only a salt and water

An acid and base reacts together to undergo neutralization to form salt and water.

HCl+NaOH\rightarrow NaCl+H_2O

where HCl is an acid and NaOH is a base to form salt (NaCl) and water (H_2O).

Answer: 2) The formula of the hydrogen ion is often written as H^+.

All acids dissociate in water to give  H^+ ions.

Answer: 3) Arrhenius acids are substances that ionizes to yield protons in aqueous solution.

HCl\rightarrow H^++Cl^-

Arrhenius bases are substance that ionizes to yield hydroxide ions in aqueous solution.

NaOH\rightarrow Na^++OH^-

Answer: 4) A conjugate acid base pair  transfers hydrogen ion.

CH_3COO^-+H_2O\rightarrow CH_3COOH+H_3O^+

Here CH_3COO^- accepts a proton and thus act as a base and the corresponding CH_3COOH is its conjugate acid.

Answer: 5) Bronsted Lowry acid is a substance that donates protons.  Bronsted Lowry base is a substance that accepts protons.

NH_4^+ and NH_3

NH_3+H^+\rightarrow NH_4^+

NH_3 is a acid which accepts proton and thus acts as base to form conjugate acid NH_4^+.


4 0
3 years ago
Read 2 more answers
Other questions:
  • Chlorine is much more apt to exist as an anion than is sodium. this is because __________.
    8·1 answer
  • Draw all possible structures for a compound with molecular formula C4H8O that exhibits a broad signal between 3200 and 3600 cm-1
    10·1 answer
  • 3. What is the volume of a salt crystal measuring 2.44 x 10-2 m by 1.4 x 10-3 m by 8.4 x 10-3 m?
    5·1 answer
  • Write the proper word equation to express the following chemical reaction: 4Fe (s) + 3Sn(NO3)4 (aq) arrow 4Fe(NO3)3 (aq) + 3Sn (
    7·1 answer
  • I’ll mark brainliest!!!
    10·2 answers
  • True or false zoos are successful at captive breeding programs to prolong the life of a species.
    14·1 answer
  • If a gas occupies 2.3 liters at a pressure of 1.9 atm, what will be its volume at a pressure of 3.8 atm?
    5·2 answers
  • Which best explains how insects help flowering plants in reproduction?
    15·2 answers
  • What happens when you increase the pressure on the following
    9·1 answer
  • Identify the homogeneous mixture among the following:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!