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
ra1l [238]
3 years ago
8

Which of the following double-replacement reactions will occur?

Chemistry
1 answer:
son4ous [18]3 years ago
4 0

NaBr(aq) + AgNO3(aq) →NaNO3(aq) + AgBr(s)⇒ double-replacement reactions will occur

<h3>Further explanation</h3>

Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product

A double replacement reaction will occur if one or both of the products is an insoluble precipitate, a liquid, or a gas

To predict whether this reaction can occur or not is one of them, the precipitation reaction. A precipitation reaction occurs if two ionic compounds which are dissolved reacted to produce one of the products of the ion compound does not dissolve. Formation of these precipitating compounds that cause reactions can occur

Solubility Rules:

• 1. soluble compound

All compounds of Li +, Na +, K +, Rb +, Cs +, and NH4 +

All compounds of NO₃⁻ and C₂H₃O₂⁻

Compounds of Cl−, Br−, I− except Ag⁺, Hg₂²⁺, Pb²⁺

Compounds of SO₄²⁻ except Hg₂²⁺, Pb²⁺, Sr²⁺, Ba²⁺

• 2. insoluble compounds

Compounds of CO₃²⁻ and PO₄³⁻ except for Compounds of Li +, Na +, K +, Rb +, Cs +, and NH₄ +

Compounds of OH− except Compounds of Li +, Na +, K +, Rb +, Cs +, NH₄⁺ , Sr²⁺, and Ba²⁺

NaBr(aq) + AgNO3(aq) →NaNO3(aq) + AgBr(s)⇒ occur

NaBr(aq) + Ca(NO3)2(aq) → NaNO3(aq) + CaBr₂(aq)⇒not occur

NaBr(aq) + Al(NO3)3(aq) →NaNO3(aq) + AlBr3(aq)⇒not occur

NaBr(aq) + KNO3(aq) →NaNO3(aq) + KBr(aq)⇒not occur

You might be interested in
How are the environments of a desert and a tundra different?
Alexeev081 [22]

Answer:

A tundra is less humid than a desert

Explanation:

6 0
2 years ago
Read 2 more answers
What mass of naturally occurring uranium is closer to 238 u , 235 u or 234 u?
Liono4ka [1.6K]
Uranium<span> (</span>92U<span>) is a </span>naturally occurring<span> radioactive element that has no stable isotopes but two primordial isotopes (</span>uranium-238<span> and </span>uranium-235<span>) that have long half-life and are </span>found<span> in appreciable quantity in the Earth's crust, along with the decay product </span>uranium-234<span>.</span>
7 0
3 years ago
Do you agree / disagree - Light is always the same, even when it is emitted by different light sources (like the sun and a light
Ilia_Sergeevich [38]

Answer:

She's right that there's a difference, and you are right that it's all just electromagnetic waves!

The key to this is that there is no such thing as "white light" when you really get down to it. Each light emits a range of wavelengths of light. If they have a sufficiently even distribution of wavelengths, we tend to call that light "white," but we can only use that term informally.

Both the sun and the light bulb emit so-called "Blackbody radiation." This is the particular spectrum of light that's associated with the random thermal emissions of a hot object. Cool objects tend to emit more of their energy in the longer wavelengths like reds and IRs, while hotter objects emit more energy in the shorter wavelengths like blues and UV.

Blackbody graphic

(Note, there are other possible emission spectra, but those are associated with different materials doing the emissions and, for the purposes of this discussion, they aren't too important. We can just claim the emissions are all blackbody)

If you notice, as you get hotter, a larger portion of the energy is emitted in the blue, violet, and ultraviolet. That's how you get a sunburn from the sun. It's harder to get a sunburn from an artificial light, not because it's artificial, but because those lights are almost always cooler than the sun. They don't have as much UV content. Instead, they have more red and yellow, which incidentally is why pictures taken indoors look very yellow. If you use a strobe, however, all those yellow hues go away because a strobe light is very warm, with lots of blues.

You can get a sunburn from artificial light, of course. Tanning beds are the obvious example, but there are other interesting ones. When you're a jeweler working in platinum, for instance, you need to wear UV protective gear (like glasses or even sunscreen). Platinum's melting point is so hot that it actually emits quite a lot of UV light and can give you a sunburn!

Other than these spectra, there is nothing different between light from an artificial source and light from the sun. Photons are photons.

Explanation:

PLEASS MARK ME AS BRAINLIEST

#STAY SAFE

4 0
3 years ago
Study the graph about oxygen content of Earth’s atmosphere. Oxygen Content of Earth apostrophe s Atmosphere line graph. X axis i
Anika [276]

Explanation:

from the graph study about oxygen content of Earth's atmosphere, we can understand that  

1)

4 billions year ago = None, 3 billions year ago = Cyanobacteria and Archaea , 2 and 1 billions year ago = Bacteria and Green algae , 500 Ma = invertebrate fossils started to existence. Early land plants came in to existence around 398 MA that is Devonian. Dinosaurs are came in to existence during Triassic and Jurassic that is around 251 Ma. Man and animals are recent organism came under Holocene that is 11000 years ago.

2)

The first cells on the earth are anaerobic microorganisms, as the CO2 level is too high they survive by using CO2.

3)

Starting around 2.7 billion years ago, photosynthesis by Cyanobacteria and later plants , pumped “OXYGEN” in to the atmosphere. This caused the decline of anaerobic bacteria and allows the diversification of animals as seen in “CAMBRIAN” around 500 millions year ago.  

Early vascular plants “CAPTURED” CO2 starting before the Carboniferous period that began around 350 millions year.Leading to lower temperatures and allowing and allowing the seed plants to outcompetes seedless plants.

Modern human activities has raised both “CO2 and METHANE” level in the atmosphere to over leading to higher temperature and extinction of other species.

3 0
4 years ago
Read 2 more answers
what tool do you need to use to find temperature of hot chocolate a meter stick b stopwatch c balance d graduated cylinder e bea
hammer [34]

Answer:

Explanation:

I believe u should use a thermometer coz its better and u will be able to find the temperature more accurately!!

4 0
3 years ago
Other questions:
  • Which type of organic reaction produces both water and carbon dioxide?
    10·2 answers
  • A steak is cooked on the grill. this is an example of a:
    5·2 answers
  • Equal volumes of 0.2 M ammonia and 0.2 M nitric acid, HNO₃, are mixed. Write the net ionic equation for the reaction and identif
    12·1 answer
  • A nonrenewable resource consisting of hydrocarbons from decomposed plants and animals is called a _____.
    7·1 answer
  • Which of the following is a unit of density? = Mass / volume
    8·2 answers
  • Reacts with air..physical or chemical property ;)
    7·2 answers
  • I just need help plz!
    5·1 answer
  • How do we get energy from the food we eat?
    12·1 answer
  • If I have 400 grams of Nitrogen Tribromide, how many moles do I have?
    5·1 answer
  • Consider the following reaction in which all reactants and products are gases.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!