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
Keith_Richards [23]
3 years ago
10

whats the balanced chemical equation for Solid potassium iodide decomposes into solid potassium and iodine gas

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
7 0

Answer:

Solid potassium iodide decomposes into solid potassium and iodide gas.

Explanation:

The answer given has a subscript "2" on the iodine at the start of the equation. Why is the 2 there as a subscript?

You might be interested in
HELP ASAP!
sweet [91]

1. Meteorologist predict the weather by using tools. They use these tools to measure atmospheric conditions that occurred in the past and present, and they apply this information to create educated guesses about the future weather. The best we can do is observe past and present atmospheric patterns and data, and apply this information to what we think will happen in the future. Meteorologists use the scientific method on a daily – and even hourly – basis!

2. They use thermometers, barometers, sling psychrometers and rain gauges. They also use anemometers, hygrometers, weather maps, weather balloons and weather satellites.

8 0
3 years ago
Provide the mass number of Fe, which has 29 neutrons
zmey [24]

Answer:

55.845 u

Explanation:

Fe, iron, has 29 neutrons and a atomic mass of 55.845 u

6 0
3 years ago
The image formed by a lens may be real or virtual. The image formed by a lens is always virtual.
amid [387]
There are types of lens; concave and convex lens.
The concave lens is a lens which has an inward curve in the middle, that is, the edges of the curve are thicker than the center of the lens, because of this, any light that enter the lens will spread out [diverge]. An image will look smaller and upright when viewed by a concave lens. Image formed by concave lens are usually VIRTUAL. 
A concave lens will produce a real image ONLY if the object is located beyond the focal point of the lens.
A convex lens is a converging lens, this is because, the center of the lens is thicker than its edges. Any ray of light that passes through the lens will converge at the middle of the lens at point called principal focus.  A convex lens produce a VIRTUAL image when the object is placed infront of the focal point. The virtual image formed is always magnified and upright.<span />
8 0
3 years ago
Read 2 more answers
A full bottle of water was left outside overnight in freezing temperatures, causing the bottle to crack. No mass was added or re
kodGreya [7K]

Answer:The correct answer is option C.

Explanation;

Water has unique property that is, it expands on freezing.Which is the reason for less density of ice than water. The cracking of the bottle was due to the expansion of water (present inside the bottle) on freezing.

Generally, density is inversely proportional to the volume of the substance.

Density=\frac{Mass}{Volume}

Density\propto \frac{1}{Volume}

As we know ,that water expands on freezing which means that volume increases. And with increase in volume of density decreases.

Hence, the correct answer is option C.

6 0
3 years ago
Write the symbol for every chemical element that has atomic number greater than 55 and less than 140.8 u
patriot [66]
Answer on the picture

8 0
3 years ago
Other questions:
  • Sodium carbonate is a reagent that may be used to standardize acids in the same way you used KHP in this experiment. In such a s
    10·1 answer
  • If a substance reacts with oxygen, the chemical reaction is most likely a combustion reaction. decomposition reaction. single re
    15·1 answer
  • Determine the mass in grams of 3.00 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is 74.92 g.)
    11·1 answer
  • How do you solve questions 6 and 7
    12·1 answer
  • Homogeneous mixture that does not settle out upon standing reflect light is an element. solid. hydrated.
    15·1 answer
  • PLEASE ANSWER !!!
    15·2 answers
  • In a Compton scattering experiment, an x-ray photon scatters through an angle of 17.4 from a free electron that is initially at
    13·1 answer
  • What are the abiotic factors a polar bear needs to survive in the tundra?
    6·1 answer
  • 24.3 2 An artifact classified as seeds, found in a site at Newlands Cross, Ireland, is found to have a 14C radioactivity of 0.10
    6·1 answer
  • How many moles are in 28g of CO2?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!