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
kvv77 [185]
3 years ago
11

How many moles are in a 62.5-g sample of potassium nitrate (KNO3)?

Chemistry
1 answer:
Reil [10]3 years ago
7 0

Answer:25.3 g of KNO₃ contain 0.25 moles.

Explanation:

You might be interested in
What is the name of the ionic compound AlBr3?
Aleksandr [31]

Answer: Correct name will be is aluminum bromide

Explanation:

In a molecular formula ,AlBr_3

Aluminium atoms present = 1  

Bromine atoms present = 3

Charge on aluminium is +3 and charge on bromine is -1.

While naming:

  • Name of the cation is written first. Simple name of the element is written
  • After name of cation name of an anions written with suffix 'ide' in the end.

So, the name of AlBr_3 will be aluminium bromide.

7 0
3 years ago
Read 2 more answers
When heating test tubes, always slant them away from yourself and others.<br> True<br> False
Leni [432]

Answer:

true

Explanation:

3 0
3 years ago
PLSS HELP ME! Read each statement below and decide if you agree or disagree. Write Agree or Disagree below each statement, based
motikmotik

Answer:

1. Temperature is the measurement of how hot or cold something is.

agree

2. When something heats up, new energy is created, and when something cools down, energy is destroyed.

disagree

3.When something heats up, it moves faster, and when something cools down, it moves slower.

agree

4. Hotter things have more energy than colder things.

agree

4 0
2 years ago
(b) Why is nitrogen used for storage of semen<br>in artificial insemination?​
aev [14]
Nitrogen is often used for the storage of semen samples for artificial insemination of cattle. Nitrogen is used to maintain a dry inert atmosphere over chemicals during storage, reaction or processing. Used in brewing, soft drinks and wine-making industries to exclude air from the product and de-aerate water.
3 0
3 years ago
28. What is the heat of reaction for the forward reaction?
ValentinkaMS [17]

Answer:

Check Explanation

Explanation:

The Heat of reaction for the forward reaction is defined as the amount of heat given off or absorbed while the forward reaction is taking place. Mathematically, the heat of reaction for the forward reaction is given as the heat content/heat of formation/Enthalpies of the reaction's products minus the heat content/heat of formation/Enthalpies of the reaction's reactants.

ΔH°run = H°(products) - H°(reactants)

When the heat of reaction is negative, the reaction is said to be exothermic and when it is positive, the reaction is said to be endothermic.

Hope this Helps!!!

8 0
3 years ago
Other questions:
  • Which has the greater mass? 1 l copper or 1 l silver?
    15·1 answer
  • Arrange the following elements from greatest to least tendency to accept an electron.? Rank from greatest to least tendency to a
    8·2 answers
  • Sort these six events from the earliest to the most recent. 1. Democritus proposes the existence of atoms 3rd 2. Dalton's atomic
    13·1 answer
  • Which of the following is one way to prevent the corrosion of iron?
    15·1 answer
  • Independent, dependent, and controlled variable?
    11·1 answer
  • Be sure to answer all parts. what volumes (in liters) of carbon monoxide and oxygen gas must react according to the equation 2co
    12·1 answer
  • Compare and contrast absolute and relative dating
    11·1 answer
  • help please, How much water would you need to add to the 10 grams of sodium hydroxide to make 100 grams of the 10% solution?
    6·1 answer
  • How is the element lead formed?
    15·1 answer
  • Which concept does the diagram show?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!