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
crimeas [40]
2 years ago
5

What is another name for a beta minus (B-) particle?

Chemistry
1 answer:
pentagon [3]2 years ago
6 0
<span>electron, I believe.
</span>
You might be interested in
Calcium nitrate tetrahydrate dissolves in cold water to the extent of 266 g per 100 cm3. What is the concentration of nitrate io
Soloha48 [4]

Answer : The correct option is, (b) 22.5 M

Explanation : Given,

Mass of calcium nitrate tetrahydrate = 266 g

Molar mass of calcium nitrate tetrahydrate  = 236.15 g/mole

Volume of solution = 100cm^3=100mL

Molarity : It is defined as the moles of solute present in one liter of solution.

Formula used :

Molarity=\frac{\text{Mass of calcium nitrate tetrahydrate }\times 1000}{\text{Molar mass of calcium nitrate tetrahydrate }\times \text{volume of solution in ml}}

Now put all the given values in this formula, we get:

Molarity=\frac{266g\times 1000}{236.15g/mole\times 100ml}=11.26mole/L=11.26M

As calcium nitrate tetrahydrate dissociate to give 1 mole of calcium ion, 2 moles of nitrate ion and 4 moles of water.

The concentration of nitrate ion = 2\times 11.26M=22.5M

Thus, the concentration of nitrate ion is, 22.5 M

4 0
3 years ago
Which of these statements about enzymes is true?
allochka39001 [22]
Enzymes are organic catalysts
and catalysts generally increase rate of reaction by lowering activation energy
C is the answer
7 0
3 years ago
Information gathered by a scientist abut the toxicity of chemical X and chemical Y showed that they had individual safe limits f
cupoosta [38]

Answer:

Synergism

Explanation:

Synergism -

It refers to the process of interaction between the any two or more chemicals , i.e. , combining the chemicals increases the effect of the chemical , is referred to as synergism .

The individual drug or chemical might not be strong or harmful in any respect , but combining it with various other drugs or chemical , might make it very strong or harmful .

Hence ,from the given scenario of the question ,

The correct answer is synergism .

3 0
3 years ago
Paul has different spoons for cooking. He told Sue that he likes to stir hot food with a wooden spoon because it does not burn h
IceJOKER [234]

Answer:

Sue was not right as wood is not a heat conductor and will not allow heat to pass through the spoon thus keeping the hand safe. In a meatal spoon, heat can pass through and burn the hand as meatal is a good conductor of heat.

8 0
3 years ago
How is it that when a salt sample dissolves in water, the delta S for the process is positive?
Bess [88]

Answer:-

Water is highly ordered. In water each oxygen atom is connected to others around it through hydrogen bonding via bridging hydrogen atoms. When a salt like NaCl is dissolved, some of these Hydrogen bonds break.

When a salt like NaCl dissolves in water, the NaCl breaks in to ions Na+ and Cl-.

The water molecules now surround these ions.

The slightly negative oxygen end of water molecule gets near the Na+, while the slightly positive Hydrogen of water molecule gets near the Cl-.

So before salt sample dissolve, the water molecules were highly ordered due to hydrogen bonding. Now after salt dissolve there is a decrease in order and thus an increase in disorder of the water molecules.

Due to increase in disorder, entropy which is a measure of disorder increases. Since entropy increases, delta S for the process is positive.

4 0
3 years ago
Other questions:
  • 5 mL of ethanol has a mass of 3.9 grams and 5.0 mL of benzene has a mass of 4.4 grams,
    11·1 answer
  • 20 pts!!!!!!!!!!
    9·2 answers
  • Will mark brainliest if solved correctly.
    11·2 answers
  • Which of the following is an example of an endothermic process? (2 points) Gasoline burning in a combustion engine A chocolate b
    8·2 answers
  • Which of the following is the best definition of an atom?
    8·2 answers
  • Which pair of molecules have the same empirical formula?
    13·1 answer
  • Is the cell wall factory part or worker? And please explain what the worker or factory part does. (Don’t tell me it’s on quizlet
    9·1 answer
  • Write the general formula of an alkane and use this to predict the 97th member
    13·1 answer
  • What characterizes Stage 2 of the demographic transition seen in developed countries?
    5·1 answer
  • Which of the following is true about electrostatic forces? Check all that are true:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!