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
MrMuchimi
3 years ago
6

How does an object become negatively charged?

Chemistry
2 answers:
Vsevolod [243]3 years ago
4 0

Answer: A.

Explanation:

Vadim26 [7]3 years ago
3 0

An object becomes negatively charged when it gains electrons, because electrons have a negative charge.

You might be interested in
Which organism is most reliant on other organisms, natural processes, or both for reproduction? Explain your answer.
GarryVolchara [31]

Answer:

Asexual versus Sexual Reproduction

Many organisms can reproduce sexually as well as asexually. Aphids, slime molds, sea anemones, and some species of starfish are examples of animal species with this ability.Asexual versus Sexual Reproduction

Many organisms can reproduce sexually as well as asexually. Aphids, slime molds, sea anemones, and some species of starfish are examples of animal species with this ability.

Explanation:

6 0
2 years ago
Balance each of the following redox reactions occurring in basic solution.MnO−4(aq)+Br−(aq)→MnO2(s)+BrO−3(aq)Express your answer
Ahat [919]

Answer : The balanced chemical equation is,

2MnO_4^-(aq)+Br^-(aq)+H_2O(l)\rightarrow 2MnO_2(s)+BrO_3^-(aq)+2OH^-(aq)

Explanation :

Rules for the balanced chemical equation in basic solution are :

  • First we have to write into the two half-reactions.
  • Now balance the main atoms in the reaction.
  • Now balance the hydrogen and oxygen atoms on both the sides of the reaction.
  • If the oxygen atoms are not balanced on both the sides then adding water molecules at that side where the more number of oxygen are present.
  • If the hydrogen atoms are not balanced on both the sides then adding hydroxide ion (OH^-) at that side where the less number of hydrogen are present.
  • Now balance the charge.

The half reactions in the basic solution are :

Reduction : MnO_4^-(aq)+2H_2O(l)+3e^-\rightarrow MnO_2(s)+4OH^-(aq) ......(1)

Oxidation : Br^-(aq)+6OH^-(aq)\rightarrow BrO_3^-(aq)+3H_2O(l)+6e^-  .......(2)

Now multiply the equation (1) by 2 and then added both equation, we get the balanced redox reaction.

The balanced chemical equation in a basic solution will be,

2MnO_4^-(aq)+Br^-(aq)+H_2O(l)\rightarrow 2MnO_2(s)+BrO_3^-(aq)+2OH^-(aq)

8 0
3 years ago
highlight why it is important to evaluate important assessment studies before any development could be made on the environment​
Kay [80]

Answer:

Essentially, an EIA is designed to identify the potential risks of a project (e.g., infrastructure development such as a dam) to environmental and human well-being and identify measures to eliminate and/or mitigate these risks. This can be done by replacing and/or modifying planned activities to reduce impacts

Explanation:

6 0
2 years ago
What is the best place to find detailed information about a hazardous chemical used in your work area
azamat

Answer:

MSDS  --  Material Safety Data sheet

Explanation:

The full form of MSDS is Material Safety Data sheet. A Material Safety Data Sheet is a document which contains the information related to the potential hazards (fire or reactivity and environmental and health ) and includes how to work or use the chemical product safely.

It is regarded as an essential starting point for development of the complete health as well as safety program. MSDS also contains other information such as the use of the chemical, its storage and also handling and the  emergency procedures that are related to the hazards of the material.

3 0
3 years ago
Classify each of the following bonds as non polar covalent polar or ionic
Soloha48 [4]
A) Polar (Cl is more electronegative than Si)
b) Nonpolar (Both atoms have the same electronegativity)
c) Ionic (Ionic bonds happen between a metal and a nonmetal)
d) Nonpolar (Hydrogen and carbon have about the same electronegativity) this is a common nonpolar bond)
You can identify the type of bon by looking at what is being bonded (nonmetal or metal) and the placement of the elements on the periodic table (electronegativity increases going up a group and going from left-right across a period).
3 0
3 years ago
Other questions:
  • Which formula can be used to express the law of conservation of momentum, where p = momentum? pi = pf pi > pf pi < pf pi ≠
    10·2 answers
  • Explain why insects are considered to be the most diverse organism? Insects can survive in all extreme environments. Insects are
    15·1 answer
  • Water molecules are polar because the...
    13·2 answers
  • Iron has a density of 7.874 g/cm3 what is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000cm by 5000
    8·1 answer
  • Osmosis is the passage of water molecules through a semi-permeable membrane from a solution of ________ concentration to _______
    12·1 answer
  • How many grams of ZnCl2 will be produced from 26.0g of Zn and 42.0g of HCl. Round to three significant figures
    8·1 answer
  • The reaction converting glycerol to glycerol-3-phosphate is energetically unfavorable by 9.2 kJ. The reaction of ATP with water
    12·1 answer
  • If you are involved in a vehicle accident, you should not drink any alcohol up to ___ hours after the accident or you could be l
    7·1 answer
  • Using the balanced equation for the combustion of ethane: 2C2H6 + 7O2 → 4CO2 + 6H2O, how many moles of O2 needed to produce 12 m
    5·1 answer
  • Why are alkali metals so reactive?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!