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nlexa [21]
3 years ago
7

Which of the following does not serve as a way to neutralize the charge in a body?

Chemistry
2 answers:
Gwar [14]3 years ago
4 0

Answer:

B

Explanation:

xenn [34]3 years ago
3 0

<u>Answer: </u><em>B. Adding more protons to a positively charged body until the number of protons matches the number of electrons</em>

Option B is the appropriate response  

<u>Explanation:</u>

Utilising the equivalent number of inverse charges will kill a charged body.  

Adding more protons to a decidedly charged body until the number of protons coordinates the quantity of electrons won't kill the body since protons are emphatically charged particles. Adding more protons to an emphatically charged body would make it all the more decidedly charged.  

Enabling free electrons to escape from a contrarily charged body will kill since the more negative body leaves the negative electrons.

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How much water should be added to 80 grams of common salt so as to obtain 20% salt solution​
NISA [10]
Concentration of solution is 20%

Mass of solute( common salt) is 80g

take the amount of water as x

mass of the solvent = (80+x)

We know, concentration of solution = (mass of solute/mass of solution)×100

20=(80/80+x)×100

80+x=80×5 ( we devide the both side by 20)

x= 400-80

x=320 g
3 0
2 years ago
What is the molarity of a solution that was prepared by dissolving 82 g of cacl2?
ExtremeBDS [4]

The molarity of a solution is 0.909 M.

m(CaCl₂) = 82 g; mass of calcium chloride

M(CaCl₂) = 111 g/mol; molar mass of calcium chloride

n(CaCl₂) = m(CaCl₂) ÷ M(CaCl₂)

n(CaCl₂) = 82 g ÷ 111 g/mol

n(CaCl₂) = 0.74 mol; amount of calcium chloride

V(CaCl₂) = 812 mL = 0.812 L; volume of calcium chloride

c(CaCl₂) = n(CaCl₂) ÷ V(CaCl₂)

c(CaCl₂) = 0.74 mol ÷ 0.812 L

c(CaCl₂) = 0.909 mol/L = 0.909 M; molarity of calcium chloride

Calcium chloride is a inorganic salt with ionic bonds between calcium and chlorine. It is a colorless crystalline solid at room temperature, highly soluble in water.

More about molarity: brainly.com/question/26873446

#SPJ4

7 0
1 year ago
Plssss help me I only have 10 mins.
Aleksandr [31]

Answer:

Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.

Explanation:

This what I think

3 0
3 years ago
Read 2 more answers
14 billion years (roughly the age of the universe) to seconds. (Assume there are 365 days in a year.)
fenix001 [56]

Answer:

                     4.41 × 10¹⁷ Seconds

Explanation:

                   For this problem we will first find out the number of days in 14 billion years.

Remember that 1 billion is equal to 1,000,000,000 or 10⁹. So, 14 billion years will be written as 14,000,000,000 or 1.4 × 10¹⁰ years.

Therefore, In

                           1 year there are  =  365 years

So, In

                  1.4 × 10¹⁰ years  there will be  =  X years,

Solving for X,

                     X =  1.4 × 10¹⁰ years × 365 days / 1 year

                      X =  5.11 × 10¹² days

Secondly, as there are 24 hours per day and each hour has 60 minutes and each minute has 60 seconds, therefore, the number of seconds per day are calculated as,

Number of Sec/day = 24 × 60 × 60

Number of Sec/day = 86400 sec/day

Hence, If,

                               1 day has  =  86400 seconds

then,

                    5.11 × 10¹² days will contain  = X seconds

Solving for X,

                      X =  5.11 × 10¹² days × 86400 sec / 1 day

                     X  =  4.41 × 10¹⁷ Seconds

6 0
3 years ago
What is the product(s) of the reaction below?
sladkih [1.3K]

Answer:

A. Solid aluminum oxide and solid iron

Explanation:

The reaction equation is given as:

    2Al  +   Fe₂O₃  →   Al₂O₃   + 2Fe

The species on the left hand side are the reactants

Those on the right hand side of the expression are the products.

The products are:

Al₂O₃   and Fe

 These are solid aluminum oxide and solid iron

3 0
3 years ago
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