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saveliy_v [14]
3 years ago
7

Internal energy is denoted by the letter U. True or false

Chemistry
1 answer:
rewona [7]3 years ago
4 0
Your answer would be false :) Hope this helped <3
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Knowing that all three-sided figures are triangles is an example of:
pogonyaev

Answer:

B. Concept Formation

Explanation:

All the other answer choices are not equivalent.

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Brainliest??

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The public is not yet able to purchase cars powered by hydrogen fuel cells because engineers have to determine how the cars perf
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It’s B just did it

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3 years ago
which nonmetals could form an ionic compound with the formula MgX^2 ( where X represents the nonmetal)? (possible, not possible)
djverab [1.8K]

Answer:

The answer to your question is:

Explanation:

Ionic compound is formed when a metal and a nonmetal are attached.

If we have MgX₂, that means that the nonmetal must have a valence of -1.

From the list the nonmetals with a valence of -1 are:

Bromine(Br) and  fluorine(F).

7 0
3 years ago
8. What is the % weight of Nickel in Nickel Sulfamate (Ni(SO3NH2)2) ?​
uranmaximum [27]

Answer:

% weight of nickle = 24 %

Explanation:

molar mass of Nickel Sulfamate (Ni(SO₃NH₂)₂) = 250.87 g/mol

Solution

1st we write down the molar mass of Ni

molar mass of Ni = 59 g/mol

now we write down the number of moles of Ni in (Ni(SO₃NH₂)₂)

number of moles of Ni = 1 mol

Now we calculate the mass of nickle present in (Ni(SO₃NH₂)₂)

<em>         mass = moles × molar mass</em>

mass = 1 mol × 59 g/mol

mass = 59 g

now we calculate the % weight of nickle in (Ni(SO₃NH₂)₂)

<em>       % weight = (weight of element ÷ total weight) × 100</em>

% weight of nickle = (59 ÷ 250.87) × 100

% weight of nickle = 0.24 × 100

% weight of nickle = 24 %

7 0
3 years ago
15. Explain the advantage of using spectral analysis in the identification of an elemental
I am Lyosha [343]

Answer:

to identify the element by using flame tests

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2 years ago
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