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maks197457 [2]
3 years ago
6

(-3,5); m= 2/3 plzzzzz help

Chemistry
2 answers:
AveGali [126]3 years ago
6 0

Setting up the equation, you get

5=\frac{2}{3} *(-3)+b

b=7

Therefore, the equation is y=\frac{2}{3} x+7


avanturin [10]3 years ago
5 0

I’m not quite sure what you are asking. Though, if you want an equation in slope-intercept form, it would be:

y=2/3x + 7

To ensure that the equation is correct, plug in the -3 on x and the 5 on y.

5=2/3(-3)+7

5=-2+7

5=5

Hope I helped!

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How do ionic bonds form in binary compounds?<br><br> (from discovery education)
Nookie1986 [14]

Answer:

Ionic bonding is the complete transfer of valence electron(s) between atoms and is a type of chemical bond that generates two oppositely charged ions. By losing those electrons, these metals can achieve noble-gas configuration and satisfy the octet rule.

Explanation:

7 0
3 years ago
Suppose a current of flows through a copper wire for seconds. Calculate how many moles of electrons travel through the wire. Be
vagabundo [1.1K]

Answer:

1.20 × 10⁻³ mol e⁻

Explanation:

There is some info missing. I think this is the original question.

<em>Suppose a current of 0.880 A flows through a copper wire for 132 seconds. Calculate how many moles of electrons travel through the wire. Be sure your answer has the correct unit symbol and round your answer to significant digits.</em>

<em />

Step 1: Given data

  • Intensity of the current (I): 0.880 A (= 0.880 C/s)
  • Time elapsed (t): 132 s

Step 2: Calculate the charge, in Coulomb, that travel through the wire

We will find the circulating charge (q) using the following expression.

q = I \times t = \frac{0.880C}{s}  \times 132s = 116C

Step 3: Calculate the moles of electrons with a charge of 116 C

We will use the relationship 1 mole of electrons = 96,486 C (<em>Faraday's constant</em>)

116C \times \frac{1mol\ e^{-}  }{96,486 C} =1.20 \times 10^{-3} mol\ e^{-}

6 0
3 years ago
Texture provides clues about how igneous rocks were formed A. true B. False
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A.) true

Because the rocks are formed near lava so the texture would be smooth
3 0
3 years ago
An element, X, can form a chloride (XCl3) and an iodide (XI3). The chloride can be converted quantitatively into the iodide when
Arlecino [84]

Answer : The chemical symbol for this element is, (La)

Explanation : Given,

Mass of XCl_3 = 0.760 g

Mass of XI_3 = 1.610 g

The given chemical reaction is:

2XCl_3+3I_2\rightarrow 2XI_3+3Cl_2

First we have to calculate the moles of XCl_3 and XI_3.

\text{Moles of }XCl_3=\frac{\text{Mass of }XCl_3}{\text{Molar mass of }XCl_3}

Molar mass of Cl = 35.5 g/mole

Let the molar mass of element 'X' be, M

\text{Moles of }XCl_3=\frac{0.760}{[M+3(35.5)]}

and,

\text{Moles of }XI_3=\frac{\text{Mass of }XI_3}{\text{Molar mass of }XI_3}

Molar mass of I = 126.9 g/mole

Let the molar mass of element 'X' be, M

\text{Moles of }XI_3=\frac{1.610}{[M+3(126.9)]}

From the balanced chemical reaction we conclude that,

The moles of ratio of XCl_3 and XI_3 is, 1 : 1

That means,

\frac{0.760}{[M+3(35.5)]}=\frac{1.610}{[M+3(126.9)]}

\frac{0.760}{[M+106.5]}=\frac{1.610}{[M+380.7]}

M=138.667g/mol

From this we conclude that the element (X) is lanthanum (La) that has molecular weight, 138.667 g/mol.

Hence, the chemical symbol for this element is, (La)

6 0
4 years ago
What is the arrangement of the electrons in the sub-orbitals of the element Br?
melamori03 [73]

Answer:35 electrons

Bromine atoms have 35 electrons and the shell structure is 2.8. 18.7. The ground state electron configuration of ground state gaseous neutral bromine is [Ar

Explanation:

4 0
3 years ago
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