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Anarel [89]
3 years ago
14

Would You rather

Chemistry
1 answer:
muminat3 years ago
4 0
Get 100 dollars when every time someone lies to me
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The color of light emitted during a flame test depends on
tiny-mole [99]

option of d is the write answer

3 0
2 years ago
Read 2 more answers
The notation for the nuclide 13755Cs gives information about
k0ka [10]

Answer is (3) both mass number and atomic number.

The notation is ₅₅¹³⁷Cs. The Cs represents the chemical symbol of Caesium element. The subscript number at the left hand side of the symbol indicates the atomic number. Hence, atomic number of Cs is 55. The superscript number at the left hand side of the symbol shows the mass number. Hence, the mass number of the Cs is 137.

5 0
3 years ago
Is this a redox reaction? give evidence (many points plz answer)<br> 2Mg + CO2 → 2MgO + C
Aleonysh [2.5K]

Answer:

\boxed{yeah}

Explanation:

CO_2 \:  is \: reduced \: to→C \: by \:  2M_g \: (the \: reducing \: agent): while \\ 2M_g \: is \: oxydized \: to→2M_gO \: by \:  CO_2 \: (the \: oxydizing \: agent)

6 0
2 years ago
When 8.0 grams of sodium hydroxide is dissolved in sufficient water to make 400. mL of solution, what is the concentration of th
nata0808 [166]

Answer:

The concentration of this sodiumhydroxide solutions is 0.50 M

Explanation:

Step 1: Data given

Mass of sodium hydroxide (NaOh) = 8.0 grams

Molar mass of sodium hydroxide = 40.0 g/mol

Volume water = 400 mL  = 0.400 L

Step 2: Calculate moles NaOH

Moles NaOH = mass NaOH / molar mass NaOH

Moles NaOH = 8.0 grams / 40.0 g/mol

Moles NaOh = 0.20 moles

Step 3: Calculate concentration of the solution

Concentration solution = moles NaOH / volume water

Concentration solution = 0.20 moles / 0.400 L

Concentration solution = 0.50 M

The concentration of this sodiumhydroxide solutions is 0.50 M

6 0
3 years ago
Which element is less electronegative than silicon (Si)? A. Sulfur (S) B. Magnesium (Mg) C. Carbon (C) D. Oxygen (0)​
Luden [163]

Answer:

C. Carbon

Explanation:

Carbon has an electronegativity of 2.55, followed by Tin at 1.96, Silicon at 1.90 and the least electronegative would be Lead at 1.87.

7 0
2 years ago
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