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dem82 [27]
3 years ago
10

2H₂ + O₂ -> 2H₂O In this equation, write the coefficient numbers HELP ME PLEASEEEE

Chemistry
1 answer:
Kryger [21]3 years ago
5 0

Answer:2H₂+ O₂→ 2H₂O the reactants are 2H₂ and O₂ ... if the theoretical yield is 95 g of water after the chemical reaction you may have only 45g of water

i think

Explanation:

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What is molarity of 50.0 g of mgcl2 dissolved in 150 ml of solution?
Ivahew [28]
To find the molarity of the compound, simply determine the molar mass of MgCl2 and then convert 50 g to moles using the molar mass of the compound. Then convert 150 ml to L = 0.15 L

Then divide the moles amount by the volume in L.
8 0
3 years ago
35.10 g of aluminum hydroxide is allowed to react with 53.94 g of sulfuric acid as follows:2Al(OH)3(s) + 3H2SO4(aq) -------->
ikadub [295]

Answer:

62.586 gram

Explanation:

moles of Al(OH)3 = mass / molar mass = 35.1 / (27+17x3) = 0.45 mol

moles of H2SO4 = mass / molar mass = 53.94 / (2+32+16x4) = 0.55 mol

H2SO4 is the limiting reagent (reacts completely)

⇒ moles of Al2(SO4)3 is worked out by moles of H2SO4

moles of Al2(SO4)3 = moles of H2SO4 / 3 = 0.183 mol

mass of Al2(SO4)3 = mole x molar mass = 0.183 x (27x2 + 96x3) = 62.586 gram

8 0
3 years ago
Give the name of the element that is a member of the alkali metal family whose most stable ion contains 2 electrons.
notka56 [123]
Lithium

Li → Li⁺ + e⁻

Li 1s²2s¹ → Li⁺ 1s² + e⁻
3 0
4 years ago
List the number of protons neutrons and electrons in 13/6 C
Charra [1.4K]
<h3>Answer:</h3>

             Number of Protons =  6

             Number of Electrons  =  6

             Number of Neutrons  =  7

<h3>Explanation:</h3>

Number of Protons:

                               As the number of protons present in the nucleus are equal to the atomic number therefore, using periodic table one can easily find out the atomic number of C atom. Hence, C is present in group 14 and period 2 and having an atomic number of 6. Therefore, number of protons in C atom are 6.

Number of Electrons:

                                 As shown in statement, C is not carrying any type of charge. It means this atom is neutral in nature. Which means, it is carrying the same number of electrons as the number of protons in order to give a neutral atom. Therefore, it contains 6 electrons.

Number of Neutrons:

                                  Number of neutrons can be calculated using following formula,

                  No. of Neutrons  =  Atomic Mass - Number of Protons

As,

                                    Atomic Mass  =  13

So,

                                    No. of Neutrons  =  13 - 6

                                    No. of Neutrons  =  7

6 0
3 years ago
Read 2 more answers
Sodium bicarbonate is sometimes used to neutralize acid spills. If 2.0 L of 1.0 M H2SO4 is spilled, what mass of sodium bicarbon
UkoKoshka [18]

Answer:

168.0 g

Explanation:

First thing, write a balanced chemical equation:

H_{2}SO_{4}+ 2NaHCO_{3}  ----> Na_{2}SO_{4} + 2H_{2}O+2CO_{2}

n(H2SO4) = concentration * volume

                = 1.0 M * 2.0 L

                = 2.0 mol

According to the balanced equation, 1 mol of acid requires 2 mol of sodium bicarbonate. This means that 2 mol of acid requires 2 mol of sodium bicarbonate. What mass of sodium bicarbonate is this?

mass (NaHCO3) = number of moles * molar mass

                           = 2.0 mol * 84.0065 g/mol

                           = 168.0 g

4 0
3 years ago
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