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charle [14.2K]
2 years ago
5

Which additional product balances the reaction H2SO4 + 2NaOH → Na2SO4 + ________?

Chemistry
2 answers:
Jobisdone [24]2 years ago
7 0
It is H3O for the balance
harina [27]2 years ago
3 0

Answer:

2H2O

It's a double displacement reaction

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En el laboratorio, un vaso precipitado vacío tiene una masa de 0,50 kg. Este vaso se llena con 300 cm3 de una solución saturada
faust18 [17]

Answer:

Density = 0.0007667 Kg/cm³

Explanation:

Given the following data;

Mass of empty beaker = 0.50 kg

Volume of solution = 300 cm³

Mass of glass+solution = 730 g

To find the density of the solution in the glass;

First of all, we would convert the value in grams to kilograms.

Conversion:

1000 grams = 1 kg

730 = X kg

Cross-multiplying, we have;

X = 730/1000 = 0.73 kg

Next, we would determine the mass of the solution.

Mass of solution = Mass of glass+solution - Mass of empty beaker

Mass of solution = 0.73 - 0.50

Mass of solution = 0.23 kg

Lastly, we would solve for the density of the solution;

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the formula;

Density = \frac {mass}{volume}

Substituting into the formula, we have;

Density = \frac {0.23}{300}

Density = 0.0007667 Kg/cm³

4 0
3 years ago
One gallon milk is equal to how many milliliters of milk?
Black_prince [1.1K]

Answer:

3785.411784 mL

Explanation:

6 0
3 years ago
A material was cooled from 100°C to 40°C. What is the temperature change?
vazorg [7]
The answers D) -60
Just subtract
8 0
3 years ago
The reaction P4 +502P4010 + 712 kcal is
igor_vitrenko [27]

Answer:

The reaction is exothermic (option 4)

Explanation:

P4 + 5O2 → P4O10 + 712 kcal

In chemical reactions heat can be absorbed or released:

⇒in the first case, when heat is absorbed, this is called an endothermic reaction. The products have more energy than the reactants. The reaction requires or absorbs energy from it's surroundings.  That means  that in this reaction energy , in the form of heat, will be absorbed by the reactants.

⇒ when heat is released, this is called an exothermic reaction. The reactants have more energy than the products. The reaction gives or releases energy to it's surroundings.  That means  that in this reaction energy , in the form of heat, will be released by the reactants.

in the case of P4 + 5O2 → P4O10 + 712 kcal

We notice that on the right side, which is the product side, there is a positive amount of energy. This means that the energy is released by the the reactants, in this reaction. <u>The reaction is exothermic.</u>

.

4 0
3 years ago
Read 2 more answers
Exercise 2
Brums [2.3K]

Answer:

1. Reuse

2.Recycle

3.Reuse

4.Reduce

5.Recycle

Explanation:

Yun lang po ang alam ko.

5 0
3 years ago
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