This is easy, just read the last question. (Already Asked this question before)How many grams of Sodium Hydroxide could be produced if 1.2L of 3.0 M Calcium Hydroxide are consumed?

Na2CO3 + Ca(OH)2 --> 2NaOH + CaCO3

Now I know how to do equations like this, just a bit confused on how to use my conversion factors.

Do I need to use the 3.0 Molarity in this equation or can I just use Molar Volume of a gas (22.4L/1 mole)?

Answers

Answer 1

Answer:

You would have to use the molarity of calcium hydroxide to find the moles of calcium hydroxide. Once you have moles, just convert using mole:mole ratio and find the grams of sodium hydroxide.

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When magnesium ribbon is ignited, it gives off a white fume of magnesium oxide. What is this type of reaction? synthesis reaction double displacement reaction decomposition reaction single displacement reaction
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What is the atomic number of an element that has six protons and eight neutrons?

Answers

The element would be Carbon, which is number 6 on the periodic table, therefore having an atomic number of 6.

You need to make 3-bromo-5-isopropyltoluene starting with m-isopropyltoluene. Supply the reagent needed in the order it is needed and draw the resulting product.

Answers

Answer:

The reagents needed are Br₂ and FeBr₃

Explanation:

In order to make 3-bromo-5-isopropyltoluene starting with m-isopropyltoluene we need to add Bromine (Br₂) and Iron(III) bromide (FeBr₃).

Please see attached picture for the resulting product, 3-bromo-5-isopropyltoluene.

Select all that apply. Organic compounds must contain: hydrogen carbon oxygen nitrogen

Answers

Select all that apply. Organic compounds must contain carbon. Organic molecules mean that chemical compounds contain carbon in them. Organic also refers to living organisms. So originally, the term organic molecules are found in living things. Carbon can also bond with other four atoms because of its outer shell that has four electrons. This is the reason why organic molecules can be so large because of this bonding. For example, we need proteins in our body in order to perform the necessary functions to live. Proteins are made up of nucleic acids. And nucleic acids have a carbon-nitrogen-hydrogen bond in it

Answer: hydrogen and carbon

Explanation:

Organic compounds are those compounds that contain carbon bonded to hydrogen.Example: $CH_4$ is an organic compound as it contains C-H bond.

Inorganic compounds are those compounds that do not contain carbon or contain carbon not bonded to hydrogen. They might contain other elements such as nitrogen or oxygen. Example: $CO_2$

Which is evidence that a chemical Reagan occurred?A. A phase change occurs
B. A new gas is observed in the form of bubbles
C. Red and yellow paint mixing to make orange
D. The temperature of the substance remains constant updates

Answers

To solve such this we must know the concept of chemical reaction. Therefore, the correct option is option B that is a new gas is observed in the form of bubbles.

What is chemical reaction?

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

The characteristics of chemical reaction are:

Evolution of a Gas

Change in temperature

Change in color

Formation of Precipitate

The evidence that a chemical reaction has occurred is a new gas is observed in the form of bubbles.

Therefore, the correct option is option B that is a new gas is observed in the form of bubbles.

Learn more about the chemical reactions, here:

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Nuclear fission produces about one-fifth the power in the United States. An unintended positive consequences of nuclear power has been that A) a lot of power is generated. B) radioactive waste is created. C) less greenhouse gases are created. D) nuclear power plants are targets for terrorists.

Answers

answer is C) less green house gases are created

Answer:

Explanation: i did it and it wasn't c it was b

60 ml of a 0.40 m solution of h2so4 is used to neutralize 0.3 m magnesium hydroxide solution, what is the ml of sodium hydroxide?

Answers

60 ml of a 0.40 m solution of h2so4 is used to neutralize 0.3 m magnesium hydroxide solution, the volume of NaOH required to neutralize the given amount of Mg(OH)2 is 160 ml.

To answer this question, we need to use the concept of stoichiometry. Stoichiometry is the calculation of the quantities of reactants and products in a chemical reaction. The balanced chemical equation for the neutralization reaction between sulfuricacid (H2SO4) and magnesium hydroxide (Mg(OH)2) is:
H2SO4 + Mg(OH)2 → MgSO4 + 2H2O
From the equation, we can see that one mole of H2SO4 reacts with one mole of Mg(OH)2. Therefore, the number of moles of Mg(OH)2 in 60 ml of 0.3 m solution is:
moles of Mg(OH)2 = concentration x volume = 0.3 x (60/1000) = 0.018 moles
Since one mole of Mg(OH)2 requires one mole of NaOH to neutralize it, we need 0.018 moles of NaOH. The concentration of the NaOH solution is not given, so we cannot directly calculate the volume of NaOH required. However, we can use the concentration and volume of the H2SO4 solution to find the number of moles of H2SO4 used in the neutralization reaction:
moles of H2SO4 = concentration x volume = 0.40 x (60/1000) = 0.024 moles
From the balanced equation, we know that one mole of H2SO4 reacts with two moles of H2O. Therefore, the number of moles of H2O produced in the reaction is:
moles of H2O = 2 x moles of H2SO4 = 0.048 moles
Since the reaction is neutralization, the same number of moles of H2O and H+ ions are produced. Therefore, the number of moles of H+ ions produced is also 0.048 moles. Each mole of NaOH can neutralize one mole of H+ ions. Therefore, the number of moles of NaOH required is:
moles of NaOH = 0.048 moles
If we assume that the concentration of the NaOH solution is also 0.3 m, then the volume of NaOH required is:
volume of NaOH = moles of NaOH / concentration = 0.048 / 0.3 = 0.16 L = 160 ml

To learn more about stoichiometry, refer:-

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