Check all correct statements concerning pentyne.

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Answer 1

Answer: Where are the statements?

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Calcium reacts with water. This reaction is represented by the balanced equation below. The aqueous product of this reaction can be heated to evaporate the water, leaving a white solid, Ca(OH)2(s).Ca(s) + H2O(l) ==> Ca(OH)2(aq) + H2(g)

Compare the electrical conductivity of the aqueous product in the reaction to the electrical conductivity of the white solid that remains after the water is evaporated from the solution.

Write the chemical name of the base produced in the reaction.

State one change in reaction conditions that will increase the rate of the reaction.

Answers

Answer:

- Calcium is more conductive than calcium hydroxide.

- Calcium hydroxide.

- Addition of more either calcium or water to the reaction vessel

Explanation:

Hello,

In this case, based on the given reaction and information, calcium's electrical conductivity 0.298 106/(cm*Ω) which is a relatively high value compared to it its base has due to its large insolubility.

In addition, the name of the formed base is calcium hydroxide based on the IUPAC rules.

Moreover, the addition of more either calcium or water to the reaction vessel will generate more calcium hydroxide.

Best regards.

The aqueous product conducts electricity while the solid does not. Ionic solids do not conduct electricity, but ions dissolved in solution do.The chemical name of the base is calcium hydroxide.Increasing the temperature of the system would increase the rate of the reaction.

What are some basic ideas of the cell theory?

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All living things are made of cellsCells are the basic just unit of lifeCells arise from pre-existing cells.Hope I helped...

Fill in the Blank. 1. You want to be shielded from all three types of nuclear radiation. If you find shielding that blocks _________________ radiation, then it will most likely also block the other two types. 2. When nuclear radiation enters the tube of a Geiger counter, it ____________________ the atoms of the gas contained in the tube. 3. The particles that make up protons and neutrons and are thought to be basic units of matter are ____________________.

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1. If you find shielding that blocks gamma radiation,then it will most likely also block the other two types. (as the hardest radiation)
2. When nuclear radiation enters the tube of a Geiger counter, it the excited atoms of the gas contained in the tube. (this type deposits all energy into a single atom)
3 The particles that make up protons and neutrons and are thought to be basic units of matter are quarks.

A hydrogen ion, H+, in aqueous solution may also be written as(1) H2O (3) H3O+
(2) H2O2 (4) OH–

Answers

Answer: Option (3) is the correct answer.

Explanation:

In an aqueous solution, a compound exists in the form of ions that is in the form of protons and electrons.

Protons are positively charged and electrons are negatively charged. A proton (usually hydrogen ion, $H^(+)$ ) in water (solvent) also exists as $H_(3)O^(+)$ .

For example, $H_(2)O + HCl \rightleftharpoons H_(3)O^(+) + Cl^(-)$

This shows that the conjugate acid of $H_(2)O$ is $H_(3)O^(+)$ .

Thus, we can conclude that a hydrogen ion, H+, in aqueous solution may also be written as $H_(3)O^(+)$ .

The answer is (3) H3O+. In solution, H+ exists interchangeably bound to H2O (as the hydronium ion) and as a free ion. Some books represent strong acids in net ionic equations as simply H3O+

What does the molecular formula of a compound describe?

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Answer: Molecular Formulas. Molecular formulas are a compact chemical notation that describe the type and number of atoms in a single molecule of a compound. Identify the molecular formula of a compound given either its name or structural formula.

Explanation:

Unknown element X combines with oxygen to form the compound XO2. If 44.0 grams of element X combines with 8.00 grams of oxygen, what is the atomic mass of element X?A. 16 amu
B. 44 amu
C. 88 amu
D. 176 amu
E. 352 amu

Answers

Oxygen has a Mr of 16 and half of 16 is 8 which is how many grams used. If 44 grams of X is used it must have an amu of 88. (Times 2)

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