I need help! Complete the equation iron+hydrochloric acid ----- +

Answers

Answer 1

Answer: Hi there! Simple, iron+hydrochloric acid ⇒Iron (II) chloride+hydrogen.

Answer 2

Answer: it would be chloride plus hydrogen

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Which of the following lists contain only elements?A. air, iron, iodine, magnesium.
B. zinc, gold, aluminium, oxygen.
C. nitrogen, copper, mercury, water.
D. Chlorine, argon, sodium, limestone.

Answers

A list that contains only element is option B which include zinc, gold, aluminum, and oxygen.

What is a Chemical element?

A chemical element may be defined as a type of simple substance that significantly cannot be broken down or fragmented into smaller parts or changed into another substance.

The basic part of an element is an atom, which contains subatomic particles like protons, neutrons, and electrons. All atoms of an element have the same number of protons. In list A, the air is not an element, in list C, water is not an element, in list D, limestone is not an element. While list B includes all elements like zinc, gold, aluminum, and oxygen.

Therefore, a list that contains only elements is option B which includes zinc, gold, aluminum, and oxygen.

To learn more about Chemical elements, refer to the link:

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In which elements are belonging to? I will grant that option B ; ti's the best answer.
In which thou might contain the elements zinc , gold , aluminium , and last by not least oxygen.

I truly hope ti's answer helps thou.

What would happen to the temperature of the hot milk after ten minutes

Answers

it would cool down, wouldn't it?

The heat from the milk will first transfer to the cup making the cup hot, and after a while, the heat will transfer to cooler things around it, decreasing the temperature of the milk.

What is an important step to determine the number of grams of SO3 that can be produced by reacting 6 moles of SO2 with oxygen in the synthesis reaction below. 2 SO2(g) + O2(g) —>2 SO3(g)

Answers

Answer:

480.40 g.

Explanation:

According to the balanced equation:

2 SO₂(g) + O₂(g) → 2 SO₃(g),

it is clear that 2.0 moles of SO₂ react with 1.0 mole of oxygen to produce 2.0 moles of SO₃.

We can get the no. of moles of SO₃ produced:

∵ 2.0 moles of SO₂ produce → 2.0 moles of SO₃, from the stichiometry.

∴ 6.0 moles of SO₂ produce → 6.0 moles of SO₃.

Then, we can get the mass of the produced 6.0 moles of SO₃ using the relation:

mass = no. of moles x molar mass of SO₃ = (6.0 moles)(80.066 g/mol) = 480.396 g ≅ 480.40 g.

What is the balanced chemical equation for the reaction between Hydrochloride acid and calcium carbonate when the products of the reaction are calcium chloride Carbon Dioxide and water

Answers

Answer: 2HCl + CaCO3 => CaCl2+ CO2 + H2O

Explanation:

The equation is now balanced.

2 atoms H in both reactant and product side.

Cl have 2 atoms on both sides.

Ca have 1 atom in both sides.

C have 1 atom on both sides and

O have 3 atoms on both reactant and product side

How do crystal systems differ from eachother

Answers

The different crystal systems differ from each other in the angles between the axes and the lengths of the axes.

There are seven crystal systems:

Cubic: The cubic crystal system has three axes that are perpendicular to each other and of equal length.
Tetragonal: The tetragonal crystal system has three axes that are perpendicular to each other, but one axis is longer than the other two.
Orthorhombic: The orthorhombic crystal system has three axes that are perpendicular to each other, but none of the axes are of equal length.
Monoclinic: The monoclinic crystal system has three axes, two of which are perpendicular to each other and the third is at an angle to the other two.
Triclinic: The triclinic crystal system has three axes that are not perpendicular to each other.
Trigonal: The trigonal crystal system has three axes that are equal in length and intersect at 120-degree angles.
Hexagonal: The hexagonal crystal system has three axes that are equal in length and intersect at 120-degree angles, and a fourth axis that is perpendicular to the other three axes.

The cubic crystal system has the highest symmetry, while the triclinic crystal system has the lowest symmetry. The symmetry of a crystal system determines the properties of the crystal, such as its hardness, density, and electrical conductivity.

To know more about the Crystal, here

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A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice.
Crystal are classified according to the possible relations of the crystal axes.This classification is called as crystal system.

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