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Dahasolnce [82]
3 years ago
7

What air moves horizontally or parallel to the ground?

Chemistry
1 answer:
weqwewe [10]3 years ago
7 0

Wind, air that moves to the ground

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Choose all that apply. Which of the following are not considered to be elements essential for life?
Basile [38]
Al, Si, Mg
 All other elements seem more necessary in life

8 0
4 years ago
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I need the answer to this asap!! please explain
kumpel [21]

Answer:

See explanation

Explanation:

Calcium carbide reacts with water to yield acetylene gas and calcium hydroxide as follows;

CaC2(s)+2H2O(g)⇋Ca(OH)2(s)+C2H2(g)

This now shows us that the equation as written in the question is wrong. Since the equation for the reaction of calcium carbide and water as shown in the question is wrong, the equation can not be balanced.

6 0
3 years ago
A ball with a density of 1100 kg/m3 is submerged in two liquids: water (ρ = 1000 kg/m3) and honey (ρ = 1400 kg/m3). What will th
Lapatulllka [165]

Hello!

So, we are given a ball with a density of 1100 kg/m³, and two liquids: water (1000 kg/m³) and honey (1400 kg/m³). Our goal is to determine if the ball will sink or float in the given liquids.

Let's take two common substances: water and ice. Water has a density of 1000 kg/m³ and ice has a density of about 917 kg/m³. You would notice that the ice is always floating when you put ice and water together. This would occur if you have other substances.

Here's what you should know:

  1. If the density of an object is greater than the liquid it is in, then that object will sink.
  2. If the density of an object is less than the liquid it is in, then that object will float.

Since the ball has a density of 1100 kg/m³, and water's density is 1000 kg/m³, then the ball will sink. If the ball is placed in honey, then it will float because the density of honey (1400 kg/m³) is greater than the ball's density.

Therefore, objects with a greater density than the surrounding liquid sink, while objects with a smaller density than the surrounding liquid float, which is the fourth choice.

3 0
3 years ago
1. The electron arrangement ions X and Y2 are 2, 8, and 2, 8, 8 respectively.
svetoff [14.1K]

The given question is incomplete. the complete question is:

The electron arrangement ions X^{3+} and Y^{2-} are 2, 8, and 2, 8, 8 respectively.

Write the electronic arrangement of the elements X and Y.

Write the formula of the compound that would be formed between X and Y.

Answer: 1. The electronic arrangement for X and Y are 2,8, 3 and 2,8,5 respectively.

The formula of the compound formed is X_2Y_3

Explanation:

Electronic configuration is the arangement of electrons in an atom in order of increasing energies.

Cations are formed when electrons are lost by atoms and anions are formed when electrons are gained by atoms.

X^{3+}:2,8

X:2,8,3

Y^{3-}:2,8,8

Y:2,8,5

For formation of a neutral ionic compound, the charges on cation and anion must be balanced.

Here element X is having an oxidation state of +3 called as X^{3+} cation and Y^{2-} is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral X_2Y_3

3 0
3 years ago
Observing a phenomenon in the lab includes which of the following?
dedylja [7]

Answer:

D

Explanation:

Identifying unique features of evidence

8 0
4 years ago
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