PLS HELP ILL MAKE BRAINLIEST 30 POINTS!!Which parts of the muscular and skeletal system work together to move muscles and bones? nerves esophagus and intestine arteries and vessels tendons and ligaments
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Answer:
tendons and ligaments
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The atomic mass of an element is 32.07 u and its atomic number is 16. The element forms a simple ion. The ion will most likely have a charge of (A) 1– (B) 2– (C) 3+ (D) 1+
Carbon dioxide is a green house gas that is linked to global warming. It is released into the atmosphere through the combustion of octane (C8H18) in gasoline. Write the balanced chemical equation for the combustion of octane. (Use the lowest possible whole number coefficients. Omit states-of-matter from your answer.)Calculate the mass of octane needed to release 3.50 mol CO2.
All chemicals which contain OH in the formula are bases. a. True b. False
b. A dependence on fossil fuels could lead more countries to produce oil, leading to greater competition for sales.
c. An increase in dependence on fossil fuels could lead to lower costs for oil, causing disputes between producer and consumer countries.
d. All of the above
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The correct statement regarding the dependence on fossil fuels is as follows: .
a. The grater demand for fossil fuels With decreasing supplies could lead to an increase in competitive action over liminted resources
Further Explanation:
Fossil fuels are the types of fuels that are produced by natural processes such as anaerobic decomposition of dead creatures. These are composed of large amounts of carbon. Fuels that have low carbon to hydrogen ratios are volatile in nature whereas fossil fuels having almost pure carbon are non-volatile in nature.
Fossil fuels are very important because a large amount of energy is produced from them. These are used for the generation of electricity. Gasoline is used in transportation, natural gas is useful for heating and cooking and coal is used to produce electric power.
Fossil fuel comprises coal, oil and natural gas. These are used to make energy over the past million years. The entire energy requirement of any country depends on the availability of fossil fuels. Since these are non-renewable in nature, these need to be used efficiently. Renewable sources of energy should be used to meet the energy requirements as these are renewable and they do not create negative impacts on the environment. Almost all countries depend on fossil fuels to fulfill their energy needs and this consumption goes on increasing day by day.
Since the demand for fossil fuels is increasing rapidly, the resources become more and more limited. So it can lead to a competitive action over these limited sources to produce energy. Therefore option a is correct.
Learn more:
- Identify the phase change in which crystal lattice is formed: brainly.com/question/1503216
- Which of the phase change is exothermic? brainly.com/question/1875234
Answer Details:
Grade: High School
Chapter: Sources of energy
Subject: Chemistry
Keywords: fuels, fossils fuels, non-renewable, energy, dependence, consumption, competitive action.
Answers
3.2 g of O₂
Solution:
This reaction is for the formation of Potassium Superoxide, The reaction is as follow,
K + O₂ → KO₂
First let us confirm that either the given amount of Potassium produces the given amount of Potassium oxide or not,
So,
As,
39.098 g (1 mole) K produced = 71.098 g of K₂O
So,
3.91 g of K will produce = X g of K₂O
Solving for X,
X = (3.91 g × 71.098 g) ÷ 39.098
X = 7.11 g of K₂O
Hence, it is confirmed that we have selected the right equation,
So,
As,
39.098 g of K required = 32 g of O₂
So,
3.91 g of K will require = X g of O₂
Solving for X,
X = (3.91 g × 32 g) ÷ 39.098 g
X = 3.2 g of O₂
mass of the oxygen =mass of the compound- mass of the potassium
that is 7.11 grams -3.91 grams= 3.2 grams of oxygen is involved
This is because the mass of the compound composes the mass of potassium + mass of the oxygen
4
6
Cannot be determined
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Carbon can share a maximum of four of its valence electrons when bonding to other atoms. This is the reason why organic molecules can be so large because of this bonding. Suppose you have a compound of CCl4. You know that chlorine can only share 1 electron because 7 of its electrons are filled. Also, in carbon, it can only share 4 electrons because 4 of it are already filled. That is why carbon needs four chlorine to form CCl4.
1:1
1:2
3:2
5:4
Answers
Answer: The mole ratio of hydrogen to ammonia is 3 : 2
Explanation:
Mole ratio is defined as the ratio of number of moles of the substances whose ratio is to be calculated.
In a chemical reaction, the stoichiometric coefficients represents the number of moles.
For the given chemical reaction of production of ammonia follows:
By stoichiometry of the reaction:
1 mole of nitrogen reacts with 3 moles of hydrogen to produce 2 moles of ammonia.
So, the mole ratio of hydrogen to ammonia in a given chemical reaction is 3 : 2
The mole ratio of hydrogen to ammonia is 3:2.
The mole ratio of hydrogen to ammonia can be determined by examining the balanced chemical equation for the reaction:
N₂ + 3H₂ ⇒ 2NH₃
From the equation, we can see that 3 moles of hydrogen react with 1 mole of nitrogen to produce 2 moles of ammonia.
The coefficients in the balanced equation represent the mole ratio between the reactants and products. Here's a breakdown:
For every 1 mole of nitrogen, require 3 moles of hydrogen.
These 3 moles of hydrogen will react with 1 mole of nitrogen to produce 2 moles of ammonia.
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B. 500
C. 50
D. 5
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~Hello There!~
Considering that there are 100 cm in a meter, half of that would be 50.
Your answer is C. 50.
Hope This Helps You!
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Have A Great Day ^_^
- Hannah ❤
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The IUPAC name for Fe2O3 is Iron (III) oxide. Rusting is the common name for the corrosion of iron or steel.
Rusting of iron is known as as corrosion and withinside the procedure of corrosion the iron get transformed into iron oxide and that is an instance of chemical change. The chemical formula of rust is Fe2O3. The interplay of Iron with air and water produces rust. The Oxygen exist withinside the air shape a powdered substance known as rust. The rust is a red-orange flaky substance and the phenomenon of the formation of rust is known as rusting. Rusting is an oxidation procedure, and is much more likely to arise at the steel surface.
Therefore, the IUPAC name for Fe2O3 is Iron (III) oxide.
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