CHEMISTRY HIGH SCHOOL

Which is true about fossil fuels? A.
Coal came from ancient plants, while oil and natural gas came from marine organisms.

B.
Oil and coal came from dinosaurs, while natural came from marine organisms.

C.
Coal came from marine organisms, while oil and natural gas came from fish.

D.
Natural gas and oil came from ancient plants, while coal came from dinosaurs.

Answers

Answer 1
Answer: A. i just did this test
Answer 2
Answer: The correct answer would be D. Natural gas and oil came from ancient plants, while coal came from dinosaurs.

Related Questions

Write the complete name (prefix + unit) for each of the following numerical values:a) 0.10 gb) 1 × 10^-6 gc) 1000 gd) 0.01 ge) 0.001 gf) 1 × 10^9 g
Which of these changes most likely results in an increase in the volume of a gas? A0 Decreasing the pressure on the gas. B) Cooling the gas. C) Removing some of the gas form the sample.
Gold and helium are examples of a(n)
Which object would best be identified by a periodic Doppler shift in a star's spectrum along with a dip in the stars light intensity?a black hole a nebula a comment a planet
Is freezing water a physical or chemical change

The compound NacI is an example of a/an

Answers

The compound NaCI is an example of a salt. Salt is formed from a neutralization action of an acid and a base. From the type of reaction itself, we can say that the pH should be neutral or at pH 7.0. No matter what type of acid or base is used.

The compound NaCI is an example of a salt. Salt is formed from a neutralization action of an acid and a base.

Ionization refers to the process ofa. changing from one period to another.
c. turning lithium into fluorine.
b. losing or gaining protons.
d. losing or gaining electrons.

Answers

The ionizationor ionization energy is the process wherein the energy necessary to remove anelectron from the neutral atom. When located in the periodic table, itincreases across the row and decreases going down. The ionization energy isgreatest for the noble gases. For example, the ionization energy for fluorineis 1681.6 kJ/mol.  It means that it takes1681.6 kJ/mol of fluorine to completely remove an electron or ionize it. The answeris d. losing or gaining electrons.
it refers to the process of losing and gaining of electrons

In chemistry class, Allen determined the effectiveness of various metals in releasing hydrogen gas from hydrochloric acid. Several weeks later, Allen read that a utilities company was burying lead next to iron pipes to prevent rusting. Allen hypothesized that less rusting would occur with the more active metals. He placed the following into 4 separate beakers of water: (a) 1 iron nail, (b) 1 iron nail wrapped with an aluminum strip, (c) 1 iron nail wrapped with a magnesium strip, and (d) 1 iron nail wrapped with a lead strip. He used the same amount of water, equal amounts (mass) of the metals, and the same type of iron nails. At the end of 5 days, he rated the amount of rusting as small, moderate, or large. He also recorded the color of the water. What is the independent variable?a) the amount of water
b) the metals strips
c) amount of rust
d) hydrochloric acid

Answers

Answer:

b) the metals strips

Explanation:

In an experimental design, an independent variable is a variable that is changed or manipulated in a series of experiments. An independent variable is not dependent on any other variable in the experiment. The hypothesis for this experiment is stated to be: "If the chemical activity of the metallic wrapper is increased, then less rusting of iron will occur. The independent variable relates to the type of metal wrapping strip, and the dependent variables are the amount of rusting and color of the water.

How does the Atomic theory
impact our understanding of the universe?

Answers

Answer:Atomic theory established that all matter is made of tiny particles, a discovery that led to amazing scientific breakthroughs in areas from modern chemistry to nuclear energy.

Explanation:Atomic theory is the scientific theory that matter is composed of particles called atoms. Atomic theory traces its origins to an ancient philosophical tradition known as atomism.

The spontaneous decay of an atom is called(1) ionization (3) combustion
(2) crystallization (4) transmutation

Answers

The spontaneous decay of an atom is known as transmutation.  

• The conversion of one chemical element or an isotope into another chemical element is termed as nuclear transmutation.  

• It takes place in any process where the number of neutrons or protons in the nucleus of an atom is changed.  

• It is the spontaneous decay of an atom.  

• Transmutation can be attained either by radioactive decay or by nuclear reactions. In radioactive decay no external cause is required, while in nuclear reactions an external particle reacts with a nucleus.  

• One kind of natural transmutation is witnessed when some kind of radioactive elements found in nature spontaneously decay by a procedure that leads to transmutation like beta or alpha decay.  

Thus, the correct answer is option 4, that is, transmutation.

To know more about:

brainly.com/question/2521282
Transmutation is the Spontaneous / sudden decay of an atom. 

According to the law of conservation of energy, the energy released by the system must be transferred to and absorbed by the surroundings

Answers

True! 
 Energy released by system is absorbed by surroundings.
Other Questions
How many total electrons can be contained in the 4d sublevel? 261014
Calculate the amount of energy released in the formation of one mole of BaSe bonds (not lattice energy). The radius of the barium ion is 1.35 Å, and the radius of the selenide ion is 1.98 Å. Note that 1Å=10−10m.
Given the balanced equation representing a reaction:Zn(s) +H2SO2(aq) ==> ZnSO4(aq) + H2(g)What type of reaction is represented by this equation? (1) decomposition (3) single replacement (2) double replacement (4) synthesis
Why is Neon in the same group of the periodic table as Helium?