as the bright sun shines upon the water the water slowly disappears the same sunlight gives energy to the surrounding plants to convert water and carbon dioxide into sugar and only oxygen gas which change is a physical and which is chemical
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The chemical changes is when the plants absorb the energy from the sunlight and convert water and carbon dioxide into sugar and oxygen gas. Physically nothing has changed. The plant still looks the sam changes occur internally these internal changes are chemical in nature.
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B) What happens to the soup water when elisya blows it harder with the soap bubble blower
NEED URGENT HELP WITH SCIENCE HOMEWORK. TRIED MY BEST TO FIGURE OUT BUT COULDNT. I WILL MARK YOU BRAINLIEST!!Morains aredepositional material covered up when a glacier formsdeposition material exposed after a glacier retreatsdepositional material on top of a glacierWhich of the following is a feature of old glacial areas?Limestone pavementDesertsFjordsWhich of the following is required for karst topography?limestone rock is exposed to the surfaceprecipitation is adequate for the necessary chemical reactions to occurboth of the aboveWhich of the following causes most coastal erosion?WindWavesBiological activityWhich of the following statements is false about constructive waves on coastal shorelines?Constructive waves carry sand to the shorelineCompared waves deposit sand on the shorelineConstructive waves are the major contributor to beach erosionThe fetch is the water that washes up on a shore after the breaking of a wave.TrueFalseWave refraction, the bending of waves as they approach an island, is the process responsible for the formation of bays.TrueFalseThe subtropical zones are ________ because they are influenced by dry descending air.dry desertswarm tropicscold tundraIn humid climates, dense vegetation discourages wind erosion.TrueFalse
Is O2 a element or a compound
A 2-kg bowling ball is 2.5 meters off the ground on a post when it falls. Just before it reaches the ground, it is traveling 7 m/s. Assuming that there is no air resistance, which statement is true?The initial potential energy is less than the final kinetic energy. The intial potential energy is greater than the final kinetic energy. The mechanical energy is conserved. The mechanical energy is not conserved.
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The tying results in the more visible veins of upper arms due to blood flow restriction.
Veins are the part of circulatory system in the body, that functions to carry deoxygenated blood from different parts of the body to the heart.
The venipuncture has been the process of insertion of drugs or chemicals in a body through vein. The veins of the upper arm has been tied to make them more visible.
The upper arm veins are more visible as there has been blood flow restriction in the veins by tying that results in the bulging out of the vein.
For more information about veins, refer to the link:
B. Density
C. Melting point
D. Color
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Answer : The properties which would be the same among isotopes of the same element are Flammability and Color
Explanation :
Isotopes are the elements that have same number of electrons and protons but they differ in number of neutrons.
The chemical properties of an element are determined by its valence electrons and since isotope have same number of electrons, they have similar chemical properties.
But isotopes have different number of neutrons. Neutrons are the subatomic particles which are present in the nucleus. They are charge less particles and they have mass. Therefore when the elements have different number of neutrons, their atomic masses differ.
As a result, isotopes have different mass related physical properties.
Let us discuss the given properties now
1) Flammability : Flammability in simple words means the ability of the substance to catch fire or the ability to burn. This is mainly dependent on the reactivity which is in turn dependent on the number of electrons.
Since the isotopes have same number of electrons, they show similar flammability.
2) Density : Density is defined as mass per unit volume. This property involves mass and we know that isotopes have different masses. Therefore they have different densities too.
3) Melting point : Melting point is a physical property which is mainly dependent on the molecular weight of the substance. Since isotopes have different masses, they tend to show different melting points.
4) Color : The color of the element is mainly dependent on the arrangement of electrons around the nucleus. Isotopes have same number of electrons which means the arrangement would also be the same. Therefore the isotopes of the same element do not show different colors.
The properties which would be same among isotopes of the same element are
1) Flammability
4) Color
Answer: D. Color
Explanation: Founders Educere answer.
So much for expert verified^^ smh
A. Subsonic speeds
B. Fire
C. A combustion reaction
D. Sonic booms
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F=force.
m=mass
a=acceleration
Data:
m=1.5 Kg
a=6 m/s²
F=1.5 kg x 6 m/s²=9 Newtons.
answer: the force will be 9 Newtons.
B: To determine the color of the minerals
C: To classify minerals
D: To identify minerals
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and D. to identify minerals
Answer: D: Identify minerals
Explanation: If you can figure out the chemical makeup or the use of a mineral, you can identify what kind of mineral it is.
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Answer:
Caustic Soda
Limewater
Milk of Magnesia
Bleach
Explanation: