Answer:
positive charged
Explanation:
nucleus is made up of protons and neutrons. Protons have a positive charge and neutrons have a neutral charge. Since a neutral charge won't cancel out a positive charge, the overall charge of a nucleus is positive.
Answer:
Los átomos están constituidos por un núcleo y una corteza(órbitas) En el núcleo se encuentran muy firmemente unidos los protones y los neutrones. Los protones tienen carga positiva y los neutrones no tienen carga. Alrededor del núcleo se encuentran las órbitas donde se encuentran girando sobre ellas los electrones. Los electrones tienen carga negativa.
Ambas cargas la de los protones(positiva) y la de los electrones(negativa) son iguales, aunque de signo contrario.
La carga eléctrica elemental es la del electrón. El electrón es la partícula elemental que lleva la menor carga eléctrica negativa que se puede aislar. Como la carga de un electrón resulta extremadamente pequeña se toma en el S.I.(Sistema Internacional) para la unidad de Carga eléctrica el Culombio que equivale a 6,24 10E18 electrones.
Para denominar la carga se utiliza la letra Q y para su unidad la C.
Ejemplo: Q = 5 C
En la tabla adjunta se muestra la masa y la carga de las partículas elementales.
Predict what will observe in below mention experiment.
Rock candy is formed when excess sugar is dissolved in hot water followed by crystallization. A student wants to make two batches of rock candy. He finds an unopened box of "cane sugar" in the pantry. He starts preparing batch A by dissolving sugar in of hot water (). He keeps adding sugar until no more sugar dissolves in the hot water. He cools the solution to room temperature. He prepares batch B by dissolving sugar in of water at room temperature until no more sugar is dissolved. He lets the solution sit at room temperature.
a. It is likely that more rock candy will be formed in batch A. It is likely that less rock candy will be formed in batch A.
b. It is likely that no rock candy will be formed in either batch.
c. Two samples of water are drawn from a deep well bored into a large underground salt deposit.
d. I need more information to predict which batch is more likely to form rock candy.
Predict what will be observed in each experiment below. Rock candy is formed when excess sugar is dissolved in hot water followed by crystallization. A student wants to make two batches of rock candy. He finds an unopened box of "cane sugar" in the pantry. He starts preparing batch A by dissolving sugar in 500 mL of hot water (70 degree C). He keeps adding sugar until no more sugar dissolves in the hot water. He cools the solution to room temperature. He prepares batch B by dissolving sugar in 500 mL of water at room temperature until no more sugar is dissolved. He lets the solution sit at room temperature
a. It is likely that more rock candy will be formed in batch A.
b. It is likely that less rock candy will be formed in batch A.
c. It is likely that no rock candy will be formed in either batch.
d. I need more information to predict which batch is more likely to form rock candy.
Answer: Option A
Explanation:
More rock candy will be formed in the batch A because it is dissolved in hot water and less rock candy will be formed in batch B because the water is not hot.
Formation of the candies require hot water as the solubility of sugar is more in hot water as compared to normal water.
The sugar will be dissolved in water until the time all the space is filled sugar molecules.
Hence, the correct answer is Option A.
Classify these substances as acidic, basic, or neutral: vinegar, baking soda, tomato juice, sugar. A) vinegar-acidic Baking soda-basic Tomato juice-acidic Sugar-neutral B) vinegar-basic Baking soda-neutral Tomato juice-basic Sugar-acidic C) vinegar-neutral Baking soda-neutral Tomato juice-neutral Sugar-basic
Answer:
A) vinegar-acidic Baking soda-basic Tomato juice-acidic Sugar-neutral.
Explanation:
Hello,
In this case, it is widely acknowledged that vinegar is a diluted and processed form of acetic acid which is of course acidic as well as tomato juice which has a pH of about 4.2. Baking soda, which is chemically known as sodium bicarbonate has a pH greater than 7, for that is reason it is basic. Finally, sugar, is known by its neutrality, for which its pH is about 7, for that reason it is neutral. In such a way, answer is A) vinegar-acidic Baking soda-basic Tomato juice-acidic Sugar-neutral.
Regards.
Answer:
hi, hope this help's
I think the correct answer from the choices listed above is option A. The correct classification of the substances above would be:
Vinegar - acidic - it is acetic acid so it must be acidic
Baking soda - basic - it is sodium bicarbonate, a chemical with a basic (high) pH
Tomato juice - acidic - this juice contains some organic acids
Sugar - neutral - does not dissociates or contribute H+ or OH- ions to a solution
