Answer:
good insulators; poor conductors
brittle
malleable and ductile
good conductors of heat and electricity
26.98
protons/neutrons
Nobel Gases
Ion
Nucleus
negative
silicon and carbon
6 protons and 8 neutrons
6 protons and 7 neutrons
Atomic Number
Neutral atom
No, because protons identify the atom
2
brittle, shiny nd solid at room temperature, semiconductor
6
mass number
+2
-2
They only need one more electron
Negative ion
reactivity, ion formation
all your answers were correct
The correct answer is option (B) lemon juice.
pH refers to the logarithmic scale used to indicate the acidity or basicity of an aqueous solution. It is the negative of the base 10 logarithm of the activity of the hydrogen ion. Solutions with a pH less that 7 are considered acidic and the solutions with a pH greater that 7 are considered to be basic. A pH of 7 is neither an acid nor a base and is considered neutral.
An acid has a high concentration of hydrogen ions (H+) and a base has a low concentration of hydrogen ions. Higher the hydrogen ion concentration, pH is acidic. Among the given substances, lemon juice has a pH of 2, urine has a pH of 6, tomato juice has a pH of 4 and black coffee has a pH of 5. Since lemon juice has a pH of 2, it has the lowest –OH ion concentration.
Answer: D. They must eat in order to gain nutrition
Explanation:
Answer:
C
Explanation:
Ecological relationships exist between organisms in an ecosystem. MUTUALISM is one of these ecological relationships in which both organisms involved benefits from the relationship. It usually occurs in a way that the actions of one favors the other.
In this example, the bees feed on nectar produced by the flower a plant and carries pollen along when it feeds on the nectar produced by the flower of another plant. The bees are getting fed, thanks to the plant, while the plant is getting cross-pollinated, thanks to the bee.
Fat found in blood and lymphatic fluid
