Producer is the one that produces energy, or food. They are also called autotrophs. So your answer is Grass, because grass gets energy from the sun to produce glucose, or sugar. The mouse, caterpillar, and eagle all need this food to survive, because they cant make their own food.
Answer:
XY would have a higher melting point than NaCl.
Explanation:
The electrostatic force (F) between ions in an ionic lattice can be estimated using Coulomb's Law.

where,
k is the Coulomb's constant
q₁ and q₂ are the charges of the ions
r is the distance between the ions
X⁺⁺ and Y⁻⁻ are doubly charged with respect to Na⁺ and Cl⁻ so the force between them is 4 times the force between Na⁺ and Cl⁻. Since the force is stronger, it would require more energy to break it to take it to the liquid state, so a higher melting point is expected.
Answer:
it have 10 neutrons and it is Fluorine(F).
They attract because they have opposite charges