Maybe for the first the hand because there are so many joints that do so many movements and functions.
For the second, the tongue because there are so many taste buds that need to sense and taste and move.
I hope that helps, that's what I remember from elementary school. XD
2Na⁺ + CO₃²⁻ -> Na₂CO₃- the molecular formula for sodium carbonate
Ca²⁺ + 2NO₃⁻ -->Ca(NO₃)₂ - formula for calcium nitrate -
Ca²⁺ + CO₃²⁻ --> CaCO₃ - it forms calcium carbonate with formula
Na⁺ + NO₃⁻ -->NaNO₃ -formula for sodium nitrate -
the balanced chemical equation for the reaction is;
Na₂CO₃(aq) + Ca(NO₃)₂(aq) --> CaCO₃(s) + 2NaNO₃(aq)
correct answer is 4
The systems are geosphere ,hydrosphere, the atmosphere and the biosphere.
Answer:
If Earth's diameter doubled but density was similar to the old Earth, the planet's <u>mass would go up and gravity would be twice as strong</u>. That would instantly make <u>tides twice as much as it was before.</u>
Explanation:
brainliest please
Answer:
force is a push or a pull