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Maru [420]
3 years ago
12

Use the drop-down menus to answer the questions.

Chemistry
1 answer:
babunello [35]3 years ago
7 0
Can you send a picture? That’s the only way I can see the problems

But, the producers should be on the bottom of the food chain, likely grass or something of the sort (plants)

If the frog has a line pointing to another organism, then that’s the organism that gains energy from eating it
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In a collision, a 25.0 kg mass moving at 3.0 m/s transfers all of its momentum to a 5.0 kg mass. What is the velocity of the 5.0
Trava [24]
Don’t press the link above me. It causes viruses
7 0
3 years ago
Strontium, a group 2 element with an electron configuration of 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 , will form a _____
amid [387]

Answer:

Strontium, a group 2 element with an electron configuration of 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² , will form a +2 ion in a chemical bond.

Explanation:

An ionic bond is produced between metallic and non-metallic atoms, where electrons are completely transferred from one atom to another. During this process, one atom loses electrons and another one gains them, forming ions. Usually, the metal gives up its electrons forming a cation to the nonmetal element, which forms an anion.

So an ion is an atom or group of atoms that have an electric charge. A cation is an ion that has a positive charge.

The alkali metals in the earth (Elements IIA) lose two electrons to form a 2+ cation. Strontium is an alkali metal that loses the two electrons belonging to 5s², forming the +2 ion.

5 0
2 years ago
Which element is a noble gas?<br> A. W<br> B. Ar<br> C. N<br> D. Er
inessss [21]
His the answer I hope it helps
3 0
3 years ago
Can somebody plz tell me which one I should circle for each question thanks!!!
marusya05 [52]

Answer:

1. False

2. True  

3. True

4. True

5. False

Explanation:

7 0
2 years ago
Read 2 more answers
7. List all of the variables that you controlled or kept the same.<br>Salt water​
satela [25.4K]

Answer:

Temperature is a common type of controlled variable. If a temperature is held constant during an experiment, it is controlled. Other examples of controlled variables could be an amount of light, using the same type of glassware, constant humidity, or duration of an experiment.

Explanation:

3 0
3 years ago
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