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3 years ago

How to I answer this question! Not looking for the answers for the question just how to solve it myself!

Chemistry

2 answers:

Mrac [35]3 years ago

7 0

I have not taken Chemistry in a year but I remember that if you look at a periodic table there are certain sections for polar and non polar elements. I dont know if you have learned that yet

Arada [10]3 years ago

6 0

If you're studying electronegativity, somewhere in your textbook or lectures they probably will have shown you a periodic table with electronegativities on it. Find the difference between the two electronegativities of the elements in each bond and order them. Hope this helps!

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What is the first step of a ladybug during the growth and development process

Sunny_sXe [5.5K]

Answer:

Damian here! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

The newly hatched larva is in its first instar, a developmental stage that occurs between molts. It feeds until it grows too big for its cuticle, or soft shell, and then it molts. After molting, the larva is in the second instar. Ladybug larvae usually molt through four instars, or larval stages, before preparing to pupate.

Explanation:

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3 years ago

A rabbit takes in energy by consuming pine needles, clover, leafy weeds, etc. the rabbits use the majority of this energy to car

alekssr [168]

90% of energy is lost. only 10% is left.

therefore the answer is B. 90%

4 0

3 years ago

When 1.0 mole of MgSO4 is dissolved in water contained in a calorimeter, the temperature of the water and dissolved ions increas

KatRina [158]

Answer: negative , from , to , exothermic

Explanation:

An endothermic reaction is a type of chemical reaction in which energy is absorbed from the surrounding. The temperature of the surrounding decreases.

An Exothermic reaction is a type of chemical reaction in which energy is released into the surrounding. The temperature of the surrounding increases.

Endothermic reactions are those in which heat is absorbed by the system from the surroundings and exothermic reactions are those in which heat is released by the system to the surroundings. $\Delta H$ for Endothermic reaction is positive and

As on dissolution of salt, the temperature of water increases, the heat has been released from system into surroundings and thus $\Delta H$ is negative.

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3 years ago

11. What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are

photoshop1234 [79]

Answer: 1.284M NH3

Explanation: (12.23 grams)/(17.0 gramms/mole) = 0.7191 moles

Dissolved in 560.0 ml (=0.5600L)

(0.7191 moles)/(0.560L) = 1.284M (4 sig figs)

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2 years ago

30) weathering and erosion are examples of _____forces

marin [14]

A. Destructive forces

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3 years ago

Read 2 more answers