please help in this,it will be such a help,ASAP,and ill put u brianlist first one!!!!!,both questions

Answer:

to balance this equation, your going to put a 2 in front of the "Ca" then that makes the equation look like this  "2Ca + N2 ⟶ Ca3 + N2" since the "Ca" had one atom, we added two more atoms

as we all know 1 + 2 =  3

then that gives us 3 "Ca's" on both sides

hoped this help and good luck on your test! :D

Explanation:

Answer:

Explanation:

A

Answer:

The more farms the less the oxygen concentration levels. Farmers use fertilizers to increase crop growth. When algae die, bacteria break down their remains, using up the dissolved oxygen in the water. The rapid loss of oxygen, or eutrophication, can kill fish and other wildlife living in the pond or stream.

Explanation:

Answer:

The more farms the less the oxygen concentration levels. Farmers use fertilizers to increase crop growth. When algae die, bacteria break down their remains, using up the dissolved oxygen in the water. The rapid loss of oxygen, or eutrophication, can kill fish and other wildlife living in the pond or stream.

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Litmus is a natural dye which is extremely from lichens. it is the most commonly used indicator. Litmus is available in the form of blue and red litmus paper.

Answer:C

Explanation:

Answer:

D.

Explanation:

Got it right on my test, Trust me.

Answer:

Answer:

Newton's Third Law of Motion

Explanation:

A rocket expels hot gases at a very high pressure very quickly, and these gases have lots of energy, and according to Newton's third law, every action has an equal and opposite reaction. So, expel lots of gas at a high rate, and the energy of the gases being pushed out propels the rocket upward. Hope that helps!

Answer:

If your body manages to maintain homeostasis, then it means everything is in order, and you are in a healthy state. However, getting sick would indicate that your body conditions are not stable. This happens when the homeostasis is disrupted due to the interference of pathogens such as viruses and bacteria; for example, catching a flu virus would cause you to have a fever, cold, sore throat, and muscle aches. These symptoms eventually weaken your body and prevent you from performing your daily life functions.

The homeostasis has been affected while getting sick due to a change in temperature with disturbed electrolyte balance.

Homeostasis has been the ability of the body to maintain the equilibrium balance of the electrolytes, and elements for the proper functioning of the system.

The homeostasis has been maintained with the temperature and balance of the components in the preset limit. However with the change in the homeostasis results in the change in the balance and functioning of the organs.

While getting sick, we have changes in the body temperature along with electrolyte dis-balance. This results in disturbed homeostasis.

For more information about homeostasis, refer to the link:

https://brainly.com/question/9087319

Answer:

The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases. ... The amplitude of a wave is related to the amount of energy it carries. A high amplitude wave carries a large amount of energy; a low amplitude wave carries a small amount of energy.

Explanation:

have an amazing day luv

Answer:

The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases

Explanation:

Answer  c-7, h-5,a-0,n-1,0-3. This is the right form of the given context that can be arranged in the proper order. The pairs are completed in this order.

This automatically matches all the elements with its number that is found in one single molecule of C7H5NO3S which is also an artificial sweetener. Each element matches with the right number contained in one molecule of it.

Explanation:

Explanation:

It is written: ‘As surely as I live,’ says the Lord,

‘every knee will bow before me;

every tongue will acknowledge God.’

Romans 14:11

Answer:

B turns litmus paper blue

Explanation:

Answer:

a=2 b=1 c=3 im litterally takeing the quiz right now

Explanation:

Answer:

a=2 b=1 c=3

Explanation:

use your brain :)

Answer:

B) Carbon dioxide enters their leaves from the atmosphere.

Explanation:

Answer: I think the answer is A

Explanation:

Answer:

What are we supposed to do

Explanation:

Answer:

Ummm... wdym... comment

                                    ↓

Explanation:

Wire is typically made out of metal because metal is ductile and conducts electricity.

Ductility is the property of metal which makes it easy to be stretched into wire when drawn without breaking. This is a great feature for wires.

Conductor of  electricity : The ability for a material to allow electricity to pass through it with ease shows it is a good conductor of electricity.This is also a great feature for wires.

The transition metal, copper is usually  preferred for the manufacture of electrical wires This is because apart from being thermal resistant and cheap, it is very ductile and a good conductor of  electricity.

See more on the property of metals to make wires :https://brainly.com/question/13854828

Answer:

Dead plants fall in swamp → layers of dead plants pile up → plant matter is buried by rocks and dirt → plant matter is compressed and is exposed to heat → coal forms

Answer:

we'll, metal cups are usually used for coffee so people who bring their coffee to work from home can keep it warm. metal cups however do not keep things cold, it may feel cold on the outside, but that's an illusion. plastic doesn't do much, its just a cold insulator. it is good at keeping things cold because it is a poor heat conductor. foil can keep things warm, but it can also keep things cold. do what you will with the info lol.

Answer:

1.H & E

Explanation:

metal cups keep things hot and cup H is made to keep things both cold and hot but the other cups will melt if you put hot stuff in them and number three is an answer it your self because it says to enter your answer so........

²³√∛·×÷±≈≠≤≥≡≅⇒,⇔∈∉∧∨∞αβΔπФω↑↓∵∴↔→←⇵⇅⇄⇆∫∑⊂⊃⊆⊇⊄⊅∀°∠∡⊥∪∩∅¬⊕║∦∝∞㏒㏑

Answer:

agree

Explanation:

you cannot undo the reaction when you bake the cake

Answer:

The evidence that exists to support the idea that the composition of ocean water includes dissolved oxygen is that all water has oxygen in it.

Explanation:

Answer:

Fish get oxygen from water through their gills - they require oxygen to survive, so they have to be getting it from the water.

Explanation:

The concentration of dissolved oxygen and carbon dioxide are very important for marine life forms. Although both oxygen and carbon dioxide are a gas when outside the water, they dissolve to a certain extent in liquid seawater. Dissolved oxygen is what animals with gills use for respiration (their gills extract the dissolved oxygen from the water flowing over the gill filaments).

Answer:

Proton: Positive

Electron: Negative

Neutron: No charge

Answer:The solubility of oxygen and other gases will decrease as temperature increases 9. This means that colder lakes and streams can hold more dissolved oxygen than warmer waters. If water is too warm, it will not hold enough oxygen for aquatic organisms to survive.

Explanation:

Answer:

Agree

Hope this helps

Answer: metal denting

Explanation:

a physical change is something that can be undone. while chemical changes are relatively permanent. You can reshape the metal so you know it is physical.