How many nitrogen atoms are present in calcium nitrate, Ca(NO3)2? A) 6. B) 3. C) 2. D) 1

Answers

Answer 1

Answer: we are given the compound calcium nitrate, Ca(NO3)2 and is asked for the number of atoms of nitrogen present. In this compound given, there are 1 atom of calcium, 2 atoms of nitrogen, and 6 atoms in total of oxygen. Hence the answer to this problemis C. 2

Answer 2

Answer: Ca(NO3)2

Ca = 1 atom

O = 6 atoms

N = 2 atoms

Answer C

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How does the skin help regulate body temperature?

HELP FAST

Answers

Answer:

1. The body's immense blood supply (when blood vessels dilate or become larger heat loss occurs) When the blood vessels constrict it holds in heat

2. The skins blood supply also helps maintain body temperature (helps maintain homeostasis which is the "normal" state of our body)

3. Humidity in the air effects thermoregulation (heat regulation in the body) by limiting sweat evaporation (usually sweat evaporates into the environment when the humidity is low because the air has low "water levels" per say while you have high "water levels" because of your sweat

The slope of a speed time indicates

Answers

The slope of a peed versus time graph indicates acceleration. You can prove this by the fact that slope is Δy/Δx and the units for y are m/s and for x are s which means that the slope has the units (m/s)/s which are the same units used for acceleration.
I hope this helps. Let me know in the comments if anything is unclear.

HELP 2. The Kinetic Energy of a particle can be represented by _______________.
(2 Points)
A. mass x speed
B. 1/2 mass x velocity
C. mass x velocity
D. 1/2 mass x velocity squared

Answers

Answer:

Explanation:

Which describes a way to speed up the collisions between hydrogen and oxygen molecules to produce more water?

Answers

Equation:2H2(g) + O2(g) → 2H2O(g)

Smaller container means less volume, and the molecules will hit the walls of the container more frequently because there's less space available and the pressure will go up. I guess this would mean that the side with fewer moles would be favored as a result. We count the number of moles on the reactants and products and find that there are fewer moles on the product side, so I guess this would favor the product formation.

Equation:2H2(g) + O2(g) → 2H2O(g)

Smaller container means less volume, and the molecules will hit the walls of the container more frequently because there's less space available and the pressure will go up. I guess this would mean that the side with fewer moles would be favored as a result. We count the number of moles on the reactants and products and find that there are fewer moles on the product side, so I guess this would favor the product formation.

Stained glass can be useful for _____________________a. transmitting light and displaying colorful images.
b. churches to draw in new patrons who want to view its beauty from inside.
c. reflecting and absorbing light, as well as displaying colorful images.
d. creating mirrored images of light and colors on the surrounding walls of a religious structure.

Answers

Stained glass can be useful for churches to draw in new patrons who want to view its beauty from inside.

What is stained glass?

Stained glass is defined as a glass material which is made colored by means of adding metallic salts during the manufacturing process which imparts color to the glass.

These are used in many decorative purposes like decorating windows . The colors are imparted to the glass by mixing metal oxides into the colorless glass in its melted state.Sometimes fusion of a colored glass with a plain glass to make a stained glass is also used.

Stained glass is also prepared by glass paint where in streaks are introduced in glass by means of light firing in a furnace or a kiln.Silver stain is a range of compounds where in silver compound are mixed with binding substances and then applied to surface of glass,which are then fired in a furnace or in a kiln.

Learn more about stained glass,here:

brainly.com/question/29775274

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A. transmitting light and displaying colorful imaged.

Identify the isotope that has atoms with 28 neutrons, 23 protons, and 23 electronsA. ^28 Ni
B. ^23 V
C. ^23 Mn
D. ^51 Sb
E. ^51 V