1. What is a trend in space?

Answer:

LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right so yeah, it should work. if it doesnt im sorry! but yeah XD sub to my yt channel too! DB_PLAYS <3

Explanation:

Answer:

[tex]\boxed {\boxed {\sf Hepta}}[/tex]

Explanation:

We are given the formula:

[tex]PCl_5[/tex]

This is a molecular formula, because it contains nonmetals.

1. Name the first element

The first element is phosphorous (P). Since this is the first element and there is only one, we don't need a prefix.

2. Second element

The second element is chlorine (Cl). It has a subscript of 5, so we must add the prefix of hepta-.

Add the ending of -ide.

The prefix used for the second element is hepta. The compound name is phosphorous heptachloride.

Answer:

wait so what am I supposed to do

Answer:

Explanation:

Knowing locations of laboratory safety showers is important because you could have spilled some dangerous chemical on your skin. Knowing where the eye washing stations is important if you get something dangerous in your eyes. Knowing where the fire extinguisher is also important because if there is a fire and you cannot evacuate, you have a good chance of putting it out with the fire extinguisher. Knowing the emergency exit route is important because if there is a fire or something along those lines, you need to evacuate as soon as possible and not be searching for exits, you should be on the move.

Answer:

Using the coarse adjustment knob of the microscope in high power may lead to the breaking of the slide if adjusted and raised the slide too much which can damage the sample as well as the high power lens.

In this case, I would recommend using the fine adjustment knob and moving away from the end of the viewing area of the microscope so there would no collision take place. The fine adjustment will help to get a clear image.

Answer: gamma. it is extremely deadly to living tissue

Explanation:

Answer:

It's the first answer choice for sulfur and the second answer choice for magnesium I believe

Answer:

C

Explanation:

n= 7.7mol

P= 9120pa

T = 329.15K

PV=nRT

V= nRT/P

V= (7.7×8.314×329.15)/9120

V= 2.308meter cubic

V= 2308L

Answer:

Gases

Explanation:

Gases have the highest kinetic energy of any state of matter and thus occur at the highest temperatures. Increasing the temperature of a gas in an open system will not further change the state of matter because the gas molecules will only become infinitely further apart.

Answer:

Gas

Explanation:

There are many forms in which temperature increases, for example sublimation, (solid to gas) which is essentially vaporization which happens during a sub-like gas phase concluding the answer to gas.

Answer:

four

Explanation:

adenine, thymine, guanine, and cytosine

Answer:

The ship's wheel is an example of a wheel and axle. It creates a mechanical advantage for the sailor because she can apply a small force over a large distance by turning the big ship's wheel.

(please mark brainliest if it's correct <33)

Answer:

The answer is 54.2 seconds

Explanation:

If you divide 542 by 10 you get 54.2 which is then labeled as seconds.

Answer:

cl+ms=ClMs

Explanation:

just add them together it aint right btw

Answer:

you can ride a bus, ride a bike, or walk to prevent greenhouse gasses from entering the atmosphere causing global warming and climate change

Explanation:

Answer:

One way that can be very helpful is finding a way to capture carbon and bad fumes from the atmosphere which Elon Musk is offering 100 million dollars to whoever can find a way to do it !

Explanation:

Answer:

Bb rabbit

Explanation:

In an ecosystem , when a brown  "BB" rabbit  is crossed to a white "bb" rabbit offsprings with genotype Bb are produced.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

Learn more about ecosystem,here:

https://brainly.com/question/13979184

#SPJ6

Answer:

the answer is b

Explanation:

Answer:

74.35 g

Explanation:

The equation  of the reaction is given as;

2Al2O3 --> 4Al + 3O2

From the reaction;

2 mol of Al2O3 reacts to produce 3 mol of O2

Converting 2 mol of Al2O3 to mass;

Number of moles = Mass / Molar mass

Mass = Number of moles * Molar mass

Mass = 2 * 101.96 = 203.92 g

Converting 3 mol of O2 to volume;

1 mol = 22.4 L

3 mol = x

x = 22.4 * 3 = 67.2 L

This means 203.92g of Al2O3 produces 67.2L of O2

xg would produce 24.5 L of O2

203.92 = 67.2

x = 24.5

x = (24.5 * 203.92) / 67.2

x = 74.35 g

Answer:

The periodic table is a set of elements organized by their atomic number, from lowest (hydrogen 1) to highest (oganesson 118). That number is the amount of protons in the nucleus of an atom of the element. The table is split into three groups of elements (metals, nonmetals and metalloids). As you go down the table the elements are more reactive.

Explanation:

^^

Answer:

changing

different

Explanation:

[He] 2s² 2p⁴

Explanation:

just look it up

Answer:

[He] 2s² 2p⁴.................

Answer:

a item dropping

Explanation:

KE is movement and PE is height. As it's falling it gets KE and falls downward giving it more KE and less PE

Answer:

Explanation:

Trana make us pay for da answer smh

Answer:

violet

Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light. Ultraviolet (UV) light—is radiation with a wavelength shorter than that of visible light, but longer than X-rays, in the range 10 nm to 400 .

Explanation:

Answer:

True

Explanation:

...clutching am I.Sedimentary