All categories

3 years ago

(this is science not chemistry)

Chemistry

2 answers:

Sergeeva-Olga [200]3 years ago

8 0

Answer:

it's a friction force

erma4kov [3.2K]3 years ago

4 0

I'm pretty sure ita A. acceleration

You might be interested in

If I have a +2 oxidation number do I give up or accept electrons?

sveticcg [70]

Answer:

Give up 2 electrons.

Explanation:

Is this ever a good question!!!

Electrons have a minus charge

Protons have a plus charge.

You need to understand it thoroughly. I used to explain it this way.

Suppose the protons and electrons are playing a game and the electrons commit a foul that leaves them with 2 men short.

That means there are 2 unguarded plus's around. The result is that the minuses have lost two men who are in the sin bin. (I watch a lot of hockey).

So a +2 means that the electrons have lost two of their players to penalties.

Put in the vocabulary of your question, you give up 2 electrons.

5 0

3 years ago

Of the five NASA space shuttles, which one flew the most missions?

Irina-Kira [14]

Endeavour is the youngest shuttle in NASA's orbiter fleet, and was built as a replacement for Challenger. The shuttle flew 25 missions over the course of its spaceflying career, logging a total of 122,883,151 miles (197,761,261 km) on its odometer. Endeavour launched on its maiden flight, STS-49, on May 7, 1992.

8 0

3 years ago

A 16.0 g sample of methane gas, CH4, the gas used in a chemistry lab, has a volume of 5.0 L at 27ºC. Calculate the pressure.

NeX [460]

Answer:

4.9 atm

Explanation:

convert 16.0g of CH4 to moles

16.0 g CH4 x 1 mol CH4/16.0 g CH4 = 1.00 mol of methane

convert the temp into Kelvins: 27 + 273 = 300.K

PV = nRT

(P) (5.0 L) = (1.00 mol) (0.0821 L atm/mol K) (300.K)

P = 4.9 atm

6 0

2 years ago

How many moles of aluminum oxide (Al2O3) are in a sample with a mass of 204. 0 g? 1. 000 2. 000 3. 0.

Aleks [24]

Answer:

1. 000.2

Explanation:

 aluminum oxide made of moles or atoms less then other elements need to decrease

6 0

3 years ago

All of the following are conductors of electricity except

butalik [34]

What are the choices?

7 0

4 years ago