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Natasha2012 [34]
3 years ago
12

If a black hole is invisible how can we determine when one is present

Chemistry
1 answer:
Gelneren [198K]3 years ago
8 0

Answer: you can’t

Explanation: i’m dumb too

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What is the mass of 7.895 x 10^23 atoms Ag?<br> Answer in units of g.
maxonik [38]

Answer:

141.4 g

Explanation:

N=Na(n)

N/Na=moles

moles*molarmass = mass

7 0
3 years ago
Suppose your bedroom is 21 ft long, 17 ft wide, and the distance from floor to ceiling is 7 ft, 6 in. You need to know the volum
umka21 [38]

Answer:

1. 75.82 m^3 (cubic meters)

2. 75820 L (Liters)

Explanation:

Given data

L = 21 FT

W = 17 ft

h = 7 ft 6 in

Calculation

Formula to calculate volume is:

     V= L×W×h

put the values in formula

      V = 21 ft × 17 ft × 7 ft 6 in

       V = 2677.5 ft

Now we will convert Cubic ft to cubic meters, as we know that 1 cubic meter is equal to 35.3147 cubic feet

      V (m^3) = 2677.5  ÷ 35.3147

      V (m^3) = 75.82 m^3

Now we will calculate liters

as we know that 1 cubic meter is equal to 1000 liters

so multiply the ans. with 1000

    L = 75.82 × 1000

    L = 75820 l

4 0
4 years ago
Electrons are located at fixed distances from the nucleus called
babymother [125]
<span>Electrons are located at fixed distances from the nucleus called electron orbitals, or also known as electron shells </span>
6 0
4 years ago
Question 1<br> What is the most important factor that determines Earth's temperature?<br> I’m
sveticcg [70]

Answer:

The Sun is the primary source of energy that influences any planet's temperature, including Earth. The amount of energy received from the Sun is called insolation; the ratio reflected is called the albedo.

Explanation:

;)

7 0
4 years ago
Consider the reaction X + Z ?
lions [1.4K]

Answer:

X2Z3

Explanation:

Based on the clues, X is a metal and Z is a non-metal.

X could be aluminum and Z would need to be an element from the oxygen family.

8 0
3 years ago
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