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liraira [26]
3 years ago
5

Why don't siblings look exactly alike

Chemistry
1 answer:
marusya05 [52]3 years ago
3 0

Answer:

Your genes play a big role in making you who you are. ... But brothers and sisters don't look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.

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When the burner in a hot air balloon is turned on, the temperature of the air in the balloon ________ causing its volume to ____
raketka [301]

B) increases, expand, rises

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4 years ago
Are biohazard people real or just video games?
Nadusha1986 [10]

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Yes, they are real.

Explanation:

Can a human be a biohazard?

Biohazards are any material that can possibly contain infectious diseases. For example, human feces can contain diseases such as C. diff, Hepatitis A and E, Giardia, E coli, Cholera, and Norovirus so, yes, human feces are a biohazard.

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Please help !!!!!!!!
Salsk061 [2.6K]
1) CH2 (gas) + Br (solid) -> BrC (solid) + H2 (gas)
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2) b) methane + bromine is substitution because one hydrogen atom from methane is replaced by one bromine atom. addition reaction takes place when one molecule combines with another to form a larger molecule so therefore a molecule from X and bromine combine to form XBr.
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2 years ago
Which element is being represented by the electron configuration below? [Ar] 4s2 3d3
Nina [5.8K]
Answer:
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3 years ago
How many moles of KBr are present in 500 ml of a 0.8 M KBr solution?
faltersainse [42]

Answer:

2) 0.4 mol

Explanation:

Step 1: Given data

  • Volume of the solution (V): 500 mL
  • Molar concentration of the solution (M): 0.8 M = 0.8 mol/L

Step 2: Convert "V" to L

We will use the conversion factor 1 L = 1000 mL.

500 mL × 1 L/1000 mL = 0.500 L

Step 3: Calculate the moles of KBr (solute)

The molarity is the quotient between the moles of solute (n) and the liters of solution.

M = n/V

n = M × V

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4 0
3 years ago
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