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ioda
3 years ago
12

A ? has a definite ratio of components

Chemistry
1 answer:
Leto [7]3 years ago
5 0
Need more information
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According to kelper, which planet travels the fastest.
damaskus [11]
It’s probably Mercury I’m not sure
6 0
3 years ago
In cats,short hair is dominant to long hair. If a heterozygous short-haired cat is crossed with a homozygous long haired cat,wha
Gnoma [55]

Answer: 50% will have short hair

Explanation: The allele for a heterozygous dominant short hair is ( Ss ) and the allele for the homozygous long hair which is the recessive trait is ( ss ).

If we cross these alleles the results will be.

s s

S Ss Ss

s ss ss

The results will have 50% Heterozygous dominant short hair and 50% Homozygous recessive long hair.

7 0
3 years ago
30.5 g of sodium metal reacts with chlorine gas to produce sodium chloride. How much (in grams) chlorine gas must react with thi
Lena [83]

Answer:

Mass of chlorine = 47.22 g

Explanation:

Given data:

Mass of sodium = 30.5 g

Mass of chlorine= ?

Solution:

Chemical equation:

 2Na + Cl₂      →      2NaCl  

Number of moles of Na:

Number of moles = mass/molar mass

Number of moles = 30.5g/ 23 g/mol

Number of moles = 1.33 mol

Now we will compare the moles of Cl ₂ with Na from balance chemical equation.

                    Na            :              Cl ₂

                     2              :               1

                     1.33          :            1/2×1.33 = 0.665 mol

Mass of chlorine gas:

Mass = number of moles × molar mass

Mass = 0.665 mol × 71 g/mol

Mass = 47.22 g

6 0
3 years ago
Which one of the following scenarios accurately describes a condition in which resonance can occur? A. A column of air has a hei
bixtya [17]

The correct answer from the choices is: D

Resonance is an event where an external force or vibration moves another system to oscillate with higher amplitude at certain frequences or there is a transfer of energy between two or more different storage modes. 


7 0
3 years ago
a lizard drinks water that contains H-2. The H-2 decays and approximately 6.25% remain after 30 seconds. What is the 1/2 life fo
den301095 [7]

Answer:

7.5 sec.

Explanation:

A = A₀e⁻^kt => k = ln(A/A₀)/-t => ln(6.25/100)/-30s = 0.0924 s⁻¹

k·t₀.₅=0.693 => t₀.₅=0.693/k = (0.693/0.0924)s = 7.5 s

3 0
3 years ago
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