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3 years ago

Pls help this is due in 10 minutes can someone tell me question 4

Chemistry

1 answer:

Veronika [31]3 years ago

5 0

Answer:

Then the person will only have the dominant trait. There needs to be two recessive genes in order for that gene to appear.

Explanation:

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Electron transfer is the term for this process. The resulting anion and cation are attracted by Coulombic forces and an ionic co

Nitella [24]

<h2>The compound formed is NaCl and $CaCl_{2}$ </h2>

Explanation:

PART 1:

Atomic number of sodium is 11.
Sodium(Na, Z = 11, Group 1A) will lose 1 electron to become $Na^{1+}$ which is isoelectronic to Neon (Ne ,Z = 10).
The symbol for the sodium ion is $Na^{+}$ .
Chlorine atom ( $Cl$ , Z = 17, Group 7A or 17) gains 1 elecron to be isoelectronic to neon.
The symbol for the compound formed is NaCl.
PART 2:
Atomic number of calcium is 20
Calcium(Ca, Z = 20 ,Group 2A) will lose two electrons to become $Ca^{2+}$ which is isoelectronic to argon.
The symbol for the ion is $Ca^{2+}.$
Two chlorine atoms (Cl, Z = 17, Group 7A or 17) each gains one electron to be isoelectronic to argon(Z = 18)
The symbol for the compound formed is $CaCl_{2}$ .

8 0

4 years ago

The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high tide and low tide occurring

topjm [15]

The rate in m/s is 5.2 * 10^-4 m/s.

We know that the speed is given as the ratio of the distance covered to the time taken. In this case, we have been told that the rate at which the tide rises is 6.08 ft per hour. We would now need to convert the rate from 6.08 ft per hour to m/s.

Now;

We know that;

1 foot/hour = 8.5 * 10^-5 m/s

6.08 ft per hour = 6.08 ft per hour * 8.5 * 10^-5 m/s/1 foot/hour

= 5.2 * 10^-4 m/s

Learn more about speed:brainly.com/question/28224010

#SPJ1

3 0

2 years ago

What is the molarity of a solution containing 9.0 moles of solute in 2500 ml of a solution

Lena [83]

M=(mols/L) so M=(9.0/2.5) which is 3.6M

7 0

3 years ago

Arrange the following substance into acid,base and neutral. sodium chloride, tomato juice, vinegar,sea water,bicorbonate of sodi

pantera1 [17]

Answer:

sodium chloride: neutral.

tomato juice: acid.

vinegar: acid.

sea water: base.

bicarbonate of sodium: base.

Explanation:

Hello there!

In this case, in agreement to the definition of the pH, as the measure of the acidity and basicity of a substance; it is important to recall that pH's below 7 stand for acidic substances and pH's above 7 stand for basic substances, whereas a pH of 7 defines a neutral one. In such a way, given the pH's of the given substances, 7, 4.05 to 4.65, around 2.5, about 8.1 and about 8.3 respectively for sodium chloride, tomato juice, vinegar, sea water, bicarbonate of sodium, it is possible to assert:

sodium chloride: neutral.

tomato juice: acid.

vinegar: acid.

sea water: base.

bicarbonate of sodium: base.

Best regards!

3 0

3 years ago

An example of a homogeneous mixture is 1. oil and vinegar dressing. 2. concrete. 3. a mixture of salt and pepper. 4. salt water

Sidana [21]

A mixture in which composition is constant throughout the mixture is said to be homogeneous mixture.

Now, oil and vinegar dressing is not considered as a homogeneous mixture because composition is not uniform.

Concrete is made up of three components. Thus, composition is not uniform, so it is not a homogeneous mixture.

A mixture of salt and pepper, when salt is mixed in pepper then the mixture is not uniform as white flecks of salt and black flecks of pepper can be seen in the mixture. Thus, it is not a homogeneous mixture.

Salt water is uniform mixture. Thus, it is a homogeneous mixture.

Thus, salt water is the correct answer.

4 0

4 years ago