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Diano4ka-milaya [45]
3 years ago
7

When an alkali metal is involved in a chemical reaction with a nonmetal, what charge will its atoms most likely form? 1- 2- 2+ 1

+
Physics
1 answer:
seraphim [82]3 years ago
7 0

Answer:

+1 ion

Explanation:

Alkali metals are metals that are found in Group I of the periodic table. Their electronic configuration is such that their valence shell in grounds state is always holding only one electron which they always lose when reacting with non-metals. A loss in an electron makes the atom electrically imbalanced and hence becoming a +1 ion.

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The spring in the muzzle of a child's spring gun has a spring constant of 730 N/m. To shoot a ball from the gun, first the sprin
Korolek [52]

Answer:

a. V=11.84 m/s

b.x=0.052m

Explanation:

a).

Given

K=730 N/m,m=0.053kg, h=1.90m.

v_f^2=v_i^2+2*g*h

v_i^2=2*g*h=2*9.8m/s^2*1.9m

v_i=\sqrt{2*9.8m/s^2*1.9m}=\sqrt{37.24 m^2/s^2}

v_i=6.1 m/s

v_i=V*sin(31)

V=\frac{v_i}{sin(31)}=\frac{6.1m/s}{sin(31)}

V=11.84 m/s

b).

K_k=\frac{1}{2}*K*x^2

No friction on the ball so:

x^2=\frac{2*K_k}{K}

x=\sqrt{\frac{2*0.053kg*9.8m/s^2*1.9m}{730N/m}}

x=\sqrt{2.7x10^{-3}m^2}=0.052m

5 0
3 years ago
How does work affect energy between objects so it can cause a change in the form of energy?
mihalych1998 [28]

Answer:

Doing work' is a way of transferring energy from one object to another, energy is transferred when a force moves through a distance.

Explanation:  So more energy, more work done bc u transferred more energy to move the object and doing the work. and if you only use a little of energy, the work done also only a little.

5 0
3 years ago
Read 2 more answers
What is the smallest resistance you can make by combining them?
Luda [366]

Answer:

166.67 ohm

Explanation:

Complete statement of the question is :

You have a collection of six 1.0 kO resistors. What is the smallest resistance you can make by combining them?

When we connect resistors in parallel, the combination resistance is always smaller than the smallest resistance value we combine.

Parallel Combination of resistances is given as

\frac{1}{R_{p}} = \frac{1}{R_{1}} +\frac{1}{R_{2}} +\frac{1}{R_{3}} + ....

where

R_{p} = Equivalent resistance

and R_{1} , R_{2}, R_{3} are resistances in parallel.

So for the above question, we have

R_{1} = R_{2} = R_{3} = R_{4} = R_{5} = R_{6} = 1 kohm = 1000 ohm

So parallel combination is given as

\frac{1}{R_{p}} = \frac{1}{R_{1}} +\frac{1}{R_{2}} +\frac{1}{R_{3}} +\frac{1}{R_{4}} +\frac{1}{R_{5}} +\frac{1}{R_{6}}\\\frac{1}{R_{p}} = \frac{1}{1000} +\frac{1}{1000} +\frac{1}{1000} +\frac{1}{1000} +\frac{1}{1000} +\frac{1}{1000}\\R_{p} = \frac{1000}{6} \\R_{p} = 166.67 ohm

So the smallest resistance is 166.67 ohm

8 0
4 years ago
) A neutral pion with rest mass 135MeV /c2 is traveling with speed 0.5c as measured in a lab. The pion then decays into two phot
Mashutka [201]

Answer: energy of photon = 96Mev or 1.536x10^-11 J

Wavelenght is 1.3085x10^-14

Explanation:

Detailed explanation and calculation is shown in the image below

4 0
4 years ago
What happens to a catalyst after a chemical reaction has occurred
jenyasd209 [6]
It goes away and goes off to catalyze more things. Imagine it like the priest of a wedding. S/He's just catalyzing the bond between two entities, and s/he will continue to do that, not having anything to do with the bond past its creation.
3 0
4 years ago
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