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erastova [34]
3 years ago
14

Giving brainliest for whoever can answer all

Chemistry
1 answer:
Thepotemich [5.8K]3 years ago
8 0

Answer:

1. A

2.D

3.D

4.A

5.B

6.D

7.A

Explanation:

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What does this equation, 2 C(s) + O 2(g) ® 2 CO(g), tell us?
Zanzabum

Answer:

D. All of these.

Explanation:

For an equation to be balanced the number of atoms of each kind in the reactants and the products should be the same.

Then from this equation, CO  is a product.

Last, two carbon atoms undergo reaction with the oxygen molecule for complete reaction to occur. Each atom combines with one oxygen atom.

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Is centigrams or grams bigger.<br> example: which unit is larger.<br> 35cg or 35 g
sp2606 [1]

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35g

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T<br> Question 1<br> What is the chemical formula of cobalt(II) nitrite?
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3 years ago
CalcuLate the velocity of an electron ejected if 300.0 mm of light is applied to the surface. A wavelength of 795 nm has suffici
worty [1.4K]
The equation relating velocity and wavelength is written below:

v = λf
where λ is the wavelength in m while f is frequency in 1/s.

Let's determine first the frequency from the speed of light:
c = distance/time, where c is the speed of light equal to 3×10⁸ m/s
3×10⁸ m/s = (300 mm)(1 m/1000 mm)/ time
time = 1×10⁻⁹ seconds
Since f = 1/t,
f = 1/1×10⁻⁹ seconds = 10⁹ s⁻¹

Thus,
v = (795×10⁻⁹ m)(10⁹ s⁻¹)
v = 795 m/s
8 0
3 years ago
HELP JESUS CHRIST PLEASE ASAP
Kryger [21]

Answer:

What is a Metal ? Metals. Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals are malleable and ductile and are, in general, denser than the other elemental substances.

Explanation:

Metalloid, in chemistry, an imprecise term used to describe a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical nonmetal. ...

Definition: The non-metals are elements on the right of the periodic table

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