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grandymaker [24]
3 years ago
9

Reactions in Our World Lab Report

Chemistry
2 answers:
Andreas93 [3]3 years ago
4 0

Answer:

I predict the reaction between __Fe___ and __CuSO___ will yield a _____single replacement_____ reaction/s.

I predict the reaction between ___ Pb(NO3)2__ and __ Kl___ will yield a _____ double replacement_____ reaction/s.

I predict the reaction between ___Mg__ and __HCI___ will yield a ____Single replacement______ reaction/s.

I predict the reaction between __ electrolysis___ and _____ will yield a ____ decomposition______ reaction/s.

I predict the reaction between __ Mg___ and __ O2___ will yield a ____ synthesis and inorganic combustion______ reaction/s.

Explanation:

snow_tiger [21]3 years ago
3 0

Answer:

I predict the reaction between iron and copper will yield a single replacement reaction/s.

I predict the reaction between nitrate and potassium will yield a single displacement reaction/s.

I predict the reaction between magnesium metal and hydrochloric acid will yield a single replacement reaction/s.

I don't know the last two :/

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How do you balance this:<br> Br2 + H2O + SO2 = HBr + H2SO4
pochemuha

Answer:

Br2+ 2H2O + SO2= 2HBr + H2SO4

Let's Compare the left side of the equation to the right side of the equation.

Left: Br= 2, H= 2, S= 1, O = 1+2

Right: Br=1, H= 1+2, S=1, O= 4

We can see that only S is balanced and not the other 3 elements.

I'll try to make each element balance.

For Br; I'll multiply by 2 on the left to make it equal to the right.

For H; Since the 2 for Br on the right affected also H, that H ( for HBr) Already has a 2, but then it adds with the other H2( for H2SO4) to give a total of 4 H on the right side. But then there's only 2 H on the left. so we multiply that 2 by a 2 ( which is written infront of the H2O to give a total of 4 H on the left side.

For O; Because of the 2 infront of the H2O, it affects the O in H2O..so now we have 2 O plus the 2 O ( in SO2) to give a total of 4 O which is equal to the right side.

6 0
3 years ago
What happens to the energy needed to remove an electron as the atomic number increases across a period?
lora16 [44]

Answer:

In general, the energy needed to remove an electron (the ionization energy) increases as the atomic number increases across a period.

Explanation:

Each additional proton increases the attraction between the nucleus and the electron.

Thus, it takes more energy to remove an electron as you add extra protons.

4 0
4 years ago
Orbital structure of sodium?
algol13

Answer:

na.

sodium

11( 2,81,)

pls Mark me as brainlest

5 0
3 years ago
PLEASE HELP
lozanna [386]

Answer:

The Answer is A

Explanation:

particles in gas much like any other particles vibrate. but gas is moving constantly so the answer would be A

5 0
3 years ago
Please select the word from the list that best fits the definition
Nastasia [14]

Answer:

The answer is B(scale)

Explanation:

Since the question asked about a range, the scale would be the most logical answer since scales are used to measure.

6 0
4 years ago
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