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2 years ago

Help….? Anyone? It’s a test. 99 points

Chemistry

2 answers:

Crazy boy [7]2 years ago

7 0

Answer:

Cyanobacterium

Explanation:

“Cyanobacterium” is the correct answer, as it has the kingdom bacteria in its name.

Naily [24]2 years ago

6 0

which organism is a member of Kingdom Eubacteria?

CYANOBACTERIUM

➜ are classified in the kingdom Monera. considered to be more closely related to bacteria and are no longer considered members of the plant family.

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ASAP!

Sav [38]

When a radioactive isotope releases an alpha particle, the atomic number of the atom is decreased by four.

So, the correct answer is B.

Hope this helps,

Davinia.

4 0

3 years ago

Calculate the mass of water produced when 7.26 g of butane reacts with excess oxygen

MaRussiya [10]

Answer:

11.3 g.

Explanation:

Hello there!

In this case, since the combustion of butane is:

$C_4H_{10}+\frac{13}{2} O_2\rightarrow 4CO_2+5H_2O$

Thus, since there is a 1:5 mole ratio between butane and water, we obtain the following mass of water:

$m_{H_2O}=7.26gC_4H_{10}*\frac{1molC_4H_{10}}{58.14gC_4H_{10}}*\frac{5molH_2O}{1molC_4H_{10}} *\frac{18.02gH_2O}{1molH_2O}$

Therefore, the resulting mass of water is:

$m_{H_2O}=11.3gH_2O$

Best regards!

4 0

3 years ago

ASAP someone help ASAP

Sonbull [250]

sunlimation is when a solid goes to a gas thats all i can awnser i havent got that far in chemistry yet.

4 0

3 years ago

Which of the following elements have properties similar to those of strontium (Sr)

dalvyx [7]

D
because they are elements in the same group as strontium

8 0

3 years ago

Read 2 more answers

If it takes 100 N to move a box 5 meters, what is the work done on the box?

JulijaS [17]

<h3>Answer:</h3>

500 Joules

<h3>Explanation:</h3>

We are given;

Force is 100 N
Distance is 5 m

We are required to calculate the work done;

Work done is the product of force and distance.
That is, work done = Force × distance
Work is measured in Joules

Thus, in this case;

Work done = 100 N × 5 m

= 500 Joules

Thus, the work done in moving the box is 500 joules

8 0

3 years ago