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2 years ago

Can someon help me, i can give you a 25 points

Chemistry

2 answers:

wolverine [178]2 years ago

8 0

What do you need help on which problem

uysha [10]2 years ago

7 0

Answer:

1. option D titanium because metallic properties increases down the group .

2. option A potassium has the least malleable character due to top element of the group .

3. Option A transition elements are brightly colored .

4. Option D metallic trends are increase from right to left and top to bottom

5. Option A Conductivity will be the main concern for the mobility of free electrons during cooking

6.Option B Conductivity and ductility

7. Option B

Explanation:

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Do u ever fell like u ani't good enough for anybody

rjkz [21]

Answer:

Hello

Explanation:

tbh YES and it sucks bc ppl treat u like trash, but don't let that get into ur head just be you, you'll find someone who treats u as if u were literally a goddess, keep ur head up and dont worry.

your welcome! ^^

3 0

3 years ago

Read 2 more answers

You were instructed to add 1.0 mL out of 4.0 mL of an undiluted sample to 99 mL of sterile diluent. Instead, you add the entire

finlep [7]

Answer:

A.) Intended dilution factor : 0.01

B.) Actual dilution factor: 0.039

Explanation:

Dilution factor(DF) is ratio of the volume of the undiluted sample to total volume of diluted solution

A.) What was your intended dilution factor

This would be the the addition 1.0ml from 4.0ml to 99ml of sterile

Volume of sterile diluent = 99ml

Volume of Undiluted sample = 1.0ml

Total volume of diluted solution = 99ml + 1m = 100ml

Dilution factor = Volume of undiluted sample ÷ Total volume of diluted solution

Dilution factor = 1:100

= 1ml ÷ 100ml

= 0.01

B.) What was your actual dilution factor?

This would be the entire addition of 4.0ml to 99ml sterile diluent

Volume of sterile diluent = 99ml

Volume of Undiluted sample = 4.0ml

Total volume of diluted solution = 99ml + 4.0ml = 103ml

Dilution factor = Volume of undiluted sample ÷ Total volume of diluted solution

Dilution factor

= 4:103

= 4ml ÷ 103ml

= 0.039

8 0

2 years ago

If the mass is 6.5g, and the volume is 25mL.. what is the density? PLEASE ANSWER ASAP

julia-pushkina [17]

Answer:

p = 260 kilogram/cubic meter

Explanation:

ρ = $\frac{m}{V} \\$

= $\frac{6.5 g}{25mL}$

= 0.26 gram/milliliter

= 260 kilogram/cubic meter

7 0

3 years ago

Determine the formula weight of caffeine, C₈H₁₀N₄O₂. Provide an answer to two decimal places.

arlik [135]

Let's find

$\\ \tt\hookrightarrow C_8H_10N_4O_2$

We need accurate mass

$\\ \tt\hookrightarrow 8(12.011)+10(1.007)+4(14.006)+2(16.0)$

$\\ \tt\hookrightarrow 96.088+10.07+56.024+32.0$

$\\ \tt\hookrightarrow 196.182g/mol$

$\\ \tt\hookrightarrow 196.18g/mol\:or 196.18u$

5 0

2 years ago

Read 2 more answers

PLEASE HELP!!!!!!!

KonstantinChe [14]

Answer: The gas generated by two antacid tablets has a smaller volume.

Explanation:

Since the antiacid is the limiting reagent, we know that the more tablets there are, the more gas there will be.

This means that there will be more gas generated by the four antiacid tablets when compared to the two antiacid tablets, which gives us that the gas generated by the two antiacid tablets has a smaller volume.

6 0

2 years ago