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brilliants [131]
4 years ago
5

The term overdose implies a/an

Chemistry
2 answers:
REY [17]4 years ago
6 0
I would go with C hope this helps
Sveta_85 [38]4 years ago
5 0
I would also go with C
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How many TOTAL atoms are in the following molecule? NaHCO3
blagie [28]

Answer:

NaHCO3 = No. of atoms are 1 sodium + 1 Hydrogen + 1 carbon + 3 oxygens = 6 atoms per molecule.

6 0
3 years ago
PPPLLLLLLSSSSSSS HELP ME
denis23 [38]

Answer:

what grade are you in

Explanation:

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8 0
3 years ago
mosquitoes get their food by sucking other animals blood, sometimes giving it disease. what type of symbiosis is this.
Gala2k [10]
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3 0
3 years ago
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A student investigated the time taken for amylase to breakdown a 10% starch solution into glucose at
Mandarinka [93]

Answer:

Phenolphthalein is an indicator. It is pink in alkaline solutions and turns colourless as the pH decreases.

It can be used to measure the activity of the enzyme lipase on the breakdown of lipids.

Samples of milk containing phenolphthalein were incubated with lipase at different temperatures.

The time taken for the phenolphthalein to turn colourless was recorded and used to calculate the rate of enzyme activity.

Figure 10 shows these results.

Picture

(a) (i) Explain why phenolphthalein turns colourless when lipase breaks down the lipids in milk. (2)

(ii) Describe the effect of temperature on the activity of lipase, as shown in Figure 10. (2)

(iii) Explain why the activity of lipase changes above a temperature of 40°C. (2)

(b) A student investigated the time taken for amylase to breakdown a 10% starch solution into glucose at 37°C. The student repeated the investigation five times.

7 0
3 years ago
Calculate the percent by mass of a solution of Ca(NO3)2 that has 22.63 g dissolved in 896.92 g of water.
never [62]

Hey there!

To calculate the percent by mass of the Ca(NO₃)₂ we need to find the total mass first by adding.

896.92 + 22.63 = 919.55

In total, the solution is 919.55 grams.

To find the percent of Ca(NO₃)₂ in the solution, divide the mass of Ca(NO₃)₂ by the total mass and multiply by 100.

22.63 ÷ 919.55 = 0.0246

0.0246 x 100 = 2.46

Ca(NO₃)₂ makes up 2.46% of the solution.

Hope this helps!

6 0
4 years ago
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