Chemistry High School

Can someone help please

Answers

Answer 1

Answer:

d. cells are made of atoms and molecules. :)

Explanation:

hope i helped

Answer 2

4th. Cells are made of atoms and molecules

Related Questions

Can someone tell me the answer plz plz I’ll give you brainlist and points plz This is my final test No wrong answers

Answers

Answer:

Energy can enter or exit an open system

Explanation:

Explain why the temperature of distilled water is kept at 37°C ?

Answers

At 37°C, the pH of distilled water is actually around 6.8, which means the human extracellular fluid is quite alkaline. However, the intracellular pH of the warm-blooded human is still around 6.8. This has been confirmed by various destructive and non-destructive measurements.
(I’m sorry if I responded too late! I hope it helps)

Answer:

the temperature of distilled water is kept at 37 because it needs to kill off some microbes.

A ball is moving at a speed of 6.70 m/s. If the kinetic energy of the ball is 3.10 J, what is the mass of the ball?

Answers

Answer:

0.14 kg

Explanation:

The mass of the ball can be found by using the formula

[tex]m = \frac{2k}{ {v}^{2} } \\ [/tex]

v is the velocity

k is the kinetic energy

From the question we have

[tex]m = \frac{2(3.10)}{ {6.70}^{2} } = \frac{6.20}{44.89} \\ = 0.138115...[/tex]

We have the final answer as

0.14 kg

Hope this helps you

3. (10 Points) Write a double replacement reaction where one of the products is
copper (11) oxide. Include the states of matter for each of the reactants and
products.

Answers

Answer:

Up to now, we have presented chemical reactions as a topic, but we have not ... A single-replacement reaction is a chemical reaction in which one element is ... single-replacement reactions will occur between two given reactants. This is ... Use the activity series to predict the products, if any, of each equation.

Explanation:

PLEASE HELP!!!! A solution contains 35 grams of sugar per liter of solution. How many grams of sugar are in 2.5 L?

Answers

87.5 I believe because it needs 2.5 L and we multiply 35 by 2.5 because 1 liter needs 35 grams

Compare the atomic radii of neutral atoms 7N,8O,11Na and 12Mg and expalin briefly

Answers

Okay that’s cooo and yeah basinsnsjeidnsjw12539484!( is the correct answer

help with this asap please

Answers

ΔH rxn = 434.7 kJ

Further explanation

Given

C+O₂⇒CO₂ ΔH=-393.5 (reaction 1)

2CO+O₂⇒2CO₂ ΔH=-566 (reaction 2)

2H₂O⇒2H₂+O₂ ΔH=483.6 (reaction 3)

Required

ΔH rxn

Solution

Reaction 1 : no change

C+O₂⇒CO₂ ΔH=-393.5

Reaction 2 : the reaction is reversed and divided by 2

CO₂⇒ CO+1/2O₂ ΔH=-283

Reaction 3 : divided by 2

H₂O⇒H₂+1/2O₂ ΔH=241.8

-------------------------------------------

C+H₂O⇒CO + H₂ ΔH rxn= -434.7 kJ

Is science logical please help meeeeeee

Answers

Answer:

It kind of is logical so my answer is yes

Yes science is logical

SOMEONE ANSWER?!!?!?!,!,EMERGENCY Can someone tell me the answer plz plz I’ll give you brainlist and points plz This is my final test No wrong answers

Answers

Answer: Should be A)

Explanation:

the size of planets effects the amount of gravitational force each planet has, like jupiter, it has the most gravity.

Other Questions

The total of all planned real expenditures in the economy is A. aggregate demand. B. aggregate consumption. C. aggregate GDP. D. aggregate spending. Solve each equation.a. 6x + 4 = 34 5th grade math. Correct answer will be marked brainliest. A local insurance agent visits the high school and tells the students that his insurance company will give students a 7% discount on liability insurance, PIP. comprehensive insurance, and collision insurance for three years if they take a defensive driving course. Maria spends $1,437.00 on her auto insurance annually. Is this true or false ?? Which group came to North Carolina in the greatest numbers because of the gold rush?American IndiansAfrican AmericansGerman immigrantsChinese immigrantsThanks i am being TIMED the diagram shows the apparent motion of the sun across the sky? Whats planets rotates in a reclining position? someone please help me! thank you please help me out!!! i have to pass this test What was Maureen trying to keep from Kim? What reason did Maureen give Kim about letting only a few people know about it? brother in the land act 4 scene 1 The graph below shows the relationship between the number of dollars a worker earns and the number of hours worked.Which statement best describes the rate of change for this situation?A. The worker earns $40 per hour. B. The worker earns $8 per hour. C. The worker earns $10 per hour.D. The worker earns $320 per hour. Need help bad. 40 point major have no idea did not get taught this What happened in Bolivia last year after Mas was reelected? Solve the equation by completing the square.x^2+18x=7 please show me how to also. :) PLEASE ANSWER QUICKThe figure presents a diagram of adding d T M P to a growing strand of D N A. A D N A template that consists of nine nucleotides is shown. Five nucleotides have already been added to the complementary strand that is growing from left to right along the template. The left end of the growing strand is labeled 5 prime, and the right end is labeled 3 prime. The left end of the template strand is labeled 3 prime, and the right end is labeled 5 prime. An incoming d T T P has three phosphate groups. Arrows indicate that the two outermost phosphate groups split off as the d T M P with the remaining phosphate group is about to join to the 3 prime end of the growing strand.Figure 1. Model showing details of adding a deoxythymidine monophosphate (dTMP) nucleotide to a growing strand of DNAThe features of this model provide evidence for which explanation of why all growing strands are synthesized in a 5 to 3 direction?A. The two strands need to be antiparallel to bond properly.B. Thymine and adenine would not bond properly if the strand grew from 3 to 5.C. The translation of mRNA occurs in the 5 to 3 direction; therefore, the growing DNA strand must also grow in the 5 to 3 direction.D. The phosphate group, attached to the 5 carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3 carbon of the growing strand. At Carly's Pancake House there are 39 dirty coffee mugs and 21 clean coffee mugs. Whatpercentage of the coffee mugs at the pancake house are dirty? Identify one way that a person can sustain an intentional injury and an unintentional injury. Ineach case, include an individual behavior and a social norm that increases the risk of thatinjury. What is 4 2/5 times 2 2/3 Three friends are participating in acharity run. Joy ran 6.8 miles, Simn ran5.5 miles, and Kita has run 8.4 miles.Part AComplete the bar diagram to find thetotal distance the friends have run.Part BIf each friend ran the same distance ofthe charity run, how many miles wouldeach friend run? Complete the bardiagram to help youPart CIt took Simn 33 minutes to run5.5 miles. Did he run faster or slowerthan 1 mile every 5 minutes? How can you tell?